Medical emergency?Emergency? Call 911. Nearest emergency roomsNearest ERs

Internal Medicine

Allison Johnson, MD

Works at hospitals in Rogers, AR · Fayetteville, AR · Arkansas

Summary

Allison Johnson, MD (Internal Medicine) is listed by Medicare at 2 hospitals in Rogers, AR and Fayetteville, AR. NPI 1770683641. 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 Allison Johnson, 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

Internal MedicinePrimary specialty
YesAccepts Medicare assignment
23Years since medical school (graduated 2003)
University Of Arkansas College Of MedicineMedical school
FemaleGender (as listed)
Washington Regional Medical SystemGroup practice

Quick answers

Which hospitals does Allison Johnson work at?
Medicare's official clinician data lists Allison Johnson at 2 hospitals: Mercy Hospital Northwest Arkansas and Washington Regional Medical Center. This is where the clinician works or has privileges; call the hospital to confirm.
Where does Allison Johnson see patients?
Medicare's clinician data lists 1 practice location in Springdale, AR. Call before your visit to confirm the address.
What is Allison Johnson's specialty?
Medicare lists Internal Medicine as the primary specialty.
Does Allison Johnson accept Medicare assignment?
Yes. Medicare's clinician data says Allison Johnson 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 Allison Johnson?
(479) 463-2333, as listed in official Medicare / NPI Registry data.
What is Allison Johnson's NPI number?
1770683641. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Hospitals where Allison Johnson works

Medicare's Facility Affiliation Data lists Allison Johnson 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 Allison Johnson is enrolled with Medicare (CMS data updated 2026-10-02).

Group practices

Medicare enrollment lists Allison Johnson as a member of this group (CMS data updated 2026-10-02).

  • Washington Regional Medical System238 clinicians in the group

Specialties

Find other Internal Medicine doctors in Arkansas →

Other internal medicine doctors in Springdale

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

All internal medicine doctors in Springdale →

Clinician information

CredentialMD
Medical schoolUniversity Of Arkansas College Of Medicine
Graduation year2003
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1770683641
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