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

Dr. Deborah A Greer, MD

Individual provider Family Medicine Physician · NPI 1003851858

Dr. Deborah A Greer, MD is a Family Practice in Walnut Creek, California. Graduated from University of California, Davis School of Medicine in 1996, 30 years ago. Practices with John Muir Physician Network, a 486-clinician group and accepts Medicare assignment. Licensed in California.

Years since qualifying
30
Trained at
University of California, Davis 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

1450 Treat Blvd Ste 160
Walnut Creek, CA 94597-2168
Phone: (925) 296-9000
Fax: (925) 296-9071
Show map & directions

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

Specialties & licences

Family Medicine Physician (primary) Taxonomy 207Q00000X · Licence A64667 (CA)

Record details

NPI number1003851858
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorNo
NPI enumeratedJune 17, 2006
Last updated in NPPESApril 2, 2014

Medicare enrollment

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

Medicare specialtyFAMILY PRACTICE
Medical schoolUNIVERSITY OF CALIFORNIA, DAVIS SCHOOL OF MEDICINE
Graduated 1996 (30 years in practice)
Group practice John Muir Physician Network — 486 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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