Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Steven Charles San Filippo, M.D.

Family Medicine Physician in Somerset, NJ · enumerated 2013.

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

National Provider Identifier

1578991840

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Registry record

Entity type Individual (Type 1)

Name Dr. Steven Charles San Filippo

Credential M.D.

Sex Male

Practice address 1303 State Route 27, Somerset, NJ, 08873

Phone (732) 249-1500

Fax (732) 249-8749

Enumeration date Oct 24, 2013

Last updated in NPPES Nov 26, 2023

Taxonomy & licenses

207Q00000X Family Medicine Physician Allopathic & Osteopathic Physicians · License 25MA09779800 (NJ) 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 Steven San Filippo?

The National Provider Identifier (NPI) for Steven San Filippo is 1578991840, a Type 1 (individual) record in the CMS NPPES registry.

Where does Steven San Filippo practice?

The practice location on file with NPPES is in Somerset, NJ. 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 2023-11-26.