Chad Alan Witt, MD
NPI 1043336001ActiveIndividual· Internal Medicine, Pulmonary Disease· Saint Louis, MO
Internal Medicine, Pulmonary Disease (MD) in Saint Louis, Missouri, trained at University of Texas Southwestern Medical School at Dallas (class of 2005). Their prescriptions cost Medicare Part D more than their services did: $1,383,577 for 4,907 claims, against $70,453 paid for services in 2024. Pfizer Inc. reported $34.99 in payments in 2025, mostly food and beverage.
Overview
| NPI | 1043336001 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Mar 21, 2007 |
| Last updated in NPPES | Apr 17, 2025 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Pulmonary Disease Primary | 207RP1001X | 2007021724 | MO |
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 - Pulmonary Disease (MO) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 260 |
|---|---|
| Services billed | 808 across 21 procedure codes |
| Paid by Medicare | $70,453 |
Part D prescriptions in 2024
| Prescriptions (claims) | 4,907 · 8,631 30-day fills |
|---|---|
| Patients | 265 |
| Total drug cost | $1,383,577 |
| Generic share | 92% of claims |
Education and affiliations
| Medical school | University of Texas Southwestern Medical School at Dallas |
|---|---|
| Graduation year | 2005 |
| Medicare specialty | Pulmonary Disease |
| Secondary specialties | Critical Care (Intensivists), Internal Medicine |
Medical group
- Washington UniversitySaint Louis, MO · 3,029 clinicians
Hospital affiliations
- Barnes Jewish HospitalSaint Louis, MO
- Barnes-Jewish St Peters HospitalSaint Peters, MO
- Barnes-Jewish West County HospitalCreve Coeur, MO
- Parkland Health CenterFarmington, MO
- University of Kansas HospitalKansas City, KS
Industry payments (Open Payments)
- 2025$34.99 · 2 payments from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Pfizer Inc. | $34.99 | 2 |
What the 2025 payments were for
- Food and Beverage$34.99 · 2 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 143 pulmonologists in Saint Louis · All pulmonologists in Missouri