Wolfgang C. Winkelmayer, M.D., SC.D.
NPI 1871757021ActiveIndividual· Internal Medicine, Nephrology· Houston, TX
Internal Medicine, Nephrology (M.D., SC.D.) with Baylor College of Medicine, practicing in Houston, Texas. Medicare paid $4,829 for services to 17 patients in 2024. Merck Sharp & Dohme LLC was the largest of 6 companies reporting payments in 2025, $58,714 in all, mostly consulting fees. Lists Harris Health as a hospital affiliation.
Overview
| NPI | 1871757021 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D., SC.D. |
| Sole proprietor | No |
| NPI issued | Jul 17, 2008 |
| Last updated in NPPES | Mar 6, 2025 |
| Certified by provider | Mar 6, 2025 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Nephrology Primary | 207RN0300X | Q3991 | TX |
| Internal Medicine | 207R00000X | Q3991 | TX |
| Internal Medicine, Nephrology | 207RN0300X | 233464 | MA |
| Internal Medicine, Nephrology | 207RN0300X | A113419 | CA |
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 - Internal Medicine (TX) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 17 |
|---|---|
| Services billed | 61 across 6 procedure codes |
| Paid by Medicare | $4,829 |
Education and affiliations
| Graduation year | 1990 |
|---|---|
| Medicare specialty | Internal Medicine |
| Secondary specialties | Nephrology |
Medical group
- Baylor College of MedicineHouston, TX · 809 clinicians
Hospital affiliation
- Harris HealthHouston, TX
Industry payments (Open Payments)
- 2025$58,714 · 29 payments from 6 companies
- 2024$82,211 · 44 payments from 6 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Merck Sharp & Dohme LLC | $26,730 | 8 |
| Boehringer Ingelheim International Gmbh | $14,138 | 2 |
| Akebia Therapeutics Inc | $12,751 | 14 |
| Astrazeneca Ab | $2,082 | 1 |
| Astrazeneca Uk Limited | $2,013 | 2 |
What the 2025 payments were for
- Consulting Fee$46,651 · 13 payments
- Travel and Lodging$11,519 · 9 payments
- Food and Beverage$287.19 · 6 payments
- Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program$256.50 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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