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

Dr. Steven Charles Posson, D.O.

Family Medicine Physician in Pacific Grove, CA · enumerated 2005.

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

National Provider Identifier

1376531897

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Registry record

Entity type Individual (Type 1)

Name Dr. Steven Charles Posson

Credential D.O.

Sex Male

Practice address Pacific Grove, CA, 93950

Phone (805) 441-2720

Enumeration date Oct 10, 2005

Last updated in NPPES Aug 13, 2012

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

Taxonomy & licenses

207Q00000X Family Medicine Physician Allopathic & Osteopathic Physicians · License 20A6674 (CA) Primary

DO · Doctor of Osteopathic Medicine: A fully licensed physician trained in osteopathic medical schools, with the same practice rights as an MD. About the DO credential

Other identifiers

Identifier	Type	State	Issuer
020A66740	Other	CA	BLUE SHIELD PROV. #

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 Steven Posson practice?

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

What is the NPI number for Steven Posson?

The National Provider Identifier (NPI) for Steven Posson is 1376531897, a Type 1 (individual) record in the CMS NPPES registry.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2012-08-13.