Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Charles M Eichler, MD

Surgery Physician in San Francisco, CA · enumerated 2006.

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

National Provider Identifier

1265498729

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Registry record

Entity type Individual (Type 1)

Name Dr. Charles M Eichler

Credential MD

Sex Male

Practice address 400 Parnassus Ave, San Francisco, CA, 94143

Phone (415) 353-2357

Fax (415) 353-2669

Enumeration date Apr 25, 2006

Last updated in NPPES Jun 30, 2026

Taxonomy & licenses

208600000X Surgery Physician Allopathic & Osteopathic Physicians · License G39626 (CA) Primary

2086S0129X Vascular Surgery Physician Allopathic & Osteopathic Physicians · License G39626 (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
00G396260	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

Where does Charles Eichler 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 Charles Eichler?

The National Provider Identifier (NPI) for Charles Eichler is 1265498729, 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 2026-06-30.