Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Ryan Sullivan, D.O.

Emergency Medicine Physician in Fort Smith, AR · enumerated 2009.

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

National Provider Identifier

1801029657

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Registry record

Entity type Individual (Type 1)

Name Ryan Sullivan

Credential D.O.

Sex Male

Practice address Fort Smith, AR, 72903

Phone (479) 314-6241

Fax (479) 452-0275

Enumeration date Aug 27, 2009

Last updated in NPPES Dec 2, 2022

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

207P00000X Emergency Medicine Physician Allopathic & Osteopathic Physicians · License E-8248 (AR) Primary

207P00000X Emergency Medicine Physician Allopathic & Osteopathic Physicians · License 4817 (OK) Secondary

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

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 Ryan Sullivan practice?

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

What is the NPI number for Ryan Sullivan?

The National Provider Identifier (NPI) for Ryan Sullivan is 1801029657, a Type 1 (individual) record in the CMS NPPES registry.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2022-12-02.