Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mario O Napoletano, MD

Family Medicine Physician in Chalfont, PA · enumerated 2006.

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

National Provider Identifier

1255366282

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Registry record

Entity type Individual (Type 1)

Name Mario O Napoletano

Credential MD

Sex Male

Practice address 1600 Horizon Dr, Suite 117, Chalfont, PA, 18914

Phone (215) 997-9737

Fax (215) 997-9738

Enumeration date Jul 11, 2006

Last updated in NPPES Jul 21, 2022

Taxonomy & licenses

207Q00000X Family Medicine Physician Allopathic & Osteopathic Physicians · License MD064054 (PA) 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 Mario Napoletano?

The National Provider Identifier (NPI) for Mario Napoletano is 1255366282, a Type 1 (individual) record in the CMS NPPES registry.

Where does Mario Napoletano practice?

The practice location on file with NPPES is in Chalfont, PA. 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 2022-07-21.