
Raul Ayala, MD, MHCM

Sabrina Ballew

Regina Berman, RN, MA

Sharon Colaizzi, RN BSN/BS, MPPM, CPHM

Mina Chang, Ph.D.

Chris Esguerra, MD

Karleen Haines

Seiji Hayashi, MD, MPH, FAAFP
Lead Medical Director for Government Programs

Kisii Hosack

Erica Idso-Weisz, MS, LMFT

Diane Marrone

Traci A. Massie, PMP, MBA, CCHW

Jim Milanowski

Kate Miller

Alan Rice, LCSW

Tabitha Ross

Joann Sciandra, MHA, BSN, RN, CCM

Cameual Wright, M.D., MBA

Jamie Zajac, DC

Raul Ayala, MD, MHCM
Raul Ayala, MD, MHCM, Ambulatory Medical Officer at Adventist Health, is the first CAFP
President from the Central Valley area, including Fresno, Kings, Madera and Tulare
counties. Dr. Ayala has spent the last ten years caring for rural patients in the Central
Valley and collaborating with community partners to tackle health disparities.
Dr. Ayala has been transforming healthcare in the state by implementing screenings and
care plans into every clinic visit, including those that impact a patient’s overall well-being:
food insecurity, mental health, opioids, substance use disorders, diabetes, asthma, and
heart disease.

Sabrina Ballew
Sabrina Ballew is the Supervisor of the Mercy Flights Mobile Integrated Healthcare (MIH)
department. She began her career at Mercy Flights in 2013 and joined MIH in 2015 as part
of the start-up team, focusing on taking patient care to the patient. She is Community
Paramedic and a Community Health Worker (CHW). Currently, she is the Chair of the
Oregon MIH/CP Coalition.
Prior to her time at Mercy Flights, she was an Emergency Medical Technician with a local
fire department, responding to 911 and other emergency calls. She has also served as an
instructor in EMS at Rogue Community College.
Sabrina has served as the Secretary of the Jackson County Community Services Consortium
for the past four years. Serving non-profit agencies in Jackson County. She has a strong
passion for sharing her knowledge in the area of MIH and CHW in the community and
abroad.
She is married with five children, three dogs, and two cats. Her family resides in Medford
and Georgia. You will most likely find her in her garden or exploring all of the beautiful
scenery of Southern Oregon.

Regina Berman, RN, MA
Regina Berman, RN, MA, Integrative Care Management and ACO Executive for the
Adventist Health system, is responsible for the development and execution of longitudinal
care coordination services across the care continuum using a Progression of Care Model.
She is also a responsible for the clinical components of a successful revenue cycle and
Value Based Care initiatives. Previously, Principal Strategic Advantage for Health, providing
guidance to organizations on effective design and execution for emerging value-based
payment models and performance excellence. Skilled in designing whole system change,
program integration and analytic platforms for clinical and claims-based data integration.
Previously served as the VP Population Health and Accountable Care, COO MemorialCare
Regional ACO, LLC for MemorialCare Health System. She oversaw all aspects of
MemorialCare's population health management, bringing more than 20 years of leadership
experience in health care performance improvement, quality, safety and knowledge
management and in clinical, operational and service excellence. Prior to joining
MemorialCare, Ms. Berman was the VP for Quality and Resource Stewardship for Kaiser
Permanente. Population Health, Advanced Senior Care, Transitions of Care and Case
Management and Medical Cost Trending, Quality & Regulatory affairs were among her
areas of responsibility. She managed a $1.7 billion medical cost budget and achieved a zero
% expense trend during her tenure.
While working with Hackensack University Medical Center as an Executive Director of
performance improvement and innovation, she led several national projects including the
$22 million, 3-year RWJ/IHI Pursuing Perfection grant and the subsequent CMS P4P
demonstration project. She is certified in a variety of quality and coaching models and is a
certified lean leader and patient safety officer. Previous positions include; Senior Vice
President at JPS Health Network in Texas, and Executive Director of Corporate Quality &
Medical Management at Mt. Sinai Health System in New York.
Regina has a demonstrated track record for achieving national best practice triple aim
outcomes in a variety of healthcare and related business environments; public, private,
academic and start up.
Ms. Berman provided faculty support for the Centers for Medicare & Medicaid Innovation
(CMMI) Improvement Advisors Program and has served as an examiner for the
Department of Commerce Malcolm Baldrige Performance Excellence Program and was the
Chair of Quality NJ, the state Performance Excellence Program. Ms. Berman is a trained
Life Coach/mentor by the Bark Institute (Wisdom of the Whole) and the Institute of
HeartMath.
A registered nurse Regina holds an M.A. from New York University, completed Harvard
University’s Executive Leadership Program and has spent much of her career developing
and refining clinical and operational programs and developing partners that span the care
continuum. She has served as Chair of New Jersey's State Quality Program, on the Malcolm
Baldridge National Performance Excellence Program Board of Examiners, is a Diplomat of
the American Board of Quality Assurance and Utilization Review Physicians and a Certified
Professional in Healthcare Quality of the National Association for Healthcare Quality.
Berman served on the National Quality Forum Executive Institute Advisory Board and
Performance Measurement Task Force. She speaks nationally on population health and
performance measurement improvement strategies, information management and other
topics.

