Quick answers
- Which hospitals does James Gregory B. Holliday work at?
- Medicare's official clinician data lists James Gregory B. Holliday at 1 hospital: Ascension Providence Hospital, Southfield and Novi…. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does James Gregory B. Holliday see patients?
- Medicare's clinician data lists 1 practice location in Southfield, MI. Call before your visit to confirm the address.
- What is James Gregory B. Holliday's specialty?
- Medicare lists Certified Registered Nurse Anesthetist (CRNA) as the primary specialty.
- Does James Gregory B. Holliday accept Medicare assignment?
- Yes. Medicare's clinician data says James Gregory B. Holliday 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 Gregory B. Holliday?
- (248) 849-3000, as listed in official Medicare / NPI Registry data.
- What is James Gregory B. Holliday's NPI number?
- 1275937419. 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 Gregory B. Holliday works
Medicare's Facility Affiliation Data lists James Gregory B. Holliday 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
Practice locations
Addresses where James Gregory B. Holliday is enrolled with Medicare (CMS data updated 2026-10-02).
- 16001 W 9 Mile RdSouthfield, MI 48075 (248) 849‑3000
Group practices
Medicare enrollment lists James Gregory B. Holliday as a member of this group (CMS data updated 2026-10-02).
- Henry Ford Health Providence Hospital375 clinicians in the group
Specialties
Find other clinicians: Certified Registered Nurse Anesthetist (CRNA), Michigan →
Other nurse anesthetists in Southfield
Clinicians with the same Medicare primary specialty in Southfield, MI — not a recommendation.
Clinician information
| Credential | CNA |
|---|---|
| Graduation year | 2014 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1275937419 |
| 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