Quick answers
- Which hospitals does Warren B. Fields work at?
- Medicare's official clinician data lists Warren B. Fields at 4 hospitals: Beaumont Hospital - Farmington Hills, Beaumont Hospital - Grosse Pointe, Beaumont Hospital Royal Oak and Beaumont Hospital, Troy. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Warren B. Fields see patients?
- Medicare's clinician data lists 5 practice locations, including Farmington Hills, MI, Royal Oak, MI and Troy, MI. Call before your visit to confirm the address.
- What is Warren B. Fields's specialty?
- Medicare lists Pulmonary Disease as the primary specialty, and also Critical Care (Intensivists).
- Does Warren B. Fields accept Medicare assignment?
- Yes. Medicare's clinician data says Warren B. Fields 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 Warren B. Fields?
- (248) 548-2114, as listed in official Medicare / NPI Registry data.
- What is Warren B. Fields's NPI number?
- 1225158694. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Warren B. Fields works
Medicare's Facility Affiliation Data lists Warren B. Fields at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Beaumont Hospital - Farmington HillsFarmington Hills, MI · Acute Care Hospital · CCN 230151
- Beaumont Hospital - Grosse PointeGrosse Pointe, MI · Acute Care Hospital · CCN 230089
- Beaumont Hospital Royal OakRoyal Oak, MI · Acute Care Hospital · CCN 230130
- Beaumont Hospital, TroyTroy, MI · Acute Care Hospital · CCN 230269
Practice locations
Addresses where Warren B. Fields is enrolled with Medicare (CMS data updated 2026-10-02).
- 28100 Grand River AveFarmington Hills, MI 48336
- 30701 Woodward Ave, Suite 200Royal Oak, MI 48073 (248) 548‑2114
- 3601 W 13 Mile RdRoyal Oak, MI 48073
- 3601 W 13 Mile Rd Ec, Beaumont Emergency Services RoRoyal Oak, MI 48073 (248) 898‑5058
- 4550 Investment Dr, Suite 260Troy, MI 48098 (248) 267‑9370
Group practices
Medicare enrollment lists Warren B. Fields as a member of these groups (CMS data updated 2026-10-02).
- Beaumont Medical Group- Specialty Services847 clinicians in the group
- Greenberger Wu Dunn and Fields PLLC4 clinicians in the group
Specialties
Other pulmonologists in Farmington Hills
Clinicians with the same Medicare primary specialty in Farmington Hills, MI — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Indiana University School Of Medicine |
| Graduation year | 2000 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1225158694 |
| 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