Quick answers
- Which hospitals does John A. Baker Iii work at?
- Medicare's official clinician data lists John A. Baker Iii at 1 hospital: Edward W Sparrow Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does John A. Baker Iii see patients?
- Medicare's clinician data lists 3 practice locations, including Lansing, MI. Call before your visit to confirm the address.
- What is John A. Baker Iii's specialty?
- Medicare lists Psychiatry as the primary specialty.
- Does John A. Baker Iii accept Medicare assignment?
- Yes. Medicare's clinician data says John A. Baker Iii 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 John A. Baker Iii's NPI number?
- 1548225519. 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 Iii works
Medicare's Facility Affiliation Data lists John A. Baker Iii at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Edward W Sparrow HospitalLansing, MI · Acute Care Hospital · CCN 230230
Practice locations
Addresses where John A. Baker Iii is enrolled with Medicare (CMS data updated 2026-10-02).
Group practices
Medicare enrollment lists John A. Baker Iii as a member of this group (CMS data updated 2026-10-02).
- Edward W Sparrow Hospital Association730 clinicians in the group
Specialties
- Psychiatryprimary
Other psychiatrists in Lansing
Clinicians with the same Medicare primary specialty in Lansing, MI — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Michigan State University College Of Human Medicine |
| Graduation year | 1987 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1548225519 |
| 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