Ahmed Malik, M.D.
NPI 1679548135ActiveIndividual· Internal Medicine, Nephrology· Milwaukee, WI
Internal Medicine, Nephrology (M.D.) with Milwaukee Nephrologists SC, practicing in Milwaukee, Wisconsin. Their prescriptions cost Medicare Part D more than their services did: $355,782 for 1,728 claims, against $162,482 paid for services in 2024. Amgen Inc. was the largest of 22 companies reporting payments in 2025, $2,142 in all, mostly food and beverage. Lists Ascension Se Wisconsin Hospital and 2 other hospitals as hospital affiliations.
Overview
| NPI | 1679548135 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Feb 20, 2006 |
| Last updated in NPPES | Jun 16, 2026 |
| Certified by provider | Jun 16, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Nephrology Primary | 207RN0300X | 43996 | 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 | 292 |
|---|---|
| Services billed | 1,881 across 18 procedure codes |
| Paid by Medicare | $162,482 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,728 · 3,945 30-day fills |
|---|---|
| Patients | 260 |
| Total drug cost | $355,782 |
| Generic share | 85% of claims |
Education and affiliations
| Graduation year | 1984 |
|---|---|
| Medicare specialty | Nephrology |
| Secondary specialties | Internal Medicine |
Medical group
- Milwaukee Nephrologists SCGlendale, WI · 21 clinicians
Hospital affiliations
- Ascension Se Wisconsin HospitalMilwaukee, WI
- Ascension St Francis HospitalMilwaukee, WI
- Aurora St Lukes Medical CenterMilwaukee, WI
Other facilities
- Concerto Wisconsin LLCDialysis facility · Brookfield, WI
- Davita Bluemound Dialysis PdDialysis facility · Wauwatosa, WI
- Davita Oak Creek DialysisDialysis facility · Oak Creek, WI
- Davita South Ridge DialysisDialysis facility · Greenfield, WI
- Davita Wisconsin Avenue DialysisDialysis facility · Milwaukee, WI
- Select Specialty Hospital MilwaukeeLong-term care hospital · West Allis, WI
Industry payments (Open Payments)
- 2025$2,142 · 96 payments from 22 companies
- 2024$1,990 · 90 payments from 24 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Amgen Inc. | $329.19 | 15 |
| Astrazeneca Pharmaceuticals LP | $287.27 | 9 |
| Ani Pharmaceuticals, Inc. | $273.70 | 10 |
| Novartis Pharmaceuticals Corporation | $229.09 | 12 |
| Otsuka America Pharmaceutical, Inc. | $150.98 | 7 |
What the 2025 payments were for
- Food and Beverage$2,069 · 92 payments
- Education$73.15 · 4 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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