Michael Nasr Mankarious, M.D.
NPI 1659375921ActiveIndividual· Internal Medicine· Clinton, IA
Internal Medicine (M.D.) with Mercy Specialty Clinic, practicing in Clinton, Iowa. Their prescriptions cost Medicare Part D more than their services did: $1,098,814 for 14,027 claims, against $74,985 paid for services in 2024. Astrazeneca Pharmaceuticals LP was the largest of 10 companies reporting payments in 2025, $349.89 in all, mostly food and beverage. Lists Mercyone Clinton Medical Center as a hospital affiliation.
Overview
| NPI | 1659375921 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Jun 2, 2005 |
| Last updated in NPPES | Mar 29, 2017 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | 28726 | IA |
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 (IA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 207 |
|---|---|
| Services billed | 1,655 across 46 procedure codes |
| Paid by Medicare | $74,985 |
Part D prescriptions in 2024
| Prescriptions (claims) | 14,027 · 21,853 30-day fills |
|---|---|
| Patients | 386 |
| Total drug cost | $1,098,814 |
| Generic share | 86% of claims |
Education and affiliations
| Graduation year | 1979 |
|---|---|
| Medicare specialty | Internal Medicine |
Medical group
- Mercy Specialty ClinicClinton, IA · 65 clinicians
Hospital affiliation
- Mercyone Clinton Medical CenterClinton, IA
Other facilities
- Genesis VnaHome health agency · Bettendorf, IA
- Mercyone GenesisHospice · Bettendorf, IA
- The Alverno Health Care FacilityNursing home · Clinton, IA
Industry payments (Open Payments)
- 2025$349.89 · 19 payments from 10 companies
- 2024$537.56 · 29 payments from 10 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Astrazeneca Pharmaceuticals LP | $91.77 | 5 |
| Neurocrine Biosciences, Inc. | $59.48 | 3 |
| Boston Scientific Corporation | $40.46 | 2 |
| Dexcom, Inc. | $38.67 | 2 |
| Xeris Pharmaceuticals, Inc. | $33.33 | 2 |
What the 2025 payments were for
- Food and Beverage$349.89 · 19 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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