Mohammad Tinawi, MD
NPI 1770686669ActiveIndividual· Internal Medicine, Nephrology· Munster, IN
Internal Medicine, Nephrology (MD) with Nephrology Specialists, P.C., practicing in Munster, Indiana. Their prescriptions cost Medicare Part D more than their services did: $257,881 for 1,269 claims, against $160,705 paid for services in 2024. Amgen Inc. was the largest of 10 companies reporting payments in 2025, $336.29 in all, mostly food and beverage. Lists Community Hospital and 3 other hospitals as hospital affiliations.
Overview
| NPI | 1770686669 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Sep 6, 2006 |
| Last updated in NPPES | Feb 14, 2014 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Nephrology Primary | 207RN0300X | 4301056707 | MI |
| Internal Medicine | 207R00000X | 01071538 | IN |
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 (IN) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 338 |
|---|---|
| Services billed | 2,147 across 19 procedure codes |
| Paid by Medicare | $160,705 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,269 · 2,591 30-day fills |
|---|---|
| Patients | 184 |
| Total drug cost | $257,881 |
| Generic share | 81% of claims |
Education and affiliations
| Graduation year | 1989 |
|---|---|
| Medicare specialty | Nephrology |
| Secondary specialties | Internal Medicine |
Medical group
- Nephrology Specialists, P.C.Gary, IN · 9 clinicians
Hospital affiliations
- Community HospitalMunster, IN
- Franciscan Health DyerDyer, IN
- St Catherine Hospital IncEast Chicago, IN
- St Mary Medical Center IncHobart, IN
Other facilities
- Davita Comprehensive Renal Care - East ChicagoDialysis facility · East Chicago, IN
- Davita Comprehensive Renal Care - HammondDialysis facility · Hammond, IN
- Davita Comprehensive Renal Care - MunsterDialysis facility · Munster, IN
- Powers Health Rehabilitation CenterInpatient rehabilitation facility · Crown Point, IN
Industry payments (Open Payments)
- 2025$336.29 · 15 payments from 10 companies
- 2024$627.44 · 22 payments from 10 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Amgen Inc. | $56.43 | 3 |
| Novartis Pharmaceuticals Corporation | $45.37 | 2 |
| Ardelyx, Inc. | $42.03 | 2 |
| Calliditas Therapeutics US Inc. | $40.70 | 2 |
| Lilly USA, LLC | $34.20 | 1 |
What the 2025 payments were for
- Food and Beverage$336.29 · 15 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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