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

JEFFREY D KLAUSNER, MD

INFECTIOUS DISEASE

Medical school: JS WEILL MEDICAL COLLEGE, CORNELL UNIVERSITY

Graduated: 1991

Offers telehealth

NPI: 1508973249

Practice Locations (5)

BASS MEDICAL GROUP

1505 SAINT ALPHONSUS WAY

ALAMO, CA 945071570

9259326330

BASS MEDICAL GROUP

201 DOLORES AVE

SAN LEANDRO, CA 945775007

5109842489

BASS MEDICAL GROUP

2637 SHADELANDS DR

Walnut Creek, CA 945982512

BASS MEDICAL GROUP

2637 SHADELANDS DR

WALNUT CREEK, CA 945982512

9253784512

BASS MEDICAL GROUP

365 LENNON LN

WALNUT CREEK, CA 945985915

Source: CMS National Downloadable File, September 2026.

JEFFREY KLAUSNER, MD | HealthCareAtlasUSA