Sandip Nijjar, FNP-C
NPI 1215665120ActiveIndividual· Nurse Practitioner· Winfield, IL
Nurse Practitioner (FNP-C) with Northwestern Medical Faculty Foundation and 1 other group, practicing in Winfield, Illinois. Their prescriptions cost Medicare Part D more than their services did: $82,338 for 758 claims, against $27,092 paid for services in 2024. Ardelyx, Inc. was the largest of 9 companies reporting payments in 2025, $1,413 in all, mostly food and beverage. Lists Northwestern Medicine Central Dupage Hospital as a hospital affiliation.
Overview
| NPI | 1215665120 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | FNP-C |
| Sole proprietor | No |
| NPI issued | Aug 9, 2022 |
| Last updated in NPPES | Jun 9, 2026 |
| Certified by provider | Jun 9, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Nurse Practitioner Primary | 363L00000X | 209026011 | IL |
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 - Nurse Practitioner (IL) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 401 |
|---|---|
| Services billed | 474 across 14 procedure codes |
| Paid by Medicare | $27,092 |
Part D prescriptions in 2024
| Prescriptions (claims) | 758 · 1,431 30-day fills |
|---|---|
| Patients | 465 |
| Total drug cost | $82,338 |
| Generic share | 81% of claims |
Education and affiliations
| Graduation year | 2022 |
|---|---|
| Medicare specialty | Nurse Practitioner |
| Telehealth | Offers telehealth |
Medical groups
- Northwestern Medical Faculty FoundationChicago, IL · 4,503 clinicians
- Dupage Medical Group LtdWinfield, IL · 1,322 clinicians
Hospital affiliation
- Northwestern Medicine Central Dupage HospitalWinfield, IL
Industry payments (Open Payments)
- 2025$1,413 · 34 payments from 9 companies
- 2024$5,591 · 31 payments from 7 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Ardelyx, Inc. | $297.97 | 2 |
| Janssen Biotech, Inc. | $251.87 | 12 |
| Madrigal Pharmaceuticals | $229.47 | 3 |
| Phathom Pharmaceuticals, Inc. | $214.65 | 4 |
| Abbvie Inc. | $214.30 | 9 |
What the 2025 payments were for
- Food and Beverage$1,297 · 32 payments
- Education$116.27 · 2 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 80 nurse practitioners in Winfield · All nurse practitioners in Illinois