Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.

Dr. John Michael Martinez, MD

Individual provider Sports Medicine (Family Medicine) Physician · NPI 1003844507

Dr. John Michael Martinez, MD is a Family Practice in Mill Valley, California. Graduated from Albany Medical College of Union University in 1996, 30 years ago. Practices with UCSF Health Medical Foundation, a 67-clinician group and accepts Medicare assignment. Licensed in California.

Years since qualifying
30
Trained at
Albany Medical College of Union University
Licensed in
CA
In the registry since
2006
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

750 Redwood Hwy Frontage Rd Ste 1204
Mill Valley, CA 94941-2483
Phone: (415) 384-4778
Fax: (415) 384-4779
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Sports Medicine (Family Medicine) Physician (primary) Taxonomy 207QS0010X · Licence A74529 (CA)

Record details

NPI number1003844507
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJune 30, 2006
Last updated in NPPESNovember 29, 2023
Certification dateNovember 29, 2023
Mailing address3400 Data Dr, Rancho Cordova, CA 95670-7956

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyFAMILY PRACTICE
Medical schoolALBANY MEDICAL COLLEGE OF UNION UNIVERSITY
Graduated 1996 (30 years in practice)
Group practice Ucsf Health Medical Foundation — 67 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations8 on file with Medicare

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