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

DIRK R DIEFENDORF, MD

ORTHOPEDIC SURGERY

Medical school: NORTHWESTERN UNIVERSITY FEINBERG MEDICAL SCHOOL

Graduated: 1983

NPI: 1467559443

Practice Locations (1)

101 S SAN MATEO DR, SUITE 212

SAN MATEO, CA 944013843

6503470517

Source: CMS National Downloadable File, September 2026.

DIRK DIEFENDORF, MD | HealthCareAtlasUSA