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Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. David B Hahn, M.D.

Orthopaedic Surgery Physician in Denver, CO · enumerated 2005.

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

National Provider Identifier

1265413710

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Registry record

Entity type Individual (Type 1)
Name Dr. David B Hahn
Credential M.D.
Sex Male
Practice address 1601 E 19th Ave, Suite 3300, Denver, CO, 80218
Fax (303) 837-0075
Enumeration date Nov 10, 2005
Last updated in NPPES Feb 1, 2022

Taxonomy & licenses

207X00000X Orthopaedic Surgery Physician Allopathic & Osteopathic Physicians · License 22255 (CO) 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
87106264 Medicaid NM -
100127400E Medicaid KS -
1245556091 Medicaid NE -
1265413710 Medicaid WY -
01222553 Medicaid CO -

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 David Hahn?
David Hahn is registered in NPPES with the primary taxonomy of Orthopaedic Surgery 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 2022-02-01.