Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Michael J Hagg, M.D.

Urology Physician in Wynnewood, PA · enumerated 2006.

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

National Provider Identifier

1477518991

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Registry record

Entity type Individual (Type 1)

Name Michael J Hagg

Credential M.D.

Sex Male

Practice address 100 E Lancaster Ave, 361 Lankenau Medical Building East, Wynnewood, PA, 19096

Phone (610) 649-6420

Fax (610) 649-4689

Enumeration date Apr 18, 2006

Last updated in NPPES Dec 4, 2009

Taxonomy & licenses

208800000X Urology Physician Allopathic & Osteopathic Physicians · License MD057522L (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

Is NPI 1477518991 active?

Yes, as of the latest NPPES snapshot, NPI 1477518991 is active (record last updated 2009-12-04).

How do I verify Michael Hagg's NPI record?

Cross-check NPI 1477518991 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2009-12-04.