Allister R. Williams, M.D.
NPI 1639258205ActiveIndividual· Orthopaedic Surgery· East Stroudsburg, PA
Orthopaedic Surgery (M.D.) in East Stroudsburg, Pennsylvania, trained at College of Medicine and Surgery (class of 2002). 478 Medicare patients in 2024, $207,986 paid; nearly all of their 1,267 Part D prescriptions were generic (99%). The Institute of Musculoskeletal Science and Education was the largest of 10 companies reporting payments in 2025, $2,429 in all, mostly royalties and licenses.
Overview
| NPI | 1639258205 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Nov 3, 2006 |
| Last updated in NPPES | Oct 14, 2025 |
| Certified by provider | Oct 14, 2025 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Orthopaedic Surgery Primary | 207X00000X | MD433510 | PA |
| Orthopaedic Surgery | 207X00000X | LL24193 | SC |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Nov 10, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 11, 2026 | No match | — |
| New York OMIG · Nov 11, 2026 | No match | — |
| Ohio Medicaid · Nov 11, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 11, 2026 | No match | — |
| Washington HCA · Nov 11, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Orthopedic Surgery (NY); Practitioner - Orthopedic Surgery (PA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 478 |
|---|---|
| Services billed | 15,781 across 67 procedure codes |
| Paid by Medicare | $207,986 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,267 · 1,360 30-day fills |
|---|---|
| Patients | 361 |
| Total drug cost | $15,515 |
| Generic share | 99% of claims |
Education and affiliations
| Medical school | College of Medicine and Surgery |
|---|---|
| Graduation year | 2002 |
| Medicare specialty | Orthopedic Surgery |
Medical group
- Mountain Valley Orthopedics PCEast Stroudsburg, PA · 20 clinicians
Hospital affiliations
- Bon Secours Community HospitalPort Jervis, NY
- Lehigh Valley HospitalAllentown, PA
- Lehigh Valley Hospital - PoconoEast Stroudsburg, PA
- St Luke's Hospital - Monroe CampusStroudsburg, PA
- St Luke's Miners Memorial HospitalCoaldale, PA
Other facilities
- Traditional Home Health CareHome health agency · Dunmore, PA
Industry payments (Open Payments)
- 2025$2,429 · 35 payments from 10 companies
- 2024$1,982 · 19 payments from 7 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| The Institute of Musculoskeletal Science and Education | $1,003 | 6 |
| Si-Bone, Inc. | $968.18 | 10 |
| Globus Medical, Inc. | $176.34 | 8 |
| Stryker Corporation | $70.36 | 1 |
| Ossur Americas, Inc. | $49.17 | 1 |
What the 2025 payments were for
- Royalty or License$1,003 · 6 payments
- Travel and Lodging$781.14 · 7 payments
- Food and Beverage$644.95 · 22 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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