Mariano H. Demiguel, MD
NPI 1750388435ActiveIndividual· Internal Medicine, Nephrology· Toledo, OH
Internal Medicine, Nephrology (MD) in Toledo, Ohio, licensed in OH, with an NPI issued in July 2005. Their prescriptions cost Medicare Part D more than their services did: $731,231 for 2,679 claims, against $101,572 paid for services in 2024. Travere Therapeutics, Inc. was the largest of 12 companies reporting payments in 2025, $1,109 in all, mostly food and beverage. Lists Mercy St Vincent Medical Center and 1 other hospital as hospital affiliations.
Overview
| NPI | 1750388435 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Jul 7, 2005 |
| Last updated in NPPES | May 31, 2011 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Nephrology Primary | 207RN0300X | 35076290 | OH |
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) | Not in the public enrollment file of Oct 1, 2026 |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 339 |
|---|---|
| Services billed | 1,036 across 22 procedure codes |
| Paid by Medicare | $101,572 |
Part D prescriptions in 2024
| Prescriptions (claims) | 2,679 · 5,364 30-day fills |
|---|---|
| Patients | 390 |
| Total drug cost | $731,231 |
| Generic share | 87% of claims |
Education and affiliations
| Graduation year | 1983 |
|---|---|
| Medicare specialty | Nephrology |
Hospital affiliations
- Mercy St Vincent Medical CenterToledo, OH
- Promedica Toledo HospitalToledo, OH
Other facilities
- Davita Flower DialysisDialysis facility · Sylvania, OH
Industry payments (Open Payments)
- 2025$1,109 · 56 payments from 12 companies
- 2024$1,606 · 64 payments from 16 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Travere Therapeutics, Inc. | $381.32 | 20 |
| Otsuka America Pharmaceutical, Inc. | $145.90 | 7 |
| Ardelyx, Inc. | $103.39 | 5 |
| Lilly USA, LLC | $94.76 | 4 |
| Astrazeneca Pharmaceuticals LP | $90.10 | 5 |
What the 2025 payments were for
- Food and Beverage$1,107 · 55 payments
- Education$1.66 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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