Whittney Aaron Warren, D.O.
NPI 1689940835ActiveIndividual· Internal Medicine, Critical Care Medicine· Fort Sam Houston, TX
Internal Medicine, Critical Care Medicine (D.O.) in Fort Sam Houston, Texas, licensed in TX and IN, with an NPI issued in March 2012. In 2024 Medicare paid $10,685 for 58 patients, and Part D covered 104 of their prescriptions, 74% of them generic. Bayer Healthcare Pharmaceuticals Inc. was the largest of 2 companies reporting payments in 2025, $215.14 in all, mostly consulting fees.
Overview
| NPI | 1689940835 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | D.O. |
| Sole proprietor | No |
| NPI issued | Mar 31, 2012 |
| Last updated in NPPES | Aug 7, 2026 |
| Certified by provider | Aug 7, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Critical Care Medicine Primary | 207RC0200X | R8680 | TX |
| Internal Medicine, Pulmonary Disease | 207RP1001X | 02004361A | IN |
| Internal Medicine, Pulmonary Disease | 207RP1001X | R8680 | TX |
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 - Critical Care (Intensivists) (TX) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 58 |
|---|---|
| Services billed | 158 across 15 procedure codes |
| Paid by Medicare | $10,685 |
Part D prescriptions in 2024
| Prescriptions (claims) | 104 · 140 30-day fills |
|---|---|
| Patients | 20 |
| Total drug cost | $13,689 |
| Generic share | 74% of claims |
Industry payments (Open Payments)
- 2025$215.14 · 2 payments from 2 companies
- 2024$112.36 · 5 payments from 3 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Bayer Healthcare Pharmaceuticals Inc. | $200.00 | 1 |
| Medtronic, Inc. | $15.14 | 1 |
What the 2025 payments were for
- Consulting Fee$200.00 · 1 payment
- Food and Beverage$15.14 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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