Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Joseph J Irwin, MD

Family Medicine Physician in Ephrata, PA · enumerated 2006.

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

National Provider Identifier

1063522050

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Registry record

Entity type Individual (Type 1)

Name Joseph J Irwin

Credential MD

Sex Male

Practice address 1635 W Main St Ste 700, Ephrata, PA, 17522

Phone (717) 738-2468

Enumeration date Aug 30, 2006

Last updated in NPPES Mar 26, 2026

Taxonomy & licenses

207Q00000X Family Medicine Physician Allopathic & Osteopathic Physicians · License MD070015L (PA) Primary

MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

Other identifiers

Identifier	Type	State	Issuer
7690118	Other	PA	AETNA
50051251	Other	PA	BLUE CROSS
7690118	Other	PA	USH/HMO
P002430	Other	PW	GATEWAY
0017963180013	Medicaid	PA	-
870484	Other	PA	BLUE SHIELD

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 specialty is Joseph Irwin?

Joseph Irwin is registered in NPPES with the primary taxonomy of Family Medicine Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

Is this the official NPI registry?

No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2026-03-26.