Felix Nau Jr, MD
NPI 1932632544ActiveIndividual· Internal Medicine· Washington, MO
Internal Medicine (MD) with Mercy Clinic Adult Hospitalists - Washington, LLC, practicing in Washington, Missouri. In 2024 Medicare paid $35,121 for 233 patients, and Part D covered 768 of their prescriptions, 89% of them generic. Lists Mercy Hospital Washington as a hospital affiliation.
Overview
| NPI | 1932632544 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Apr 10, 2017 |
| Last updated in NPPES | Sep 19, 2023 |
| Certified by provider | Sep 19, 2023 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | 2020015141 | MO |
| Hospitalist | 208M00000X | 2020015141 | MO |
| Student in an Organized Health Care Education/Training Program | 390200000X | — | — |
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 - Hospitalist (MO) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 233 |
|---|---|
| Services billed | 510 across 7 procedure codes |
| Paid by Medicare | $35,121 |
Part D prescriptions in 2024
| Prescriptions (claims) | 768 · 806 30-day fills |
|---|---|
| Patients | 347 |
| Total drug cost | $27,297 |
| Generic share | 89% of claims |
Education and affiliations
| Graduation year | 2009 |
|---|---|
| Medicare specialty | Hospitalist |
| Secondary specialties | Internal Medicine |
Medical group
- Mercy Clinic Adult Hospitalists - Washington, LLCWashington, MO · 32 clinicians
Hospital affiliation
- Mercy Hospital WashingtonWashington, MO
Industry payments (Open Payments)
None reported for 2025 or 2024.
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
Other internal medicine physicians in Washington
- 1063036671
- 1376746743
- 1407820913
- 1437192481
- 1467496216
- 1689610446
- 1700183142
- 1760596134
- 1922020064
- 1801822747
- 1891429536
- 1013003664
All 25 internal medicine physicians in Washington · All internal medicine physicians in Missouri