Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Richard K. Zercher, MD

Geriatric Medicine (Family Medicine) Physician in San Francisco, CA · enumerated 2007.

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

National Provider Identifier

1902938939

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Registry record

Entity type Individual (Type 1)

Name Dr. Richard K. Zercher

Credential MD

Sex Male

Practice address 333 Turk St, No of Market Sr. Svcs - Curry Sr. Center, San Francisco, CA, 94102

Phone (415) 292-1041

Fax (415) 885-2344

Enumeration date Mar 13, 2007

Last updated in NPPES Jan 12, 2012

Taxonomy & licenses

207QG0300X Geriatric Medicine (Family Medicine) Physician Allopathic & Osteopathic Physicians · License C42569 (CA) Primary

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
021428	Other	-	SFGH INTERNAL USE ONLY-COMMERCIAL NUMBER

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.

Read the full guide → Validate an NPI →

Frequently asked questions

Where does Richard Zercher practice?

The practice location on file with NPPES is in San Francisco, CA. Providers can have multiple locations; NPPES lists the primary practice address.

What is the NPI number for Richard Zercher?

The National Provider Identifier (NPI) for Richard Zercher is 1902938939, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2012-01-12.