Quick answers
- Which hospitals does William M. Oliver work at?
- Medicare's official clinician data lists William M. Oliver at 2 hospitals: Huggins Hospital and Wentworth-Douglass Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does William M. Oliver see patients?
- Medicare's clinician data lists 2 practice locations, including Portsmouth, NH and Somersworth, NH. Call before your visit to confirm the address.
- What is William M. Oliver's specialty?
- Medicare lists Orthopedic Surgery as the primary specialty.
- Does William M. Oliver accept Medicare assignment?
- Yes. Medicare's clinician data says William M. Oliver 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.
- Does William M. Oliver offer telehealth?
- Medicare's clinician data says William M. Oliver offers telehealth services. Ask the office which visits can be done by video or phone.
- What is the phone number for William M. Oliver?
- (603) 610-8070, as listed in official Medicare / NPI Registry data.
- What is William M. Oliver's NPI number?
- 1396620621. 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 M. Oliver works
Medicare's Facility Affiliation Data lists William M. Oliver at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Huggins HospitalWolfeboro, NH · Critical Access Hospital · CCN 301312
- Wentworth-Douglass HospitalDover, NH · Acute Care Hospital · CCN 300018
Practice locations
Addresses where William M. Oliver is enrolled with Medicare (CMS data updated 2026-10-02).
- 67 Corporate Dr, Fl 2Portsmouth, NH 03801 (603) 610‑8070
- 7 Marsh Brook Dr, Suite 205Somersworth, NH 03878 (603) 742‑2007
Group practices
Medicare enrollment lists William M. Oliver as a member of this group (CMS data updated 2026-10-02).
- Wentworth Douglass Physician Corporation429 clinicians in the group
Specialties
- Orthopedic Surgeryprimary
Other orthopedic surgeons in Portsmouth
Clinicians with the same Medicare primary specialty in Portsmouth, NH — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 2023 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1396620621 |
| 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