David Irvin Williams, M.D.
NPI 1023376878ActiveIndividual· Internal Medicine, Critical Care Medicine· Memphis, TN
Internal Medicine, Critical Care Medicine (M.D.) in Memphis, Tennessee, trained at University of Tennessee, Hsc, College of Medicine (class of 2012). In 2024 Medicare paid $135,091 for 644 patients, and Part D covered 533 of their prescriptions, 49% of them generic. Lungpacer Medical USA Inc was the largest of 10 companies reporting payments in 2025, $510.12 in all, mostly food and beverage.
Overview
| NPI | 1023376878 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Apr 30, 2012 |
| Last updated in NPPES | Jun 7, 2021 |
| Certified by provider | Jun 7, 2021 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Critical Care Medicine Primary | 207RC0200X | 52754 | TN |
| Internal Medicine, Pulmonary Disease | 207RP1001X | 52754 | TN |
| Internal Medicine, Sleep Medicine | 207RS0012X | 52754 | TN |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Oct 9, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 10, 2026 | No match | — |
| New York OMIG · Nov 10, 2026 | No match | — |
| Ohio Medicaid · Nov 10, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 10, 2026 | No match | — |
| Washington HCA · Nov 10, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Pulmonary Disease (TN) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 644 |
|---|---|
| Services billed | 1,664 across 45 procedure codes |
| Paid by Medicare | $135,091 |
Part D prescriptions in 2024
| Prescriptions (claims) | 533 · 694 30-day fills |
|---|---|
| Patients | 107 |
| Total drug cost | $155,847 |
| Generic share | 49% of claims |
Education and affiliations
| Medical school | University of Tennessee, Hsc, College of Medicine |
|---|---|
| Graduation year | 2012 |
| Medicare specialty | Pulmonary Disease |
| Secondary specialties | Critical Care (Intensivists) |
Medical groups
- Southeastern Physician Services PCSaint Peters, MO · 593 clinicians
- Mid-South Pulmonary Specialists PCMemphis, TN · 47 clinicians
Hospital affiliation
- Methodist Hospitals of MemphisMemphis, TN
Industry payments (Open Payments)
- 2025$510.12 · 11 payments from 10 companies
- 2024$170.23 · 8 payments from 6 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Lungpacer Medical USA Inc | $174.28 | 1 |
| Coaptech, Inc. | $152.98 | 1 |
| Genzyme Corporation | $33.10 | 1 |
| Astrazeneca Pharmaceuticals LP | $29.23 | 2 |
| Fisher & Paykel Healthcare Inc | $26.11 | 1 |
What the 2025 payments were for
- Food and Beverage$510.12 · 11 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
Other Internal Medicine, Critical Care Medicine providers in Memphis
- 1073592275
- 1154506210
- 1659362960
- 1093337982
- 1679558779
- 1366948028
- 1235110313
- 1336145317
- 1972594208
- 1912354853
- 1164805479
- 1629059712
All Internal Medicine, Critical Care Medicine providers in Tennessee →