Meet Our Team
Ramin Ahmadi, MD
Medical Director
Dr. Ahmadi graduated from the Medical College of Wisconsin, studied Internal Medicine at Yale School of Medicine, and earned a Master of Public Health degree from Yale School of Public Health. He is a trusted medical and public health expert, and his insightful perspectives on healthcare have been featured in Healthline, Marketwatch, Cosmopolitan, and PBS Next Avenue. He has worked with numerous academic medical centers and community hospitals for more than two decades. As a clinician educator, he has been the recipient of many awards of excellence and has secured critical resources through highly competitive private funding receiving over $20 million dollars in federal grants to build accredited residency training programs in primary care.
Donna Phanumas, MD
Geriatrician
Dr. Donna Phanumas is a graduate of New York Medical College. She completed her internal medicine residency at North Shore University Hospital in Manhasset, NY and her geriatrics fellowship at Stony Brook Hospital in Stony Brook, NY. Her interests include teaching medical interns and residents at the Greenwich Hospital Internal Medicine Residency program and caring for the elderly population.
Ishrat Rangwala, DMD
Dentist
Dr. Rangwala received her Doctor of Dental Medicine (DMD) degree from University of Pennsylvania School of Dental Medicine. Prior to moving to United States, she received her Master in Dental Surgery (MDS), Prosthodontics from Gujarat University, India. She is a member of American Dental Association, Connecticut State Dental Association, National Network for Oral Health Access, and serves on the CT state’s CTDHP Dental Policy Advisory Committee. Dr. Rangwala was in private practice for over 5 years prior to joining Family Centers in 2016. Currently as Dental Director, she leads the dental program that serves to a diverse population. She excels in providing innovative, advanced, comprehensive care with strong emphasis on patient education and partnership. She is passionate about preventive dental care and integration of oral health with patient’s overall well-being. Each year, Dr. Rangwala completes over 50 hours of Continuing Education and has taken courses in prosthodontics, endodontics, oral surgery and infection control.
Charles Seelig, MD
Adult Primary Care Provider; Director of Medical Education, Greenwich Hospital; Clinical Professor of Medicine at Yale School of Medicine
Jon Zimmerman, MD, MBA, FACP
Adult Primary Care Provider; Associate Program Director, Internal Medicine Residency Program at Greenwich Hospital/Yale New Haven Health System; Clinical Assistant Professor at Yale School of Medicine
Jennifer Gilbert, APRN
Adult Primary Care Provider
Lisa Henderson, APRN, CPNP-PC
Pediatric Primary Care Provider
Lisa Henderson is a certified pediatric nurse practitioner with more than 25 years of pediatric experience in primary, acute and emergency care at both academic and community health centers. She earned her BSN at Villanova University, MSN from New York University and is currently enrolled at Case Western Reserve University for her Doctor of Nursing Practice. Lisa has been a provider at Yale New Haven Hospital at Greenwich Hospital for 20 years and remains dedicated to providing comprehensive primary care in the community for children and their families.
Christine Higgins, APRN
Adult Primary Care Provider
Christine Higgins, APRN, is a dual-certified Family Nurse Practitioner and Certified Nurse Midwife. Christine holds a Doctor of Nursing Practice in Health Systems Leadership from Emory University. Her doctoral and clinical research focuses on mitigating environmental health disparities for pregnant individuals and their children. At Family Centers, Christine provides prenatal care, postpartum care, gynecologic care including contraception, and primary healthcare to adolescents and adults. She also provides sexual health screening and reproductive educational services through Greenwich Town Hall Department of Health every Tuesday afternoon.
Joseph Hurtado, PA
Adult Primary Care Provider
Yekaterina Snelwar, NP PNP
Pediatric Primary Care Provider
Susan Welch, NP PNP
Pediatric Primary Care Provider
John Midy, MBA
Director, Family Centers Health Care Medical/Dental
John Midy, MBA, joined Family Centers in 2018 and shares a passion in addressing the community’s health needs while fostering leaders in the team he manages. John leads Family Center’s Federally Qualified Health Center’s (FQHC) Medical and Dental operations. Since joining Family Centers, his dedication and leadership has expanded the agency’s services and increased access to care, helped the organization gain accreditation for Joint Commission and Patient Centered Medical Home, implemented innovative care team models, and increased agency brand recognition in the community. John graduated from Quinnipiac University and holds a Master’s in Business Administration with an additional focus in Health Care Management.
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