Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Sharon M. Geaghan, M.D.

Anatomic Pathology & Clinical Pathology Physician in Stanford, CA · enumerated 2007.

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

National Provider Identifier

1922149756

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Registry record

Entity type Individual (Type 1)

Name Dr. Sharon M. Geaghan

Credential M.D.

Sex Female

Practice address 300 Pasteur Dr Rm L235, Department of Pathology, Stanford, CA, 94305

Phone (650) 723-7211

Fax (650) 725-7409

Enumeration date Feb 12, 2007

Last updated in NPPES Jul 8, 2007

Taxonomy & licenses

207ZP0102X Anatomic Pathology & Clinical Pathology Physician Allopathic & Osteopathic Physicians · License G60618 (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
00G606180	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

What is the NPI number for Sharon Geaghan?

The National Provider Identifier (NPI) for Sharon Geaghan is 1922149756, a Type 1 (individual) record in the CMS NPPES registry.

Where does Sharon Geaghan practice?

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

Other providers at this practice address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-08.