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 / OR

MARK ZAHNISER, MD

ANESTHESIOLOGY

Graduated: 1990

NPI: 1396738548

Practice Locations (1)

HOSPITALIST MEDICINE PHYSICIANS OF WASHINGTON - TCS

9205 SW BARNES RD

PORTLAND, OR 972256603

5032161234

Source: CMS National Downloadable File, September 2026.

MARK ZAHNISER, MD | HealthCareAtlasUSA