Quick answers
- Which hospitals does Gregory S. Stewart work at?
- Medicare's official clinician data lists Gregory S. Stewart at 5 hospitals: Billings Clinic Hospital, Cody Regional Health, Powell Valley Hospital, South Big Horn County Hospital and Washakie Medical Center. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Gregory S. Stewart see patients?
- Medicare's clinician data lists 3 practice locations, including Cody, WY and Powell, WY. Call before your visit to confirm the address.
- What is Gregory S. Stewart's specialty?
- Medicare lists Urology as the primary specialty.
- Does Gregory S. Stewart accept Medicare assignment?
- Yes. Medicare's clinician data says Gregory S. Stewart 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 Gregory S. Stewart?
- (307) 587-5131, as listed in official Medicare / NPI Registry data.
- What is Gregory S. Stewart's NPI number?
- 1346216611. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Gregory S. Stewart works
Medicare's Facility Affiliation Data lists Gregory S. Stewart at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Billings Clinic HospitalBillings, MT · Acute Care Hospital · CCN 270004
- Cody Regional HealthCody, WY · Critical Access Hospital · CCN 531312
- Powell Valley HospitalPowell, WY · Critical Access Hospital · CCN 531310
- South Big Horn County HospitalBasin, WY · Critical Access Hospital · CCN 531301
- Washakie Medical CenterWorland, WY · Critical Access Hospital · CCN 531306
Practice locations
Addresses where Gregory S. Stewart is enrolled with Medicare (CMS data updated 2026-10-02).
- 225 W Yellowstone Ave, Suite 9Cody, WY 82414 (307) 587‑5131
- 707 Sheridan AveCody, WY 82414 (307) 527‑7501
- 777 Ave HPowell, WY 82435 (307) 754‑2267
Specialties
- Urologyprimary
Other urologists in Wyoming
Clinicians with the same Medicare primary specialty in Wyoming — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 1996 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1346216611 |
| 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