Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Davis Milford Hahn, MD

Specialist in Baltimore, MD · enumerated 2006.

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

National Provider Identifier

1083641500

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Registry record

Entity type Individual (Type 1)

Name Dr. Davis Milford Hahn

Credential MD

Sex Male

Practice address 5601 Loch Raven Blvd, Ste 103, Baltimore, MD, 21239

Phone (443) 444-3991

Fax (443) 444-3998

Enumeration date Jun 28, 2006

Last updated in NPPES Jun 10, 2008

Taxonomy & licenses

174400000X Specialist Other Service Providers · License D0020396 (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
110045582	Other	MD	RAILROAD MEDICARE
200461500	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 Davis Hahn?

Davis Hahn is registered in NPPES with the primary taxonomy of Specialist. 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 2008-06-10.