Sharon Colaizzi, RN BSN/BS, MPPM, CPHM
Sharon is the Senior Leader Clinical Strategy and Integration. In this role, she is responsible
for oversight of the development and execution of strategies for clinical and operational
teams for the organization.
Sharon is an accomplished population health management executive with comprehensive
healthcare experience across acute, ambulatory and community settings addressing
physical, mental and social health and well-being. Her impact has been in leading
interdisciplinary teams strategically and tactically in clinical operations focused on patient
engagement, provider engagement and cost of care. She’s held previous leadership roles
at United Health Care, Molina and UPMC

Mina Chang, Ph.D.
Dr. Chang currently leads Ohio Department of Aging’s Analytics & Compliance division,
using business intelligence to improve statewide delivery of long-term services and
supports.
She is an accomplished leader and trusted advisor in large healthcare, public health, and
human service delivery systems for a wide span of governments and national markets.
Mostly recently, she was a senior executive and VP for Bethesda LC, a prominent long-term
care provider on disabilities. She led all aspects of quality, training, and COVID response for
its 3,000 employees nationwide.
She was formerly an assistant health commissioner for the New York City, one of the
world’s largest health organizations. She led her team to improve health insurance and
safety net services for all New Yorkers. She previously held various operations and quality
leadership roles for the State of Ohio to improve access to and quality of care for more
than three million Ohioans.
Dr. Chang is a frequent speaker at key industry forums and has served as a subject matter
expert at MACPAC, SAMHSA, and CHCS. She earned her Ph.D. and Master of Public
Administration from the Ohio State University.

Chris Esguerra, MD
An experienced healthcare leader, Chris Esguerra, MD, MBA, FAPA, CHCQM has led
systems transformation, program evolution, and public/private partnerships leading to
outcomes meeting the quadruple aim of improving health, cost effectiveness, enhancing
patient experience, and supporting provider well-being. He serves as Chief Medical Officer
for Health Plan of San Mateo, a local community plan serving Medicaid and dually eligible
Medicare and Medicaid beneficiaries. He also advises nonprofits partnering in healthcare
delivery, healthcare startups, and provider groups.
His experience encompasses health care provider and systems leadership, managed care
operations, novel payment models, public-private partnerships, and health care
transformation. He has led significant efforts around integration of care and services for a
variety of populations, holistically addressing social determinants of health in healthcare
delivery, and helping people remain and age in the community with appropriate long-term
services and supports. He most recently served on a National Academy of Science,
Engineering, and Medicine committee that published Integrating Social Needs Care into
the Delivery of Health Care to Improve the Nation's Health.
Dr. Esguerra is board certified in both Psychiatry and Health Care and Quality Management
and is a Fellow of the American Psychiatric Association and the American Board of Quality
Assurance and Utilization Review Physicians. He received his BS in Chemistry and Medical
Degree from the University of Southern California. He completed his residency training in
Psychiatry at San Mateo County Behavioral Health and Recovery Services Psychiatry
Residency Training Program. He also received his MBA in business management from the
Isenberg School of Management at the University of Massachusetts at Amherst.

