Quick answers
- Which hospitals does Keith R. Baker work at?
- Medicare's official clinician data lists Keith R. Baker at 2 hospitals: Henry Ford Allegiance Health and Hillsdale Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Keith R. Baker see patients?
- Medicare's clinician data lists 2 practice locations, including Hillsdale, MI. Call before your visit to confirm the address.
- What is Keith R. Baker's specialty?
- Medicare lists Internal Medicine as the primary specialty.
- Does Keith R. Baker accept Medicare assignment?
- Yes. Medicare's clinician data says Keith R. 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 Keith R. Baker?
- (517) 439-0200, as listed in official Medicare / NPI Registry data.
- What is Keith R. Baker's NPI number?
- 1538271267. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Keith R. Baker works
Medicare's Facility Affiliation Data lists Keith R. Baker at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Henry Ford Allegiance HealthJackson, MI · Acute Care Hospital · CCN 230092
- Hillsdale HospitalHillsdale, MI · Acute Care Hospital · CCN 230037
Practice locations
Addresses where Keith R. Baker is enrolled with Medicare (CMS data updated 2026-10-02).
- 1456 Hudson RdHillsdale, MI 49242 (517) 439‑0200
- 168 S Howell StHillsdale, MI 49242 (517) 437‑4451
Group practices
Medicare enrollment lists Keith R. Baker as a member of this group (CMS data updated 2026-10-02).
- Hillsdale Community Health Center68 clinicians in the group
Specialties
- Internal Medicineprimary
Other internal medicine doctors in Hillsdale
Clinicians with the same Medicare primary specialty in Hillsdale, MI — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Wayne State University School Of Medicine |
| Graduation year | 1978 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1538271267 |
| 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