Tierney Regan Jeffers
NPI 1508474370ActiveIndividual· Physician Assistant· Naperville, IL
Physician Assistant with Orthomidwest, PLLC, practicing in Naperville, Illinois. 58 Medicare patients in 2024, $8,766 paid; nearly all of their 221 Part D prescriptions were generic (98%). Astellas Pharma US Inc was the largest of 2 companies reporting payments in 2025, $45.81 in all, mostly food and beverage. Lists Rush Oak Park Hospital and 1 other hospital as hospital affiliations.
Overview
| NPI | 1508474370 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Sole proprietor | No |
| NPI issued | Jul 17, 2020 |
| Last updated in NPPES | Aug 13, 2025 |
| Certified by provider | Aug 13, 2025 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Physician Assistant Primary | 363A00000X | 085011097 | IL |
| Physician Assistant | 363A00000X | PA7758 | MA |
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 - Physician Assistant (IL); Practitioner - Physician Assistant (MA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 58 |
|---|---|
| Services billed | 111 across 26 procedure codes |
| Paid by Medicare | $8,766 |
Part D prescriptions in 2024
| Prescriptions (claims) | 221 · 224 30-day fills |
|---|---|
| Patients | 82 |
| Total drug cost | $1,608 |
| Generic share | 98% of claims |
Education and affiliations
| Graduation year | 2020 |
|---|---|
| Medicare specialty | Physician Assistant |
Medical group
- Orthomidwest, PLLCRockford, IL · 547 clinicians
Hospital affiliations
- Rush Oak Park HospitalOak Park, IL
- Rush University Medical CenterChicago, IL
Industry payments (Open Payments)
- 2025$45.81 · 2 payments from 2 companies
- 2024$155.69 · 1 payment from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Astellas Pharma US Inc | $31.09 | 1 |
| Lilly USA, LLC | $14.72 | 1 |
What the 2025 payments were for
- Food and Beverage$45.81 · 2 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 124 physician assistants in Naperville · All physician assistants in Illinois