Karleen Haines
Karleen is a non-profit executive with 24 years of experience in the field of human services.
Prior to joining Partners Health Plan in December 2014, she was Director of Vocational and
Employment services at a large non-profit serving individuals with intellectual and
developmental disabilities, supporting over 500 adults through programs such as day
habilitation, supported employment, and pre-vocational. She was instrumental in
developing and growing affirmative business models that support gainful work for adults
with disabilities. Karleen has participated on Education and Workforce Development
Committees for various disability advocacy groups, served as a Diversity and Inclusion
facilitator, and worked as an adjunct faculty at Nassau Community College – teaching an
I/DD studies course.
Ms. Haines oversees various initiatives as part of the leadership team for Partners Health
Plan and Care Design NY. She champions advocacy efforts for the IDD community
alongside members and families, seeking to raise a collective voice for a better future.
Karleen also serves as the organization’s DEIB Officer - leading
diversity/equity/inclusion/belonging strategies for staff and stakeholders. Recently, she
held roles that include Chief of Care Coordination and Chief of Community Relations &
Outreach. Karleen serves on the state’s Developmental Disabilities Advisory Council sub-
committee on housing. She is a licensed Health Agent in the state of NY; earned a ‘DEI in
the Workplace Certificate’ from University of South Florida; and holds an undergraduate
degree in psychology and a master’s in management from the State University of NY at
Stonybrook.

Seiji Hayashi, MD, MPH, FAAFP
Lead Medical Director for Government Programs
Dr. Hayashi is Interim Chief Medical Officer for the Community Health Plan of DC and the
Lead Medical Director for Government Programs at CareFirst BlueCross BlueShield that
serves 3.5 million individuals and groups in Maryland and the Washington metropolitan
area.
Dr. Hayashi was a member of the National Academies of Science, Engineering, and
Medicine’s committee that published the seminal report, “Transforming Health Care to
Create Whole Health: Strategies to Assess, Scale, and Spread the Whole Person Approach
to Health.”
Dr. Hayashi is board certified family physician and is an experienced leader in primary care,
quality improvement, and health policy at the local and national levels. Prior to CareFirst,
he spearheaded health services integration and transformation at two area federally
qualified health centers. Hayashi's national health policy experience comes from his role as
Chief Medical Officer for the Bureau of Primary Health Care at the Health Resources and
Services Administration. He started his career at Georgetown University and at George
Washington University teaching public health and conducting health policy research.
Hayashi has received a number of awards and honors, including the Samuel U. Rodgers,
MD Achievement Award from the National Association of Community Health Centers.
Dr. Hayashi graduated with honors in Studio Art from Vassar College, received his M.D.
with Alpha Omega Alpha distinction from the Albert Einstein College of Medicine and
completed his family medicine residency training at the University of California San
Francisco. He received his M.P.H. from the Harvard School of Public Health while a fellow
with the Commonwealth Fund/Harvard University Fellowship in Minority Health Policy.

Kisii Hosack
Kisii Hosack is an Interim-Director at Colorado Access. She received her Master of Public Health degree from Tulane University with focuses in community health & nutrition and population health. During her time at Colorado Access, she has implemented various digital engagement programs that cover a variety of health conditions ranging from chronic condition management to child and maternal health. Kisii has led the implementation of diabetes management programs which assists with goal tracking and overall diabetes management. Kisii connects with internal and external stakeholders to determine suitable solutions to influence health outcomes within the Colorado Access membership to ensure that members are receiving relevant and applicable health information.

Erica Idso-Weisz, MS, LMFT
Erica Idso-Weisz, MS, LMFT (she/her) Regional Care Team Manager at Jackson Care Connect (JCC) the Coordinated-Care Organization (CCO) for Jackson County. In this role, she oversees the care coordination efforts across primary care, behavioral/mental health, dental, pharmacy, Non-Emergent Medical Transport (NEMT) and Social Determinants of Health (SDOH) needs. Prior to her current role she was the Behavioral Health Director at Rogue Community Health, a Federally Qualified Health Center (FQHC) serving the Rogue Valley. Prior to transplanting to Oregon, she was the Director of Behavioral Health and clinician at Open Door Health Center serving primarily low-income, under/uninsured patients focused on refugee populations. Providing integrated behavioral health services in primary care is a significant passion. She currently serves on the Medical-Legal Partnership Board of Oregon (MLPO) and has deep commitment to Healthcare-Legal Partnerships. She is committed to integrated, team-based and whole-person care. Her enthusiasm to improving the world continues at home. She and her family are engaged in land conservation, regenerative practices, pollination efforts, food preservation and all things farm life at Itty Bitty Acres in Southern Oregon.

