Quick answers
- Which hospitals does Marty J. Mortimer work at?
- Medicare's official clinician data lists Marty J. Mortimer at 2 hospitals: Spectrum Health and Spectrum Health United Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Marty J. Mortimer see patients?
- Medicare's clinician data lists 5 practice locations, including Greenville, MI, East Grand Rapids, MI and Grand Rapids, MI. Call before your visit to confirm the address.
- What is Marty J. Mortimer's specialty?
- Medicare lists Physician Assistant as the primary specialty.
- Does Marty J. Mortimer accept Medicare assignment?
- Yes. Medicare's clinician data says Marty J. Mortimer 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 Marty J. Mortimer offer telehealth?
- Medicare's clinician data says Marty J. Mortimer offers telehealth services. Ask the office which visits can be done by video or phone.
- What is the phone number for Marty J. Mortimer?
- (616) 391-4600, as listed in official Medicare / NPI Registry data.
- What is Marty J. Mortimer's NPI number?
- 1689732810. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Marty J. Mortimer works
Medicare's Facility Affiliation Data lists Marty J. Mortimer at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Spectrum HealthGrand Rapids, MI · Acute Care Hospital · CCN 230038
- Spectrum Health United HospitalGreenville, MI · Acute Care Hospital · CCN 230035
Practice locations
Addresses where Marty J. Mortimer is enrolled with Medicare (CMS data updated 2026-10-02).
- 1202 W Oak StGreenville, MI 48838
- 2249 Wealthy St SE, 110 Corewell Health Medical Group WestEast Grand Rapids, MI 49506 (616) 391‑4600
- 4100 Lake Dr SEGrand Rapids, MI 49546
- 4444 Kalamazoo Ave SE, 200 Corewell Health Medical Group WestKentwood, MI 49508 (616) 391‑5600
- 8501 Meadow CrkRockford, MI 49341
Group practices
Medicare enrollment lists Marty J. Mortimer as a member of these groups (CMS data updated 2026-10-02).
- Spectrum Health Primary Care Partners2,294 clinicians in the group
- Spectrum Health United92 clinicians in the group
Specialties
- Physician Assistantprimary
Other physician assistants in Greenville
Clinicians with the same Medicare primary specialty in Greenville, MI — not a recommendation.
Clinician information
| Credential | PA |
|---|---|
| Graduation year | 2002 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1689732810 |
| 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