Allen M. Williams, M.D.
NPI 1720062680ActiveIndividual· Anesthesiology· Smithtown, NY
Anesthesiology (M.D.) with North Shore - Lij Anesthesiology, PC, practicing in Smithtown, New York. Medicare paid $26,310 for services to 177 patients in 2024. Lists John T Mather Memorial Hospital of Port Jefferson as a hospital affiliation.
Overview
| NPI | 1720062680 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | Yes |
| NPI issued | Dec 5, 2005 |
| Last updated in NPPES | Mar 18, 2014 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Anesthesiology Primary | 207L00000X | 223882 | NY |
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 - Anesthesiology (NY) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 177 |
|---|---|
| Services billed | 180 across 30 procedure codes |
| Paid by Medicare | $26,310 |
Education and affiliations
| Graduation year | 1991 |
|---|---|
| Medicare specialty | Anesthesiology |
Medical group
- North Shore - Lij Anesthesiology, PCUniondale, NY · 1,003 clinicians
Hospital affiliation
- John T Mather Memorial Hospital of Port JeffersonPort Jefferson, NY
Industry payments (Open Payments)
None reported for 2025 or 2024.
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 40 anesthesiologists in Smithtown · All anesthesiologists in New York