Quick answers
- Which hospitals does Avery D. Williamson work at?
- Medicare's official clinician data lists Avery D. Williamson at 1 hospital: UPMC Williamsport. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Avery D. Williamson see patients?
- Medicare's clinician data lists 5 practice locations, including Middleburg, PA, Williamsport, PA and Cranberry Twp, PA. Call before your visit to confirm the address.
- What is Avery D. Williamson's specialty?
- Medicare lists Physician Assistant as the primary specialty.
- Does Avery D. Williamson accept Medicare assignment?
- Yes. Medicare's clinician data says Avery D. Williamson 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 Avery D. Williamson?
- (570) 837-5889, as listed in official Medicare / NPI Registry data.
- What is Avery D. Williamson's NPI number?
- 1821548140. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Avery D. Williamson works
Medicare's Facility Affiliation Data lists Avery D. Williamson at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- UPMC WilliamsportWilliamsport, PA · Acute Care Hospital · CCN 390045
Practice locations
Addresses where Avery D. Williamson is enrolled with Medicare (CMS data updated 2026-10-02).
- 1 Dock Hill RdMiddleburg, PA 17842 (570) 837‑5889
- 1205 River AveWilliamsport, PA 17701
- 145 Shaffer StWilliamsport, PA 17702 (570) 327‑1335
- 1948 E 3rd St, Suite CWilliamsport, PA 17701 (570) 327‑1760
- 2000 Westinghouse Dr, Suite 200Cranberry Twp, PA 16066
Group practices
Medicare enrollment lists Avery D. Williamson as a member of these groups (CMS data updated 2026-10-02).
- Phoenix Rehabilitation and Health Services Inc2,800 clinicians in the group
- Family Practice Center PC361 clinicians in the group
- H2 Rehabilitation Extension Services LLC163 clinicians in the group
Specialties
- Physician Assistantprimary
Other physician assistants in Middleburg
Clinicians with the same Medicare primary specialty in Middleburg, PA — not a recommendation.
Clinician information
| Credential | PA |
|---|---|
| Graduation year | 2015 |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1821548140 |
| 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