Stephanie Tanwangco, FNP
NPI 1548985203ActiveIndividual· Nurse Practitioner, Family· Granite City, IL
Nurse Practitioner, Family (FNP) with Chestnut Health Systems Inc, practicing in Granite City, Illinois. Part D covered 1,074 prescriptions written in 2024, 83% of them generic. Alkermes, Inc. was the largest of 10 companies reporting payments in 2025, $821.79 in all, mostly food and beverage. Lists Hshs St Elizabeth's Hospital as a hospital affiliation.
Overview
| NPI | 1548985203 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | FNP |
| Sole proprietor | No |
| NPI issued | Oct 5, 2022 |
| Last updated in NPPES | Nov 6, 2026 |
| Certified by provider | Nov 6, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Nurse Practitioner, Family Primary | 363LF0000X | 209.026111 | 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) |
|---|
Part D prescriptions in 2024
| Prescriptions (claims) | 1,074 · 1,200 30-day fills |
|---|---|
| Patients | 79 |
| Total drug cost | $134,753 |
| Generic share | 83% of claims |
Education and affiliations
| Graduation year | 2022 |
|---|---|
| Medicare specialty | Nurse Practitioner |
Medical group
- Chestnut Health Systems IncHillsboro, MO · 31 clinicians
Hospital affiliation
- Hshs St Elizabeth's HospitalO Fallon, IL
Industry payments (Open Payments)
- 2025$821.79 · 38 payments from 10 companies
- 2024$407.44 · 20 payments from 9 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Alkermes, Inc. | $242.69 | 10 |
| Vanda Pharmaceuticals Inc. | $197.58 | 8 |
| Neurocrine Biosciences, Inc. | $86.91 | 5 |
| Braeburn Inc. | $74.71 | 4 |
| Iti, Inc. (D/B/A Intra-Cellular Therapies, Inc.) | $61.65 | 3 |
What the 2025 payments were for
- Food and Beverage$821.79 · 38 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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