Quick answers
- Which hospitals does John E. Sisson work at?
- Medicare's official clinician data lists John E. Sisson at 2 hospitals: Corewell Health Pennock Hospital and Spectrum Health. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does John E. Sisson see patients?
- Medicare's clinician data lists 3 practice locations, including Grand Rapids, MI. Call before your visit to confirm the address.
- What is John E. Sisson's specialty?
- Medicare lists Internal Medicine as the primary specialty.
- Does John E. Sisson accept Medicare assignment?
- Yes. Medicare's clinician data says John E. Sisson 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.
- Does John E. Sisson offer telehealth?
- Medicare's clinician data says John E. Sisson offers telehealth services. Ask the office which visits can be done by video or phone.
- What is the phone number for John E. Sisson?
- (616) 391-1774, as listed in official Medicare / NPI Registry data.
- What is John E. Sisson's NPI number?
- 1548780596. 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 E. Sisson works
Medicare's Facility Affiliation Data lists John E. Sisson at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Corewell Health Pennock HospitalHastings, MI · Critical Access Hospital · CCN 231339
- Spectrum HealthGrand Rapids, MI · Acute Care Hospital · CCN 230038
Practice locations
Addresses where John E. Sisson is enrolled with Medicare (CMS data updated 2026-10-02).
- 100 Michigan Ave NEGrand Rapids, MI 49503 (616) 391‑1774
- 100 Michigan St Northeast, Corewell Health Grand Rapids HospitGrand Rapids, MI 49503 (616) 391‑1774
- 275 Michigan St NEGrand Rapids, MI 49503 (616) 391‑3777
Group practices
Medicare enrollment lists John E. Sisson as a member of this group (CMS data updated 2026-10-02).
- Spectrum Health Hospitals160 clinicians in the group
Specialties
- Internal Medicineprimary
Other internal medicine doctors in Grand Rapids
Clinicians with the same Medicare primary specialty in Grand Rapids, MI — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Wayne State University School Of Medicine |
| Graduation year | 2017 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1548780596 |
| 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