Vishnu Das Gaiha, M.D.
NPI 1437196904ActiveIndividual· Internal Medicine, Cardiovascular Disease· Evanston, IL
Internal Medicine, Cardiovascular Disease (M.D.) in Evanston, Illinois, with an NPI issued in June 2006. Their prescriptions cost Medicare Part D more than their services did: $461,227 for 4,631 claims, against $262,189 paid for services in 2024. Amgen Inc. was the largest of 5 companies reporting payments in 2025, $234.04 in all, mostly food and beverage. Lists Amita Health Resurrection Medical Center and 3 other hospitals as hospital affiliations.
Overview
| NPI | 1437196904 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | Yes |
| NPI issued | Jun 1, 2006 |
| Last updated in NPPES | Jul 8, 2007 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Cardiovascular Disease Primary | 207RC0000X | — | 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 - Cardiovascular Disease (Cardiology) (IL) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 683 |
|---|---|
| Services billed | 4,084 across 32 procedure codes |
| Paid by Medicare | $262,189 |
Part D prescriptions in 2024
| Prescriptions (claims) | 4,631 · 10,075 30-day fills |
|---|---|
| Patients | 299 |
| Total drug cost | $461,227 |
| Generic share | 86% of claims |
Education and affiliations
| Graduation year | 1969 |
|---|---|
| Medicare specialty | Cardiovascular Disease (Cardiology) |
Hospital affiliations
- Amita Health Resurrection Medical CenterChicago, IL
- Northshore University Healthsystem - Evanston HospitalEvanston, IL
- Northwestern Medicine Central Dupage HospitalWinfield, IL
- Saint Francis Hospital-EvanstonEvanston, IL
Other facilities
- Medi Link Health Services, LLCHome health agency · Schaumburg, IL
- Holy Family Medical CenterLong-term care hospital · Des Plaines, IL
Industry payments (Open Payments)
- 2025$234.04 · 13 payments from 5 companies
- 2024$638.48 · 40 payments from 9 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Amgen Inc. | $89.10 | 5 |
| Esperion Therapeutics, Inc. | $43.30 | 3 |
| Boehringer Ingelheim Pharmaceuticals, Inc. | $42.25 | 2 |
| Novartis Pharmaceuticals Corporation | $38.20 | 2 |
| Merck Sharp & Dohme LLC | $21.19 | 1 |
What the 2025 payments were for
- Food and Beverage$234.04 · 13 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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