President & CEO

Frederica M. Williams, FCIS (UK), MBA  (Biography )

Board of Directors

Alicia Wedderburn, Founder & CEO, Science Ed Consulting and Lead Science Coach, Boston Public Schools – Chair
Eva Clark, Semi-Retired Attorney – Vice Chair
Cindy Walker, WSHC Patient
Monica Johnson , (Attorney and Educator), Paraprofessional, Dearborn Stem Academy
Pastor Vicente Castro- Pastor, Pentecostal Church of God International Movement
Apefa Ashiagbor, Chief Administrative Officer Massachusetts Executive Office of Health and Human Services
Peter O. Maathey, Innovation Leader, Pacific Life Insurance Co.
Angel Simpson, Retired Math and Science Teacher, Boston Public Schools

President’s Advisory Council

Robert Mahoney, CEO, Corporate Consulting LLC – Chair
Dan Nova, Highland Capital Partners (Partner)
Deborah Daccord, Esq. Member, Mintz
Frank Doyle, Chairman & CEO, Connell Limited Partnership
Gene Lindsey, MD, Atrius Health (CEO Emeritus)
John Jenkins, President, West Insurance Agency
Sandra King, Principal & Founder, STKing Associates LLC
Susan Coakley, Division President, Cityblock Health.
Tom May, Eversource Energy (Chairman Emeritus)
Steve Rotman, Head of People & B-Flexion Life Sciences, Karyopharm Therapeutics Inc

Senior Leadership Team:

Jim Lee, Senior Vice President & CFO
Stephen Wright, MD, MBA, Medical Director
Dr. Nurulla Diyanat, Dental Director
Christine Pajarillo, LICSW, Vice President of Programs and Social Services
Michael Ndungu, Chief Information Officer
Keith Abbott, Vice President of Human Resources & Facilities


Dr. Habib Sioufi, MD, Director of Laboratory
Cheryl Jean, Director of Lower Roxbury Coalition
John Nichols, Director of Patient Financial Services
Chigoziri Ojuka, FNP, NP – Mental Health,  Director of Blue Hill Ave Satellite Clinic
Helen Araya, Director of WIC
Melissa Leaston, Director of Nursing
Nadya Nadhir, MD, Director of Quality Assurance
Sabya Abdul Rauf, Pharmacy Director
Dr. Adrienne Headley, MD Lead Physician OB/gyn

Associate Directors:

Caryoln Reynolds, Associate Director Behavioral Health Services, Adult and Substance Abuse Services
Brenda Daley, Associate Director Behavioral Health Services, Child and Family Services
Dr. Mirelle Alexis, DMD, Associate Director, Dental Services


Marcello Mickel, Manager of Operations
Dr. Robin Mayfield, MD, Lead Physician, Family Medicine
Dr. Joseph DeMertine, MD Lead Physician, Wellness and Specialty Services
Daniel Auguste, Accounting Manager
Diana Sencion, Manager of Engagement Center
Siham Fatmi, Manager of Community Health Improvements and Health Equity
Ashley Baril, Wellness and Fitness Center Manager
Robert Edwards, Community Relations Manager and Community Outreach Programs


A note about Whittier and COVID-19

Due to the ongoing COVID-19 outbreak in our area, we ask all clients and patients to call ahead before coming to any of our sites. We are working to take care of most clients/patients via phone/video encounter so we can meet your ongoing healthcare needs. This is for your safety and so we can provide the highest quality of care to you while following CDC guidance for COVID-19. Please call 617-427-1000 for any questions or concerns.

Whittier will provide COVID-19 testing from 10 am to 4 pm on Monday to Friday. Following CDC guidance, we recommend testing if you have a fever AND one of the following three symptoms: cough OR shortness of breath OR sore throat. Please bring your picture identification and your insurance card (if you have insurance).