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Stephen Diamantoni & Associates Family Practice PC

Family Medicine Physician in Lancaster, PA · enumerated 2006 · authorized official Stephen Diamantoni, President.

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

National Provider Identifier

1528132610

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Registry record

Entity type Organization (Type 2)
Legal business name Stephen Diamantoni & Associates Family Practice PC
Practice address 734 N Franklin St, Lancaster, PA, 17602
Phone (717) 295-7109
Fax (717) 295-7294
Enumeration date Nov 20, 2006
Last updated in NPPES Jul 17, 2026

Taxonomy & classification

207Q00000X Family Medicine Physician Allopathic & Osteopathic Physicians · License MD029374E (PA) Primary

Authorized official

Name Stephen Diamantoni
Title President
Phone (717) 295-2323

Other identifiers

Identifier Type State Issuer
1007677260004 Medicaid PA -

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 a Type 2 NPI?
A Type 2 NPI identifies an organization (group practice, hospital, pharmacy, lab), while Type 1 NPIs identify individual providers. Organizations bill under their Type 2 NPI.
What type of organization is Stephen Diamantoni & Associates Family Practice PC?
Stephen Diamantoni & Associates Family Practice PC is registered in NPPES as a Family Medicine Physician (its primary provider taxonomy).

Providers at this address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2026-07-17.