Quick answers
- Which hospitals does Kenneth S. Johnson work at?
- Medicare's official clinician data lists Kenneth S. Johnson at 2 hospitals: Mercy Health Saint Mary's and Spectrum Health. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Kenneth S. Johnson see patients?
- Medicare's clinician data lists 2 practice locations, including Grand Rapids, MI. Call before your visit to confirm the address.
- What is Kenneth S. Johnson's specialty?
- Medicare lists Emergency Medicine as the primary specialty, and also Addiction Medicine.
- Does Kenneth S. Johnson accept Medicare assignment?
- Yes. Medicare's clinician data says Kenneth S. Johnson 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 Kenneth S. Johnson's NPI number?
- 1558378265. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Kenneth S. Johnson works
Medicare's Facility Affiliation Data lists Kenneth S. Johnson at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Mercy Health Saint Mary'sGrand Rapids, MI · Acute Care Hospital · CCN 230059
- Spectrum HealthGrand Rapids, MI · Acute Care Hospital · CCN 230038
Practice locations
Addresses where Kenneth S. Johnson is enrolled with Medicare (CMS data updated 2026-10-02).
- 5060 Cascade Rd, Suite AGrand Rapids, MI 49546
- 5060 Cascade Rd SE, Suite AGrand Rapids, MI 49546
Group practices
Medicare enrollment lists Kenneth S. Johnson as a member of these groups (CMS data updated 2026-10-02).
- Center for Physical Rehabilitation and Therapy LP369 clinicians in the group
- Center for Physical Rehabilitation Inc357 clinicians in the group
Specialties
- Emergency Medicineprimary
- Addiction Medicinealso
Other emergency 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 | 1991 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1558378265 |
| 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