HealthCareAtlasUSA

This site republishes official CMS/Medicare Care Compare data. It is not medical advice and does not recommend any specific hospital or treatment — for medical decisions, talk to a doctor.

Doctors / PA

RONALD P MARKOS, MD

GASTROENTEROLOGY

Medical school: HAHNEMANN UNIVERSITY COLLEGE OF MEDICINE

Graduated: 1988

Also: INTERNAL MEDICINE

Offers telehealth

NPI: 1851399786

Practice Locations (1)

REGIONAL GASTROENTEROLOGY ASSOCIATES OF LANCASTER, LTD.

817 LAWN AVE

SELLERSVILLE, PA 189601579

2152575071

Source: CMS National Downloadable File, September 2026.

RONALD MARKOS, MD | HealthCareAtlasUSA