Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Brian John Walsh, D.O.

Pulmonary Disease Physician in Dover, DE · enumerated 2005 · practices at Dover Pulmonary, P.A..

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

National Provider Identifier

1851373823

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Registry record

Entity type Individual (Type 1)

Name Brian John Walsh

Credential D.O.

Sex Male

Practice address 150 Brandywine Dr, Dover, DE, 19904

Phone (302) 734-0400

Fax (302) 406-2914

Enumeration date Nov 16, 2005

Last updated in NPPES Mar 28, 2025

Taxonomy & licenses

207RP1001X Pulmonary Disease Physician Allopathic & Osteopathic Physicians · License C20003705 (DE) Primary

207RP1001X Pulmonary Disease Physician Allopathic & Osteopathic Physicians · License 20955-875 (WI) Secondary

DO · Doctor of Osteopathic Medicine: A fully licensed physician trained in osteopathic medical schools, with the same practice rights as an MD. About the DO credential

Other identifiers

Identifier	Type	State	Issuer
0000318903	Medicaid	DE	-

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.

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Frequently asked questions

Is NPI 1851373823 active?

Yes, as of the latest NPPES snapshot, NPI 1851373823 is active (record last updated 2025-03-28).

How do I verify Brian Walsh's NPI record?

Cross-check NPI 1851373823 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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Dover Pulmonary, P.A. Pulmonary Disease Physician · Dover, DE NPI 1093797078

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-03-28.