About
Dr. Mary-Anne Ost earned her Bachelor of Arts in Biophysics and Anthropology from the University of Pennsylvania in 1976. She then completed a Master of Science in Biochemistry at the University of Maryland before earning her Doctorate of Medicine from the American University of the Caribbean in Plymouth, Montserrat in 1981. Dr. Ost completed both her internship and her Family Practice residency at Montgomery Hospital, Temple University in Norristown, PA. She holds board certification from the American Board of Family Medicine and carries additional certification in Geriatrics. She speaks both English and French.
Dr. Ost has built an extensive record of community and academic leadership throughout her career. She has served as Medical Director at Friends Boarding Home and Linden Hall Nursing Home since 1998. That same year, she joined Wilmington College as a Clinical Instructor and Preceptor for the Nursing Practitioner Program. Since 2005, she has directed Project Salud in Kennett Square, PA. She also served as a Clinical Instructor at the University of Pennsylvania School of Medicine from 1996 to 2001. She holds licensure in both Pennsylvania and Delaware and maintains memberships in the American Academy of Family Medicine, the American Medical Association, the Pennsylvania Medical Association, and the Chester County Medical Society.
Education & Training
Undergraduate
University of Pennsylvania, Philadelphia, PA, Bachelor of Arts, Biophysics and Anthropology 1976
Medical School
American University of the Caribbean, Plymouth, Montserrat, Doctorate of Medicine 1981
Residency
Family Practice, Montgomery Hospital, Temple University, Norristown, PA 1984-1985
Additional Training
Internship: Montgomery Hospital, Temple University, Norristown, PA 1982-1983; Postgraduate: University of Maryland, College Park, MD, Masters in Biochemistry 1978
Certifications
Languages
English, French
Who is Dr. Ost right for?
Dr. Ost is a strong fit for adults seeking a thorough, relationship-driven family medicine physician with deep roots in the community. Patients managing chronic conditions such as diabetes, high cholesterol, or hypertension benefit from her proactive, individualized approach. Her Geriatrics certification makes her especially well suited for older adults and patients whose families need coordinated care. Anyone who values direct, consistent access to their own physician will find her practice a natural home.
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Frequently Asked Questions
Dr. Ost specializes in family medicine and holds board certification in Geriatrics. She focuses on preventive care, chronic disease management, and individualized wellness planning. Her experience covers a broad range of primary care needs across adult age groups, with particular depth in caring for older patients.
Yes. Dr. Ost holds certification from the American Board of Family Medicine. She also carries board certification in Geriatrics, reflecting her experience caring for older adult populations.
Dr. Ost earned her medical degree from the American University of the Caribbean in Plymouth, Montserrat in 1981. She completed both her internship and Family Practice residency at Montgomery Hospital, Temple University in Norristown, PA. She also holds a Master of Science in Biochemistry from the University of Maryland and a Bachelor of Arts from the University of Pennsylvania.
Dr. Ost speaks both English and French.
Yes. Dr. Ost has served as a Clinical Instructor and Preceptor at Wilmington College's Nursing Practitioner Program since 1998. She previously held a Clinical Instructor role at the University of Pennsylvania School of Medicine from 1996 to 2001.
Dr. Ost serves as Medical Director at Friends Boarding Home and Linden Hall Nursing Home, a role she has held since 1998. She has also directed Project Salud in Kennett Square, PA since 2005. These roles reflect her long-standing commitment to care within the local community.
Yes. When you visit the office, you see Dr. Ost directly. The practice does not route patients to nurse practitioners or physician assistants as a substitute for Dr. Ost.
Dr. Ost aims to manage and anticipate each patient's individual health needs. She combines a close doctor-patient relationship with evidence-based clinical advances. Her goal is to collaborate with patients on a clear, personalized path toward lasting wellness.
Doctor profile last updated June 6, 2026