Quick answers
- Which hospitals does Mark E. Jacoby work at?
- Medicare's official clinician data lists Mark E. Jacoby at 5 hospitals: Corewell Health Big Rapids Hospital, Corewell Health Ludington Hospital, Corewell Health Pennock Hospital, Spectrum Health and Spectrum Health United Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Mark E. Jacoby see patients?
- Medicare's clinician data lists 22 practice locations, including Grand Rapids, MI, Hastings, MI and Muskegon, MI. Call before your visit to confirm the address.
- What is Mark E. Jacoby's specialty?
- Medicare lists Interventional Cardiology as the primary specialty, and also Cardiovascular Disease (Cardiology).
- Does Mark E. Jacoby accept Medicare assignment?
- Yes. Medicare's clinician data says Mark E. Jacoby 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 Mark E. Jacoby?
- (616) 267-0115, as listed in official Medicare / NPI Registry data.
- What is Mark E. Jacoby's NPI number?
- 1871544551. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Mark E. Jacoby works
Medicare's Facility Affiliation Data lists Mark E. Jacoby 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 Ludington HospitalLudington, MI · Acute Care Hospital · CCN 230110
- Corewell Health Pennock HospitalHastings, MI · Critical Access Hospital · CCN 231339
- Spectrum HealthGrand Rapids, MI · Acute Care Hospital · CCN 230038
- Spectrum Health United HospitalGreenville, MI · Acute Care Hospital · CCN 230035
Practice locations
Addresses where Mark E. Jacoby is enrolled with Medicare (CMS data updated 2026-10-02). The first 5 of 22; the Medicare profile lists all.
- 100 Michigan Ave NEGrand Rapids, MI 49503
- 100 Michigan St NE Rm, 280 Corewell Health Medical Group WestGrand Rapids, MI 49503 (616) 267‑0115
- 1005 W Green StHastings, MI 49058
- 1009 W Green St, Corewell Health Medical Group WestHastings, MI 49058 (269) 945‑1212
- 145 Michigan St NE, 4100 Corewell Health Medical Group WestGrand Rapids, MI 49503 (616) 486‑6314
Group practices
Medicare enrollment lists Mark E. Jacoby as a member of this group (CMS data updated 2026-10-02).
- Spectrum Health Primary Care Partners2,294 clinicians in the group
Specialties
Other interventional cardiologists in Grand Rapids
Clinicians with the same Medicare primary specialty in Grand Rapids, MI — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of Michigan Medical School |
| Graduation year | 1999 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1871544551 |
| 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