Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Patrick J Dennis, M.D.

Urology Physician in Hagerstown, MD · enumerated 2006.

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

National Provider Identifier

1932140530

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Registry record

Entity type Individual (Type 1)

Name Patrick J Dennis

Credential M.D.

Sex Male

Practice address 11110 Medical Campus Rd, Suite 228, Hagerstown, MD, 21742

Phone (301) 733-0022

Fax (301) 733-3461

Enumeration date Jun 8, 2006

Last updated in NPPES Oct 4, 2023

Taxonomy & licenses

208800000X Urology Physician Allopathic & Osteopathic Physicians · License MD029594E (PA) Secondary

208800000X Urology Physician Allopathic & Osteopathic Physicians · License D38285 (MD) 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
543751200	Medicaid	MD	-

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 Patrick Dennis?

Patrick Dennis is registered in NPPES with the primary taxonomy of Urology 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.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2023-10-04.