Quick answers
- Which hospitals does Cheryl A. Johnstone work at?
- Medicare's official clinician data lists Cheryl A. Johnstone at 4 hospitals: Ascension Providence Hospital, Southfield and Novi…, St Joe Mercy Hospital System Livonia, Trinity Health Ann Arbor Hospital and University of Michigan Health System. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Cheryl A. Johnstone see patients?
- Medicare's clinician data lists 1 practice location in Northville, MI. Call before your visit to confirm the address.
- What is Cheryl A. Johnstone's specialty?
- Medicare lists Internal Medicine as the primary specialty.
- Does Cheryl A. Johnstone accept Medicare assignment?
- Medicare's clinician data says Cheryl A. Johnstone may accept Medicare assignment (as of 2026-10-02). Ask the office whether they accept it for your visit.
- Does Cheryl A. Johnstone offer telehealth?
- Medicare's clinician data says Cheryl A. Johnstone offers telehealth services. Ask the office which visits can be done by video or phone.
- What is Cheryl A. Johnstone's NPI number?
- 1629097530. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Cheryl A. Johnstone works
Medicare's Facility Affiliation Data lists Cheryl A. Johnstone at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Ascension Providence Hospital, Southfield and Novi…Southfield, MI · Acute Care Hospital · CCN 230019
- St Joe Mercy Hospital System LivoniaLivonia, MI · Acute Care Hospital · CCN 230002
- Trinity Health Ann Arbor HospitalAnn Arbor, MI · Acute Care Hospital · CCN 230156
- University of Michigan Health SystemAnn Arbor, MI · Acute Care Hospital · CCN 230046
Practice locations
Addresses where Cheryl A. Johnstone is enrolled with Medicare (CMS data updated 2026-10-02).
- 308 S Main StNorthville, MI 48167
Specialties
- Internal Medicineprimary
Other internal medicine doctors in Northville
Clinicians with the same Medicare primary specialty in Northville, MI — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Wright State University Boonshoft School Of Medicine |
| Graduation year | 1993 |
| Gender (as listed) | Female |
| Medicare assignment | May accept for some services |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1629097530 |
| 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