Diane Marrone
Diane was named Chief of Care Management for Care Design NY on January 1, 2022, when
Partners Health Plan (PHP) and Care Design NY, a Care Coordination/Health Home
(CCO/HH) headquartered in Albany which provides care management for over 28,000
individuals with IDD, aligned to form one organization to better leverage the care
management workforce and strengthen the expertise in caring for people with IDD. For
seven years at PHP, Diane served as first, Regional Director, then Senior Director and
finally, Chief of Care Coordination. Her leadership ensured enrolled members received high
quality supports and services to meet their desired outcomes and needs. She continues to
provide unwavering support to Care Managers, so they have the resources required to
care for individuals and families enrolled in the CCO/HH or FIDA-IDD plan.
Her career in the IDD sector spans 25 years. She has held varied positions within the non-
profit sector serving individuals with IDD from birth through adulthood. Experience prior to
PHP includes the Assistant Director for Intermediate Care Facilities at AHRC Suffolk where
she managed staff and oversaw operations necessary to fully support individuals with both
developmental disabilities and complex health needs.
She earned a Master of Social Work degree from Fordham University and is a Licensed
Clinical Social Worker and Certified School Social Worker. She also holds an Executive
Education Certificate in Non-Profit Leadership from Fordham University

Traci A. Massie, PMP, MBA, CCHW
Mrs. Massie is a Project Management Professional (PMP) and Certified Community Health
Worker (CCHW). She earned these certifications because she is an accomplished leader
with a 25-year track record of successful strategic and tactical leadership within the
healthcare industry.
She specializes in project management, business process optimization and reengineering,
and regulatory compliance. She has developed management policies and procedures
designed to maintain a transparent and strong operating environment regardless of the
size of the organization. Additionally, she has created social determinants of health
programming to address health equity and barriers faced by the underserved and worked
to foster an environment rooted in diversity, equity, inclusion, and authenticity. She has
extensive experience in operations management, corporate culture change, policy and
procedure development, and major project management in her positions of Director of
Government Programs, Director of Project Management, Product Development Manager,
and Contract Manager at Optima Health Plan and Sentara Healthcare. Earlier in her
career, Mrs. Massie was Assistant Finance Director for the Museum of the Confederate
(Now known as the American Civil War Museum) in Richmond, VA.
With an unwavering commitment to excellence, she promotes thought leadership and
innovation in her approach to tasks. She has expertise in leading and implementing
enterprise-wide initiatives, demonstrated the ability to instill a common goal and develop a
balanced team based on trust and mutual respect. Mrs. Massie has a collaborative
leadership style with highly effective planning, organizational, and communication skills,
which drive solutions and results.
Mrs. Massie has a Bachelor of Arts degree from the University of Virginia and a Master of
Business Administration from Old Dominion University. She is currently pursuing a
doctorate degree in Business Administration.
Believing in creating strong communities and being a conduit of opportunities, she serves
on the Board of Directors of the Virginia Certification Board and the University of
Richmond Customer Experience Program Advisory Board. She is the Co-Chair of the
Diversity, Equity, and Inclusion Council for Optima Health. She is a member of Alpha Kappa
Alpha, Sorority Inc. (Past Chair of the Audit Committee & Past Financial Secretary), a
member of The Links, Inc. (Past Editor of the Newsletter), and an active member in her
church (Pre-K thru 1st grade Sunday school teacher and ministry leader of the Culinary Arts
Ministry). She has also served as the Past Co-Chair for the United Way Fundraising
Campaign for Optima Health Plan, Norfolk, VA, and Past Co-Chair for the Major Gift Donor
Fundraising Committee for the Capital Campaign for Grove Baptist Church in Portsmouth,
VA.
Mrs. Massie is married to Michael Massie and has been for twenty-seven years. Mr. and
Mrs. Massie have four children, Michael a law student at Howard University, Taylor a
law/business student at Golden Gate University, Kennedy a student at Spelman College
studying biology and Caroline, a student at Morgan State University studying business.
In her free time, she enjoys meditating, doing hot yoga, eating good food, and spending
time with family and friends. She loves to cook, travel, read, and enjoys all types of music.
Additionally, Mrs. Massie enjoys mentoring and coaching aspiring leaders and believes in
community service.

