John R. Williams, M.D.
NPI 1194752915ActiveIndividual· Anesthesiology· Knoxville, TN
Anesthesiology (M.D.) in Knoxville, Tennessee, trained at Texas A & M University System, Hsc, College of Medicine (class of 1989). Their prescriptions cost Medicare Part D more than their services did: $7,465 for 97 claims, against $4,258 paid for services in 2024.
Overview
| NPI | 1194752915 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Jun 27, 2006 |
| Last updated in NPPES | Jul 23, 2018 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Anesthesiology Primary | 207L00000X | DR.0031561 | CO |
| Pediatrics | 208000000X | MD25323 | TN |
| Pediatrics, Pediatric Emergency Medicine | 2080P0204X | MD25323 | TN |
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 (CO) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 29 |
|---|---|
| Services billed | 32 across 20 procedure codes |
| Paid by Medicare | $4,258 |
Part D prescriptions in 2024
| Prescriptions (claims) | 97 · 97 30-day fills |
|---|---|
| Total drug cost | $7,465 |
| Generic share | 74% of claims |
Education and affiliations
| Medical school | Texas A & M University System, Hsc, College of Medicine |
|---|---|
| Graduation year | 1989 |
| Medicare specialty | Anesthesiology |
Medical group
- US Anesthesia Partners of Colorado IncGreenwood Village, CO · 461 clinicians
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 126 anesthesiologists in Knoxville · All anesthesiologists in Tennessee