Quick answers
- Which hospitals does James R. Spears work at?
- Medicare's official clinician data lists James R. Spears at 3 hospitals: Detroit Receiving Hospital, Harper University Hospital and Karmanos Cancer Center. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does James R. Spears see patients?
- Medicare's clinician data lists 2 practice locations, including Detroit, MI. Call before your visit to confirm the address.
- What is James R. Spears's specialty?
- Medicare lists Interventional Cardiology as the primary specialty, and also Cardiovascular Disease (Cardiology).
- Does James R. Spears accept Medicare assignment?
- Yes. Medicare's clinician data says James R. Spears 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 James R. Spears?
- (313) 745-8040, as listed in official Medicare / NPI Registry data.
- What is James R. Spears's NPI number?
- 1770520264. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where James R. Spears works
Medicare's Facility Affiliation Data lists James R. Spears at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Detroit Receiving HospitalDetroit, MI · Acute Care Hospital · CCN 230273
- Harper University HospitalDetroit, MI · Acute Care Hospital · CCN 230104
- Karmanos Cancer CenterDetroit, MI · Acute Care Hospital · CCN 230297
Practice locations
Addresses where James R. Spears is enrolled with Medicare (CMS data updated 2026-10-02).
- 3990 John R StDetroit, MI 48201 (313) 745‑8040
- 4201 Saint Antoine StDetroit, MI 48201 (313) 745‑3000
Group practices
Medicare enrollment lists James R. Spears as a member of this group (CMS data updated 2026-10-02).
- University Physician Group403 clinicians in the group
Specialties
Other interventional cardiologists in Detroit
Clinicians with the same Medicare primary specialty in Detroit, MI — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | State University Of New York Downstate Medical Center |
| Graduation year | 1970 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1770520264 |
| 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