Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Marcelle Mahan, M.D.

General Practice Physician in Eureka, CA · enumerated 2006.

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

National Provider Identifier

1245292085

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Registry record

Entity type Individual (Type 1)

Name Marcelle Mahan

Credential M.D.

Sex Female

Practice address Eureka, CA, 95501

Phone (707) 269-4250

Enumeration date Apr 5, 2006

Last updated in NPPES Mar 29, 2021

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

207P00000X Emergency Medicine Physician Allopathic & Osteopathic Physicians · License G71860 (CA) Secondary

208D00000X General Practice Physician Allopathic & Osteopathic Physicians · License G078160 (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
00G718600	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.

Read the full guide → Validate an NPI →

Frequently asked questions

Is NPI 1245292085 active?

Yes, as of the latest NPPES snapshot, NPI 1245292085 is active (record last updated 2021-03-29).

How do I verify Marcelle Mahan's NPI record?

Cross-check NPI 1245292085 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2021-03-29.