Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Theodore K Reahm, D.O.

Family Medicine Physician in Onaway, MI · enumerated 2006.

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

National Provider Identifier

1891740379

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Registry record

Entity type Individual (Type 1)

Name Theodore K Reahm

Credential D.O.

Sex Male

Practice address 3570 1/2 N Veterens Drive, Onaway, MI, 49765

Phone (989) 733-4045

Fax (989) 733-4046

Enumeration date May 23, 2006

Last updated in NPPES Apr 3, 2008

Taxonomy & licenses

207Q00000X Family Medicine Physician Allopathic & Osteopathic Physicians · License TR013953 (MI) Primary

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
0857124294	Other	MI	BLUE CARE NETWORK
P00342248	Other	MI	RAILROAD MEDICARE
0857124294	Other	MI	BCBS
4943535	Medicaid	MI	-

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

Is NPI 1891740379 active?

Yes, as of the latest NPPES snapshot, NPI 1891740379 is active (record last updated 2008-04-03).

How do I verify Theodore Reahm's NPI record?

Cross-check NPI 1891740379 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2008-04-03.