Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Nathan S Hahn, MD

Anesthesiology Physician in Waterloo, IA · enumerated 2006.

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

National Provider Identifier

1104806280

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Registry record

Entity type Individual (Type 1)

Name Dr. Nathan S Hahn

Credential MD

Sex Male

Practice address 3421 W 9th St, Waterloo, IA, 50702

Phone (319) 272-5000

Fax (319) 272-5264

Enumeration date Jan 17, 2006

Last updated in NPPES Dec 28, 2016

Taxonomy & licenses

207L00000X Anesthesiology Physician Allopathic & Osteopathic Physicians · License 2004010782 (MO) Secondary

207L00000X Anesthesiology Physician Allopathic & Osteopathic Physicians · License MD-43977 (IA) 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
201643301	Medicaid	MO	-

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

How do I verify Nathan Hahn's NPI record?

Cross-check NPI 1104806280 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1104806280 active?

Yes, as of the latest NPPES snapshot, NPI 1104806280 is active (record last updated 2016-12-28).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2016-12-28.