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DCMS Officers & Directors

The Delaware County Medical Society (DCMS) is a professional organization for physician members (medical and osteopathic doctors), affiliated with the Pennsylvania Medical Society (PAMED) and the American Medical Association

Founded in 1850, and later incorporated as a non-profit organization, the DCMS is an active grassroots organization for physicians. Our members either live or practice in Delaware County, PA, and are of all medical and surgical specialties. They are also in a wide variety of practice modalities, including employed physicians, private practice physicians and also those in administrative, research and academic positions. 

Meet The Officers

Ryan Mascio, DO

President

Ryan M. Mascio, DO
Pediatrics

June Elcock-Messam, MD_edited.jpg

Past President

June E. Elcock-Messam, MD
Pediatrics

Meet the Board of Directors

Ronald Anderson MD

Ronald B. Anderson, MD

Rheumatology

Dina F. Capalongo, DO Internal Medicine.jpg

Dina F. Capalongo, DO

Internal Medicine

Delaware County Medical Society

Stephen N. Clay, MD
Internal Medicine/Addiction Medicine

Maura Dunfey, DO Psychiatry

Maura Dunfey, DO
Psychiatry

Joyann Kroser MD, FACG.jpg

Joyann Kroser, MD
Gastroenterology

Lisa O'Mahony, MD

Lisa O'Mahony, MD

Pediatrics/Public Health

Nancy Rist

Nancy Rist, MD

 Internal Medicine

Delaware County Medical Society

Jeannine Roth MHA

OB/GYN

Kai Turner, MD_edited_edited.jpg

Kai Turner, DO

Pediatrics

Jill Venskytis, CMM, HITCM-PP.jpg

Jill Venskytis, CMM
Pediatrics

DCMS Staff

Linda Harley, Associate Director

David A. McKeighan, Executive Director Emeritus

Delaware County Medical Society

©2022-2026 by Delaware County Medical Society.

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