Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Diana L. Farmer, MD

Surgery Physician in Sacramento, CA · enumerated 2006.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1033177167

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Registry record

Entity type Individual (Type 1)

Name Dr. Diana L. Farmer

Credential MD

Sex Female

Practice address 2221 Stockton Blvd., Cypress #3112, Sacramento, CA, 95817

Phone (916) 734-3190

Fax (916) 734-5119

Enumeration date May 1, 2006

Last updated in NPPES Mar 30, 2012

Taxonomy & licenses

208600000X Surgery Physician Allopathic & Osteopathic Physicians · License G62158 (CA) Primary

2086S0120X Pediatric Surgery Physician Allopathic & Osteopathic Physicians · License G62158 (CA) Secondary

2086X0206X Surgical Oncology Physician Allopathic & Osteopathic Physicians · License G62158 (CA) Secondary

MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

Other identifiers

Identifier	Type	State	Issuer
0G6215800	Medicaid	CA	-

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

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Frequently asked questions

Is this the official NPI registry?

No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.

What specialty is Diana Farmer?

Diana Farmer is registered in NPPES with the primary taxonomy of Surgery Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2012-03-30.