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

Derek C. Abbassi, MD

Individual provider Obstetrics & Gynecology Physician · NPI 1841364155

Derek C. Abbassi, MD is an Obstetrics & Gynecology Physician in Walnut Creek, California. Licensed in California. Registered with an NPI since 2006.

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

1425 S Main St
Walnut Creek, CA 94596-5318
Phone: (925) 295-4000
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Obstetrics & Gynecology Physician (primary) Taxonomy 207V00000X · Licence A63678 (CA)

Record details

NPI number1841364155
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedNovember 20, 2006
Last updated in NPPESJuly 8, 2007
Mailing address1800 Harrison St Fl 7, Oakland, CA 94612-3429

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