Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Donald L. Wilhelm, M.D.

Internal Medicine Physician in Lake Ozark, MO · enumerated 2006.

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

National Provider Identifier

1184604910

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Registry record

Entity type Individual (Type 1)

Name Dr. Donald L. Wilhelm

Credential M.D.

Sex Male

Practice address 2221 Bagnell Dam Blvd, Lake Ozark, MO, 65049

Phone (573) 635-5264

Fax (573) 556-5757

Enumeration date Jan 18, 2006

Last updated in NPPES Oct 18, 2007

Taxonomy & licenses

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License 118054 (MO) Primary

207RP1001X Pulmonary Disease Physician Allopathic & Osteopathic Physicians · License 118054 (MO) Secondary

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
P00063177	Other	MO	MEDICARE RAILROAD
409684	Other	MO	HEALTHLINK
122237	Other	MO	BCBS
DA5571	Other	MO	RAILROAD GROUP

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

How do I verify Donald Wilhelm's NPI record?

Cross-check NPI 1184604910 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1184604910 active?

Yes, as of the latest NPPES snapshot, NPI 1184604910 is active (record last updated 2007-10-18).

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-10-18.