Katherine L. Walls, P.A.-C.
NPI 1992121057ActiveIndividual· Physician Assistant· Springfield, IL
Physician Assistant (P.A.-C.) with Springfield Clinic, LLP and 1 other group, practicing in Springfield, Illinois. Their prescriptions cost Medicare Part D more than their services did: $412,716 for 1,390 claims, against $13,247 paid for services in 2024. Tg Therapeutics, Inc. was the largest of 27 companies reporting payments in 2025, $3,116 in all, mostly food and beverage. Lists Memorial Medical Center and 1 other hospital as hospital affiliations.
Overview
| NPI | 1992121057 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | P.A.-C. |
| Sole proprietor | No |
| NPI issued | Mar 13, 2014 |
| Last updated in NPPES | Sep 11, 2024 |
| Certified by provider | Sep 11, 2024 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Physician Assistant Primary | 363A00000X | 085004902 | IL |
| Physician Assistant | 363A00000X | 4266 | TN |
| Physician Assistant, Medical | 363AM0700X | PA9107788 | FL |
| Physician Assistant | 363A00000X | PA9107788 | FL |
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 - Physician Assistant (IL); Practitioner - Physician Assistant (TN) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 151 |
|---|---|
| Services billed | 220 across 10 procedure codes |
| Paid by Medicare | $13,247 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,390 · 2,212 30-day fills |
|---|---|
| Patients | 208 |
| Total drug cost | $412,716 |
| Generic share | 89% of claims |
Education and affiliations
| Graduation year | 2023 |
|---|---|
| Medicare specialty | Physician Assistant |
Medical groups
- Springfield Clinic, LLPSpringfield, IL · 687 clinicians
- Cep America-Illinois Hospitalists, LLPAlton, IL · 196 clinicians
Hospital affiliations
- Memorial Medical CenterSpringfield, IL
- St Johns HospitalSpringfield, IL
Industry payments (Open Payments)
- 2025$3,116 · 113 payments from 27 companies
- 2024$2,291 · 94 payments from 32 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Tg Therapeutics, Inc. | $407.01 | 17 |
| Abbvie Inc. | $400.81 | 30 |
| Neurocrine Biosciences, Inc. | $271.62 | 13 |
| Biogen, Inc. | $256.91 | 4 |
| Ucb, Inc. | $195.60 | 4 |
What the 2025 payments were for
- Food and Beverage$3,001 · 110 payments
- Education$115.62 · 3 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
Other Physician Assistant providers in Springfield
- 1053387779
- 1831672674
- 1588643902
- 1669706057
- 1508557109
- 1295251239
- 1265788632
- 1578664801
- 1477062404
- 1336921790
- 1891165809
- 1548974686