Quick answers
- Which hospitals does John A. Baker work at?
- Medicare's official clinician data lists John A. Baker at 5 hospitals: Cassia Regional Hospital, St Luke's Jerome, St Luke's Regional Medical Center, St Luke's Wood River Medical Center and St Lukes Magic Valley Medical Center. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does John A. Baker see patients?
- Medicare's clinician data lists 3 practice locations, including Twin Falls, ID. Call before your visit to confirm the address.
- What is John A. Baker's specialty?
- Medicare lists Internal Medicine as the primary specialty.
- Does John A. Baker accept Medicare assignment?
- Yes. Medicare's clinician data says John A. Baker 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 A. Baker?
- (208) 814-1500, as listed in official Medicare / NPI Registry data.
- What is John A. Baker's NPI number?
- 1124061262. 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 A. Baker works
Medicare's Facility Affiliation Data lists John A. Baker at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Cassia Regional HospitalBurley, ID · Critical Access Hospital · CCN 131326
- St Luke's JeromeJerome, ID · Critical Access Hospital · CCN 131310
- St Luke's Regional Medical CenterBoise, ID · Acute Care Hospital · CCN 130006
- St Luke's Wood River Medical CenterKetchum, ID · Critical Access Hospital · CCN 131323
- St Lukes Magic Valley Medical CenterTwin Falls, ID · Acute Care Hospital · CCN 130002
Practice locations
Addresses where John A. Baker is enrolled with Medicare (CMS data updated 2026-10-02).
- 2550 Addison Ave ETwin Falls, ID 83301
- 746 N College RdTwin Falls, ID 83301
- 775 Pole Line Rd WTwin Falls, ID 83301 (208) 814‑1500
Group practices
Medicare enrollment lists John A. Baker as a member of this group (CMS data updated 2026-10-02).
- St Lukes Clinic LLC316 clinicians in the group
Specialties
- Internal Medicineprimary
Other internal medicine doctors in Twin Falls
Clinicians with the same Medicare primary specialty in Twin Falls, ID — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of South Florida College Of Medicine |
| Graduation year | 1980 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1124061262 |
| 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