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

Melanie Gail Hayden Gephart, MD

Neurological Surgery Physician in Stanford, CA · enumerated 2008.

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

National Provider Identifier

1518125210

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Registry record

Entity type Individual (Type 1)

Name Melanie Gail Hayden Gephart

Credential MD

Sex Female

Practice address Stanford, CA, 94305

Phone (650) 723-5575

Enumeration date May 29, 2008

Last updated in NPPES Apr 26, 2024

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

Taxonomy & licenses

207T00000X Neurological Surgery Physician Allopathic & Osteopathic Physicians · License A105004 (CA) Primary

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

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

What is the NPI number for Melanie Hayden Gephart?

The National Provider Identifier (NPI) for Melanie Hayden Gephart is 1518125210, a Type 1 (individual) record in the CMS NPPES registry.

Where does Melanie Hayden Gephart practice?

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

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2024-04-26.