Osaid K. Ahmad, MD
NPI 1689618589ActiveIndividual· Internal Medicine, Nephrology· Neenah, WI
Internal Medicine, Nephrology (MD) with St Vincent Hospital-Hospital Sisters-Third Order of St Francis and 1 other group, practicing in Neenah, Wisconsin. 212 Medicare patients in 2024, $114,968 paid; nearly all of their 471 Part D prescriptions were generic (94%). Genzyme Corporation was the largest of 2 companies reporting payments in 2025, $40.93 in all, mostly food and beverage. Lists Ascension Ne Wisconsin - St Elizabeth Campus and 4 other hospitals as hospital affiliations.
Overview
| NPI | 1689618589 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Jun 15, 2006 |
| Last updated in NPPES | Feb 10, 2012 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Nephrology Primary | 207RN0300X | 42175020 | WI |
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 - Nephrology (WI) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 212 |
|---|---|
| Services billed | 835 across 25 procedure codes |
| Paid by Medicare | $114,968 |
Part D prescriptions in 2024
| Prescriptions (claims) | 471 · 1,137 30-day fills |
|---|---|
| Patients | 103 |
| Total drug cost | $97,252 |
| Generic share | 94% of claims |
Education and affiliations
| Graduation year | 1995 |
|---|---|
| Medicare specialty | Nephrology |
| Secondary specialties | Internal Medicine |
Medical groups
- St Vincent Hospital-Hospital Sisters-Third Order of St FrancisGreen Bay, WI · 603 clinicians
- Fox Valley Nephrology Partners S CNeenah, WI · 12 clinicians
Hospital affiliations
- Ascension Ne Wisconsin - St Elizabeth CampusAppleton, WI
- St Vincent HospitalGreen Bay, WI
- Thedacare Medical Center - ShawanoShawano, WI
- Thedacare Regional Med Ctr - NeenahNeenah, WI
- Thedacare Regional Medical Center - Appleton IncAppleton, WI
Other facilities
- Fmc - NeenahDialysis facility · Neenah, WI
- Fmc Dialysis - AppletonDialysis facility · Appleton, WI
- Fmc Dialysis - WaupacaDialysis facility · Waupaca, WI
Industry payments (Open Payments)
- 2025$40.93 · 2 payments from 2 companies
- 2024$75.10 · 4 payments from 3 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Genzyme Corporation | $26.71 | 1 |
| Otsuka Pharmaceutical Development & Commercialization, Inc. | $14.22 | 1 |
What the 2025 payments were for
- Food and Beverage$40.93 · 2 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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