Aarthi Vijaykumar, M.D.
NPI 1821215856ActiveIndividual· Internal Medicine, Nephrology· Elgin, IL
Internal Medicine, Nephrology (M.D.) in Elgin, Illinois, trained at Rush Medical College of Rush University (class of 2004). 517 Medicare patients in 2024, $150,408 paid; nearly all of their 1,411 Part D prescriptions were generic (95%). Opko Pharmaceuticals, LLC was the largest of 5 companies reporting payments in 2025, $141.88 in all, mostly food and beverage.
Overview
| NPI | 1821215856 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | Yes |
| NPI issued | Apr 19, 2007 |
| Last updated in NPPES | May 27, 2022 |
| Certified by provider | May 27, 2022 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Nephrology Primary | 207RN0300X | 036117659 | 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 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 - Nephrology (IL) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 517 |
|---|---|
| Services billed | 1,944 across 17 procedure codes |
| Paid by Medicare | $150,408 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,411 · 2,808 30-day fills |
|---|---|
| Patients | 238 |
| Total drug cost | $57,029 |
| Generic share | 95% of claims |
Education and affiliations
| Medical school | Rush Medical College of Rush University |
|---|---|
| Graduation year | 2004 |
| Medicare specialty | Nephrology |
| Telehealth | Offers telehealth |
Medical group
- Nephrology Associates of Northern Illinois LtdAlgonquin, IL · 117 clinicians
Hospital affiliations
- Advocate Good Shepherd HospitalBarrington, IL
- Advocate Sherman HospitalElgin, IL
- Northwest Community Hospital 1Arlington Heights, IL
- Northwestern Medicine Central Dupage HospitalWinfield, IL
- Saint Joseph Hospital-ElginElgin, IL
Other facilities
- Davita Barrington Creek DialysisDialysis facility · Lake Barrington, IL
- Davita Cobblestone DialysisDialysis facility · Elgin, IL
Industry payments (Open Payments)
- 2025$141.88 · 6 payments from 5 companies
- 2024$354.36 · 19 payments from 9 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Opko Pharmaceuticals, LLC | $46.58 | 2 |
| Novartis Pharmaceuticals Corporation | $30.85 | 1 |
| Takeda Pharmaceuticals U.S.A., Inc. | $25.19 | 1 |
| Otsuka America Pharmaceutical, Inc. | $23.18 | 1 |
| Glaxosmithkline, LLC. | $16.08 | 1 |
What the 2025 payments were for
- Food and Beverage$95.30 · 4 payments
- Education$46.58 · 2 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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