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

RYAN MCMAHAN, MD

GERIATRIC MEDICINE

Graduated: 2020

Also: INTERNAL MEDICINE

Offers telehealth

NPI: 1356978308

Practice Locations (3)

UNIVERSITY OF CALIFORNIA SFGH MEDICAL GROUP

1001 POTRERO AVE

SAN FRANCISCO, CA 941103518

6282064774

PERMANENTE MEDICAL GROUP INC

2425 GEARY BLVD

SAN FRANCISCO, CA 941153358

4158332200

REGENTS OF THE UNIVERSITY OF CALIFORNIA

505 PARNASSUS AVE

SAN FRANCISCO, CA 941432204

4154764029

Source: CMS National Downloadable File, September 2026.

RYAN MCMAHAN, MD | HealthCareAtlasUSA