Quick answers
- Which hospitals does John R. Larson work at?
- Medicare's official clinician data lists John R. Larson at 1 hospital: White River Medical Center. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does John R. Larson see patients?
- Medicare's clinician data lists 3 practice locations, including Little Rock, AR and Batesville, AR. Call before your visit to confirm the address.
- What is John R. Larson's specialty?
- Medicare lists Anesthesiology as the primary specialty.
- Does John R. Larson accept Medicare assignment?
- Yes. Medicare's clinician data says John R. Larson 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 John R. Larson?
- (870) 262-6155, as listed in official Medicare / NPI Registry data.
- What is John R. Larson's NPI number?
- 1104864354. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where John R. Larson works
Medicare's Facility Affiliation Data lists John R. Larson at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- White River Medical CenterBatesville, AR · Acute Care Hospital · CCN 040119
Practice locations
Addresses where John R. Larson is enrolled with Medicare (CMS data updated 2026-10-02).
- 108 N Shackeford RdLittle Rock, AR 72211
- 1700 Harrison St, Suite TBatesville, AR 72501 (870) 262‑6155
- 1710 Harrison StBatesville, AR 72501
Group practices
Medicare enrollment lists John R. Larson as a member of these groups (CMS data updated 2026-10-02).
- White River Health System, Inc.186 clinicians in the group
- Pain Treatment Centers of America PLLC75 clinicians in the group
Specialties
- Anesthesiologyprimary
Other anesthesiologists in Little Rock
Clinicians with the same Medicare primary specialty in Little Rock, AR — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Jefferson Medical College Of Thomas Jefferson University |
| Graduation year | 1985 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1104864354 |
| Corrections | Report 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
- Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated 2026-10-02, retrieved 2026-10-29
- National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians