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

Individual provider Diagnostic Radiology Physician · NPI 1396780425

Dr. Jonathan Posin, MD is a Diagnostic Radiology in Walnut Creek, California. Graduated from Boston University School of Medicine in 1979, 47 years ago. Practices with University of California Sfgh Medical Group, a 571-clinician group. Licensed in California.

Years since qualifying
47
Trained at
Boston University School of Medicine
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

2125 Oak Grove Rd #200
Walnut Creek, CA 94598-2536
Phone: (925) 296-7150
Fax: (925) 296-7171
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Diagnostic Radiology Physician (primary) Taxonomy 2085R0202X · Licence G47350 (CA)

Record details

NPI number1396780425
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJune 20, 2006
Last updated in NPPESApril 2, 2015

Medicare enrollment

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

Medicare specialtyDIAGNOSTIC RADIOLOGY
Medical schoolBOSTON UNIVERSITY SCHOOL OF MEDICINE
Graduated 1979 (47 years in practice)
Group practice University Of California Sfgh Medical Group — 571 clinicians
Accepts Medicare assignment Not indicated
Practice locations5 on file with Medicare

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