Jim Milanowski
Jim Milanowski has over 22 years experience in the management of mental health, substance abuse, behavioral health managed care and medical care coverage programs. Mr. Milanowski currently serves as the President and Chief Executive Officer of the Genesee Health Plan (GHP), administering a community based indigent health care plan. The health plan has covered over 70,000 Genesee County residents since 2001. Since the start of enrollment into Affordable Care Act in 2013, GHP has conducted outreach and enrollment sessions with over 15,000 Genesee County residents. The health plan received the 2015 Pinnacle Award from the Michigan Association of Health Plans for this effort. As a strong advocate, his expertise includes working to reduce racial disparities, uncompensated care, and the impact of chronic disease. During his leadership, Genesee Health Plan has received the national quality award from URAC for Best Practices in Patient Empowerment and Protection, the Greater Flint Labor Council's Community Partnership Award and the Robert M. Pestronk Excellence in Public Health Award. He is a founding member of the Health Net Collaborative, and a member of the Greater Flint Health Coalition Access, Dental and Medical Group Visit Committees. He is the Treasurer of the Michigan Association of County Health Plans and is on the Board of Directors for the Genesee Community Health Center. Mr. Milanowski received his Bachelor of Arts degree in Psychology from Spring Arbor University and his Master's of Science degree in Clinical Psychology from Eastern Michigan University. He is a limited-licensed psychologist in the state of Michigan, and has extensive counseling experience with adult, child, and adolescent populations.

Kate Miller
Kate Miller is the Whole Health Director for the Kentucky Medicaid Plan of Elevance
Health. She is a licensed clinical social worker and certified case manager with over 25
years’ experience working in the mental health sector. Kate earned her Bachelor’s Degree
in Psychology from Bellarmine University and a Master’s Degree in Social Work from the
University of Louisville. Since 2014, she has been working specifically in managed care,
overseeing behavioral health case managers, quality improvement teams and most
recently population health strategies for Medicaid beneficiaries in Kentucky.
Kate brings her passion for seeing unique solutions to overcome barriers that impact
health care outcomes. A self-proclaimed ‘data geek’, she uses data driven informatics to
design and implement programs that seek optimal health outcomes for the members that
Elevance Health has the privilege of serving.

Alan Rice, LCSW
Alan Rice graduated Kean College of NJ in 1977 with a BSW degree and went to work for
the NYC Depart of Education as a Drug Counselor in a School Base Drug Prevention
Program. In 1980 he went to work at Beth Israel Medical Center at the Bernstein Institute
as a social work assistant on a male drug detox unit. During this time Alan entered the first
PEP program in the country at WSSW to be able to obtain his MSW which he did in June
of1983. In July of 1983 he accepted a transfer to the Medical/Surgical Division of the Beth
Israel Department of Social Work. In August of 1983, he was asked to become one of the
first dedicated hospital AIDS social workers which he accepted. Alan has been involved
with the HIV/AIDS since, providing social work services as well as having a progressive
career as a supervisor, manager and Director of AIDS social workers in both a hospital and
nursing home setting. Alan is presently the Population Health Specialist for VNSHealth,
Select Health, a HIV Medicaid Manage Care Special Needs Plan, one of only three in NYS.
Alan is an adjunct professor at WSSW teaching an Addiction course, as well as teaching at
Touro College School of Physician Assistant.
He has served on a variety of NYC and NYS committees around making services better to
the HIV and AIDS population as well as the Substance Abuse population.
He was the first President on the board of Professional Association of Social Workers in HIV
and AIDS and remains an active member.

