Quick answers
- Which hospitals does Allan Coates work at?
- Medicare's official clinician data lists Allan Coates at 5 hospitals: Corewell Health Big Rapids Hospital, Corewell Health Gerber Hospital, Sheridan Community Hospital, Spectrum Health and Spectrum Health United Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Allan Coates see patients?
- Medicare's clinician data lists 3 practice locations, including Wyoming, MI and Harlingen, TX. Call before your visit to confirm the address.
- What is Allan Coates's specialty?
- Medicare lists Gastroenterology as the primary specialty, and also Internal Medicine.
- Does Allan Coates accept Medicare assignment?
- Yes. Medicare's clinician data says Allan Coates 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 Allan Coates?
- (616) 452-7099, as listed in official Medicare / NPI Registry data.
- What is Allan Coates's NPI number?
- 1972510378. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Allan Coates works
Medicare's Facility Affiliation Data lists Allan Coates at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Corewell Health Big Rapids HospitalBig Rapids, MI · Acute Care Hospital · CCN 230093
- Corewell Health Gerber HospitalFremont, MI · Critical Access Hospital · CCN 231338
- Sheridan Community HospitalSheridan, MI · Critical Access Hospital · CCN 231312
- Spectrum HealthGrand Rapids, MI · Acute Care Hospital · CCN 230038
- Spectrum Health United HospitalGreenville, MI · Acute Care Hospital · CCN 230035
Practice locations
Addresses where Allan Coates is enrolled with Medicare (CMS data updated 2026-10-02).
- 2093 Health Dr SW, Suite 201Wyoming, MI 49519 (616) 452‑7099
- 512 Victoria Ln, Suite 2Harlingen, TX 78550 (956) 365‑4400
- 720 N 77 SunshinestripHarlingen, TX 78550 (956) 365‑4400
Group practices
Medicare enrollment lists Allan Coates as a member of these groups (CMS data updated 2026-10-02).
- Gastroenterology Consultants of South Texas, PLLC42 clinicians in the group
- Gastroenterology Associates of Western Michigan PLC4 clinicians in the group
Specialties
- Gastroenterologyprimary
- Internal Medicinealso
Other gastroenterologists in Wyoming
Clinicians with the same Medicare primary specialty in Wyoming, MI — not a recommendation.
Clinician information
| Credential | DO |
|---|---|
| Graduation year | 1980 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1972510378 |
| 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