Chelsea Hartzell
NPI 1003450354ActiveIndividual· Internal Medicine, Gastroenterology· Lena, IL
Internal Medicine, Gastroenterology in Lena, Illinois, trained at University of Illinois College of Med (Chi/Peor/Rock/Chm-Urb) (class of 2021). Their prescriptions cost Medicare Part D more than their services did: $249,905 for 1,752 claims, against $19,964 paid for services in 2024. Ardelyx, Inc. was the largest of 3 companies reporting payments in 2025, $55.52 in all, mostly food and beverage.
Overview
| NPI | 1003450354 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Sole proprietor | No |
| NPI issued | Oct 30, 2019 |
| Last updated in NPPES | Nov 2, 2021 |
| Certified by provider | Nov 2, 2021 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Gastroenterology Primary | 207RG0100X | 209023887 | IL |
| Student in an Organized Health Care Education/Training Program | 390200000X | — | — |
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 - Nurse Practitioner (IL) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 283 |
|---|---|
| Services billed | 329 across 9 procedure codes |
| Paid by Medicare | $19,964 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,752 · 3,365 30-day fills |
|---|---|
| Patients | 520 |
| Total drug cost | $249,905 |
| Generic share | 88% of claims |
Education and affiliations
| Medical school | University of Illinois College of Med (Chi/Peor/Rock/Chm-Urb) |
|---|---|
| Graduation year | 2021 |
| Medicare specialty | Nurse Practitioner |
Medical group
- Freeport Regional Health Care FoundationFreeport, IL · 92 clinicians
Hospital affiliation
- Fhn Memorial HospitalFreeport, IL
Industry payments (Open Payments)
- 2025$55.52 · 3 payments from 3 companies
- 2024$118.77 · 6 payments from 4 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Ardelyx, Inc. | $18.79 | 1 |
| Exact Sciences Corporation | $18.67 | 1 |
| Abbvie Inc. | $18.06 | 1 |
What the 2025 payments were for
- Food and Beverage$55.52 · 3 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records