Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Michael David Vannatta, DO

Family Medicine Physician in Knoxville, IA · enumerated 2006 · practices at Knoxville Community Hospital Inc.

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

National Provider Identifier

1124035357

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Registry record

Entity type Individual (Type 1)

Name Michael David Vannatta

Credential DO

Sex Male

Practice address 1202 W Howard St, Knoxville, IA, 50138

Phone (641) 828-7211

Fax (641) 842-7030

Enumeration date Aug 1, 2006

Last updated in NPPES Jan 7, 2014

Taxonomy & licenses

207Q00000X Family Medicine Physician Allopathic & Osteopathic Physicians · License 02160 (IA) 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
45044	Other	IA	WELLMARK BC&BS IA
2039552	Medicaid	IA	-
3039552	Medicaid	IA	-
36316	Other	IA	WELLMARK BC&BS IA

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

Where does Michael Vannatta practice?

The practice location on file with NPPES is in Knoxville, IA. Providers can have multiple locations; NPPES lists the primary practice address.

What is the NPI number for Michael Vannatta?

The National Provider Identifier (NPI) for Michael Vannatta is 1124035357, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2014-01-07.