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 / NY

MARCUS M KNAPP, PA

PHYSICIAN ASSISTANT

Graduated: 2002

NPI: 1861429995

Practice Locations (3)

SAMARITAN MEDICAL CENTER

10881 US ROUTE 11

ADAMS, NY 136053154

3152324400

SAMARITAN MEDICAL CENTER

19320 US ROUTE 11

WATERTOWN, NY 136015337

3157860254

SAMARITAN MEDICAL CENTER

830 WASHINGTON ST

WATERTOWN, NY 136014034

3157854000

Source: CMS National Downloadable File, September 2026.

MARCUS KNAPP, PA | HealthCareAtlasUSA