Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Timothy J Ryan, D.O.

Internal Medicine Physician in Marshall, MO · enumerated 2006.

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

National Provider Identifier

1790721520

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Registry record

Entity type Individual (Type 1)

Name Dr. Timothy J Ryan

Credential D.O.

Sex Male

Practice address 2303 S Highway 65, Marshall, MO, 65340

Phone (660) 886-3364

Fax (660) 886-6044

Enumeration date Jun 21, 2006

Last updated in NPPES Jun 7, 2024

Taxonomy & licenses

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License 102684 (MO) 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
246948509	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 Timothy Ryan's NPI record?

Cross-check NPI 1790721520 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1790721520 active?

Yes, as of the latest NPPES snapshot, NPI 1790721520 is active (record last updated 2024-06-07).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2024-06-07.