Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Seth Lawrence Matarasso, MD

Specialist in San Francisco, CA · enumerated 2006.

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

National Provider Identifier

1992882948

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Registry record

Entity type Individual (Type 1)

Name Seth Lawrence Matarasso

Credential MD

Sex Male

Practice address 490 Post Street, #700, San Francisco, CA, 94102

Phone (415) 362-2238

Fax (415) 362-7745

Enumeration date Nov 1, 2006

Last updated in NPPES Feb 13, 2013

Taxonomy & licenses

174400000X Specialist Other Service Providers · License A45304 (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 Seth Matarasso?

The National Provider Identifier (NPI) for Seth Matarasso is 1992882948, a Type 1 (individual) record in the CMS NPPES registry.

Where does Seth Matarasso practice?

The practice location on file with NPPES is in San Francisco, 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 2013-02-13.