Quick answers
- Which hospitals does William N. Graham work at?
- Medicare's official clinician data lists William N. Graham at 1 hospital: Avera Queen of Peace. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does William N. Graham see patients?
- Medicare's clinician data lists 4 practice locations, including Huron, SD and Mitchell, SD. Call before your visit to confirm the address.
- What is William N. Graham's specialty?
- Medicare lists Otolaryngology as the primary specialty, and also Plastic and Reconstructive Surgery.
- Does William N. Graham accept Medicare assignment?
- Yes. Medicare's clinician data says William N. Graham 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 William N. Graham?
- (605) 996-8386, as listed in official Medicare / NPI Registry data.
- What is William N. Graham's NPI number?
- 1558450254. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where William N. Graham works
Medicare's Facility Affiliation Data lists William N. Graham at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Avera Queen of PeaceMitchell, SD · Critical Access Hospital · CCN 431340
Practice locations
Addresses where William N. Graham is enrolled with Medicare (CMS data updated 2026-10-02).
- 172 4th St SE, Suite 401Huron, SD 57350 (605) 996‑8386
- 525 N Foster StMitchell, SD 57301
- 525 N Foster St, Hospital DeptMitchell, SD 57301 (605) 995‑2000
- 625 N Foster StMitchell, SD 57301
Group practices
Medicare enrollment lists William N. Graham as a member of this group (CMS data updated 2026-10-02).
- Avera Queen of Peace122 clinicians in the group
Specialties
Other ENT doctors in South Dakota
Clinicians with the same Medicare primary specialty in South Dakota — not a recommendation.
Clinician information
| Credential | DO |
|---|---|
| Graduation year | 1992 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1558450254 |
| 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