Marlo Leonen, MD
NPI 1003883539ActiveIndividual· Internal Medicine, Cardiovascular Disease· Ypsilanti, MI
Internal Medicine, Cardiovascular Disease (MD) with Iha Health Services Corporation, practicing in Ypsilanti, Michigan. Their prescriptions cost Medicare Part D more than their services did: $2,815,329 for 4,828 claims, against $129,597 paid for services in 2024. Abbott Laboratories was the largest of 7 companies reporting payments in 2025, $624.73 in all, mostly food and beverage. Lists Chelsea Hospital and 4 other hospitals as hospital affiliations.
Overview
| NPI | 1003883539 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Mar 3, 2006 |
| Last updated in NPPES | Mar 26, 2015 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Cardiovascular Disease Primary | 207RC0000X | 4301059106 | MI |
| Specialist | 174400000X | 4301059106 | MI |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Oct 9, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 4, 2026 | No match | — |
| New York OMIG · Nov 4, 2026 | No match | — |
| Ohio Medicaid · Nov 4, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 4, 2026 | No match | — |
| Washington HCA · Nov 4, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Cardiovascular Disease (Cardiology) (MI) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 2,943 |
|---|---|
| Services billed | 5,326 across 42 procedure codes |
| Paid by Medicare | $129,597 |
Part D prescriptions in 2024
| Prescriptions (claims) | 4,828 · 11,810 30-day fills |
|---|---|
| Patients | 606 |
| Total drug cost | $2,815,329 |
| Generic share | 73% of claims |
Education and affiliations
| Graduation year | 1987 |
|---|---|
| Medicare specialty | Cardiovascular Disease (Cardiology) |
Medical group
- Iha Health Services CorporationPontiac, MI · 1,168 clinicians
Hospital affiliations
- Chelsea HospitalChelsea, MI
- St Joe Mercy Hospital System LivoniaLivonia, MI
- Trinity Health Ann Arbor HospitalAnn Arbor, MI
- Trinity Health Livingston HospitalHowell, MI
- University of Michigan Health SystemAnn Arbor, MI
Industry payments (Open Payments)
- 2025$624.73 · 13 payments from 7 companies
- 2024$618.01 · 11 payments from 5 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Abbott Laboratories | $261.36 | 4 |
| Impulse Dynamics (USA) Inc. | $155.20 | 1 |
| Bridgebio Pharma, Inc. | $75.39 | 2 |
| Pfizer Inc. | $62.32 | 2 |
| Zoll Services LLC (A/K/A Zoll Lifecor Corp) | $35.71 | 2 |
What the 2025 payments were for
- Food and Beverage$624.73 · 13 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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