Tabitha Ross
Tabitha Serves as the Director of Health Equity for Anthem Blue Cross Blue Shield Kentucky Medicaid. She received both her Bachelor of Arts in Sociology and master’s degree of Social Work from the University of Kentucky. She is a Certified Social Worker, Certified Case Manager with the National Commission of Case Management, as well as a member of the National Association of Social Workers. She has 16 years’ experience in various settings of population health management. Tabitha has a passion for serving others and advocating for equitable access to health for all individuals. Her goal is to improve individual access to systems and services which will help people to achieve the most optimal healthy versions of themselves- not only at the doctors’ offices but in the communities, they live, work, and play in.

Joann Sciandra, MHA, BSN, RN, CCM
Joann Sciandra MHA, BSN, RN, CCM is the Vice President of Care Coordination and
Integration at Geisinger, one of the nation’s largest health care organizations. In her role,
Joann is accountable for the oversight of outpatient Care Management services, Proven
Health Navigator® (PHN) (Medical Home), Special Needs Unit.
Joann is charged with managing medical trends, designing, implementing and
administering best practice disease and case management programs, collaborating with
Geisinger’s Community Medicine and other provider groups in the clinical transformation.
Joann is also responsible for the oversight and implementation of ProvenHealth
Navigator®, leveraging continuous quality improvement, driving and promoting services
that are patient-centric. Prior to her promotion to Vice President, Joann held the role of
Associate Vice President of Population Health with a focus on outpatient community
services. In this role, she was integral in the start-up, maintenance and providing direction
to the nurse case managers within the ProvenHealth Navigator ® program at Geisinger
Health Plan.
Joann earned her Master of Health Care Administration Degree from Grand Canyon
University, and her Bachelor of Science in Nursing Degree from Wilkes University. She is
also a Certified Case Manager. Joann has been a co-author for several publications and has
presented nationally in Singapore regarding Medical Home and Case Management.

Cameual Wright, M.D., MBA
As the Vice President, Market Chief Medical Officer for CareSource Indiana, Dr. Wright
oversees the development and implementation of all clinical policies, procedures and
operations, ensuring adherence to regulatory and care standards. She is responsible for
fostering effective relationships with healthcare providers, state agencies and community-
based organizations to improve the health and well-being of both members and the
community.
Prior to joining CareSource, Dr. Wright practiced obstetrics and gynecology in Indiana for
15 years and has held multiple clinical leadership positions. She continues to passionately
advocate for improvements and equity in maternal and infant outcomes, serving on
multiple local and national boards and committees, including the Indiana Perinatal Quality
Improvement Committee, the Indiana Maternal Mortality Review Committee, the March
of Dimes, as a Maternal and Infant Health Expert with the Centers for Medicare and
Medicaid Services (CMS) and most recently, as the Chair of the American Diabetes
Association Women's Health Initiative Scientific Advisory Committee. A vocal proponent of
health equity, Dr. Wright dedicates both time and talent to efforts aimed at mitigating
health disparities in Indiana and across the nation. She has spearheaded multiple equity
initiatives at CareSource, including the CareSource Re-entry Program, recognized by the
Indianapolis Business Journal as a “Healthcare Hero” in community achievement. Dr.
Wright has steered the development of both internal and external committees focused on
ensuring that every individual has an opportunity to achieve their full health potential,
regardless of how they identify.
Dr. Wright has been tapped by numerous local and regional media outlets to provide
expert perspective on current events that are impacting the health of CareSource
members and the community, including the infant formula shortage, childhood
vaccinations, women’s health, re-entry,

Jamie Zajac, DC
Jamie Zajac, is the DC the Director of Care Management at Colorado Access, a non-profit health plan specializing in the integrated management of populations enrolled in Medicaid and CHP+. In her role, Jamie supports the care management department in a variety of ways including, but not limited to developing and implementing clinical care management interventions/programs to ensure that contract deliverables and company strategic goals are met, supporting care management staff, and working closely with both internal and external partners to identify and mitigate system barriers to ensure members have access to quality and equitable services. Jamie received her Bachelor of Science degree from Colorado State University in Health and Exercise Science, and her Doctor of Chiropractic from Logan University in Missouri. Jamie has over 17 years of experience in healthcare and has worked in a variety of settings including: corporate fitness/health promotion, hospital- based education, and outreach programs at the St. Louis Children’s Hospital, and disease management programs in the private health insurance sector. Jamie enjoys reviewing clinical data of large populations and creating programs to look at the whole person, to ensure the right intervention is provided to our members at the right time.