Vasil Peev, M.D.
NPI 1427229087ActiveIndividual· Internal Medicine, Nephrology· Chicago, IL
Internal Medicine, Nephrology (M.D.) with Loyola University Medical Center, practicing in Chicago, Illinois. Their prescriptions cost Medicare Part D more than their services did: $343,098 for 3,279 claims, against $85,559 paid for services in 2024. Calliditas Therapeutics US Inc. was the largest of 3 companies reporting payments in 2025, $518.28 in all, mostly food and beverage. Lists Loyola Gottlieb Memorial Hospital and 1 other hospital as hospital affiliations.
Overview
| NPI | 1427229087 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | Yes |
| NPI issued | Mar 21, 2008 |
| Last updated in NPPES | Feb 20, 2015 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Nephrology Primary | 207RN0300X | 036-135152 | IL |
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 - Nephrology (IL) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 286 |
|---|---|
| Services billed | 1,072 across 15 procedure codes |
| Paid by Medicare | $85,559 |
Part D prescriptions in 2024
| Prescriptions (claims) | 3,279 · 6,425 30-day fills |
|---|---|
| Patients | 281 |
| Total drug cost | $343,098 |
| Generic share | 93% of claims |
Education and affiliations
| Graduation year | 2006 |
|---|---|
| Medicare specialty | Nephrology |
| Secondary specialties | Internal Medicine |
Medical group
- Loyola University Medical CenterMaywood, IL · 953 clinicians
Hospital affiliations
- Loyola Gottlieb Memorial HospitalMelrose Park, IL
- Loyola University Medical CenterMaywood, IL
Industry payments (Open Payments)
- 2025$518.28 · 6 payments from 3 companies
- 2024$2,345 · 4 payments from 2 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Calliditas Therapeutics US Inc. | $354.22 | 3 |
| One Lambda, Inc. | $109.38 | 2 |
| Travere Therapeutics, Inc. | $54.68 | 1 |
What the 2025 payments were for
- Food and Beverage$518.28 · 6 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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