Eliezer R. De Leon, M.D.
NPI 1578536009ActiveIndividual· Internal Medicine· Dearborn, MI
Internal Medicine (M.D.) with Downriver Internists,p.C., practicing in Dearborn, Michigan. Their prescriptions cost Medicare Part D more than their services did: $288,822 for 2,663 claims, against $26,714 paid for services in 2024. Aimmune Therapeutics, Inc. was the largest of 2 companies reporting payments in 2025, $178.93 in all, mostly food and beverage. Lists Beaumont Hospital - Dearborn and 2 other hospitals as hospital affiliations.
Overview
| NPI | 1578536009 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Feb 7, 2006 |
| Last updated in NPPES | Oct 22, 2020 |
| Certified by provider | Oct 22, 2020 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | 038489 | MI |
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 - Internal Medicine (MI) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 83 |
|---|---|
| Services billed | 511 across 25 procedure codes |
| Paid by Medicare | $26,714 |
Part D prescriptions in 2024
| Prescriptions (claims) | 2,663 · 5,932 30-day fills |
|---|---|
| Patients | 224 |
| Total drug cost | $288,822 |
| Generic share | 87% of claims |
Education and affiliations
| Graduation year | 1973 |
|---|---|
| Medicare specialty | Internal Medicine |
Medical group
- Downriver Internists,p.C.Taylor, MI · 4 clinicians
Hospital affiliations
- Beaumont Hospital - DearbornDearborn, MI
- Beaumont Hospital Royal OakRoyal Oak, MI
- Corewell Health Wayne HospitalWayne, MI
Industry payments (Open Payments)
- 2025$178.93 · 5 payments from 2 companies
- 2024$60.55 · 3 payments from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Aimmune Therapeutics, Inc. | $112.50 | 1 |
| Exact Sciences Corporation | $66.43 | 4 |
What the 2025 payments were for
- Food and Beverage$178.93 · 5 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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