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 / CA

STEVEN TOLKAN, MD

NEPHROLOGY

Medical school: UNIVERSITY OF WISCONSIN SCHOOL OF MEDICINE

Graduated: 1973

Also: INTERNAL MEDICINE

NPI: 1871554766

Practice Locations (2)

1261 TRAVIS BLVD, SUITE 170

FAIRFIELD, CA 945334825

7072528407

3443 VILLA LN, SUITE 6

NAPA, CA 945586417

7072528407

Source: CMS National Downloadable File, September 2026.

STEVEN TOLKAN, MD | HealthCareAtlasUSA