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Emergency Medicine

Ryan Sullivan, DO

Works at hospitals in Fort Smith, AR · Sallisaw, OK · Arkansas, Oklahoma

Summary

Ryan Sullivan, DO (Emergency Medicine) is listed by Medicare at 3 hospitals in Fort Smith, AR and Sallisaw, OK. NPI 1801029657. Medicare data says the clinician accepts Medicare assignment. Source: CMS Facility Affiliation Data, updated 2026-10-02.

From official Medicare data

This page shows what Medicare's official clinician data says about Ryan Sullivan, joined by NPI number (data updated 2026-10-02). It is not a recommendation or a rating. Call the office or hospital to confirm before you go.

In a medical emergency, call 911.

At a glance

Emergency MedicinePrimary specialty
YesAccepts Medicare assignment
18Years since medical school (graduated 2008)
Pacific University - College Of OptometryMedical school
MaleGender (as listed)
Southeastern Emergency Physicians LLCGroup practice (+2 more)

Quick answers

Which hospitals does Ryan Sullivan work at?
Medicare's official clinician data lists Ryan Sullivan at 3 hospitals: Baptist Health - Fort Smith, Mercy Hospital Fort Smith and Sequoyah County-City of Sallisaw Hospital Authorit…. This is where the clinician works or has privileges; call the hospital to confirm.
Where does Ryan Sullivan see patients?
Medicare's clinician data lists 4 practice locations, including Fort Smith, AR, Conway, AR and Van Buren, AR. Call before your visit to confirm the address.
What is Ryan Sullivan's specialty?
Medicare lists Emergency Medicine as the primary specialty.
Does Ryan Sullivan accept Medicare assignment?
Yes. Medicare's clinician data says Ryan Sullivan accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of 2026-10-02. Ask the office to confirm before your visit.
What is the phone number for Ryan Sullivan?
(479) 441-4000, as listed in official Medicare / NPI Registry data.
What is Ryan Sullivan's NPI number?
1801029657. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Hospitals where Ryan Sullivan works

Medicare's Facility Affiliation Data lists Ryan Sullivan at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.

Practice locations

Addresses where Ryan Sullivan is enrolled with Medicare (CMS data updated 2026-10-02).

Group practices

Medicare enrollment lists Ryan Sullivan as a member of these groups (CMS data updated 2026-10-02).

  • Southeastern Emergency Physicians LLC784 clinicians in the group
  • Greenbrier Emergency Services, Inc.54 clinicians in the group
  • Hospital Care Consultants Inc25 clinicians in the group

Specialties

Find other Emergency Medicine doctors in Arkansas →

Other emergency medicine doctors in Fort Smith

Clinicians with the same Medicare primary specialty in Fort Smith, AR — not a recommendation.

All emergency medicine doctors in Fort Smith →

Clinician information

CredentialDO
Medical schoolPacific University - College Of Optometry
Graduation year2008
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1801029657
CorrectionsReport an error or suggest an update →

Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.

Sources

  1. Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated 2026-10-02, retrieved 2026-10-29
  2. National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
  3. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  4. Medicare Care Compare — official Medicare tool to look up clinicians