Liisa K. Field, PA-C
NPI 1215921911ActiveIndividual· Physician Assistant· Warrenton, VA
Physician Assistant (PA-C) in Warrenton, Virginia, trained at George Washington University School of Medicine (class of 1999). Their prescriptions cost Medicare Part D more than their services did: $298,444 for 3,567 claims, against $92,927 paid for services in 2024.
Overview
| NPI | 1215921911 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | PA-C |
| Sole proprietor | No |
| NPI issued | Sep 8, 2005 |
| Last updated in NPPES | Apr 8, 2026 |
| Certified by provider | Apr 8, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Physician Assistant Primary | 363A00000X | 0110006233 | VA |
| Physician Assistant, Medical | 363AM0700X | 0110006233 | VA |
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 (VA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 352 |
|---|---|
| Services billed | 1,389 across 36 procedure codes |
| Paid by Medicare | $92,927 |
Part D prescriptions in 2024
| Prescriptions (claims) | 3,567 · 6,387 30-day fills |
|---|---|
| Patients | 509 |
| Total drug cost | $298,444 |
| Generic share | 90% of claims |
Education and affiliations
| Medical school | George Washington University School of Medicine |
|---|---|
| Graduation year | 1999 |
| Medicare specialty | Physician Assistant |
Medical groups
- University of Virginia Physicians GroupCharlottesville, VA · 1,717 clinicians
- Uva Community Health Medical Group LLCBristow, VA · 340 clinicians
Hospital affiliations
- Fauquier HospitalWarrenton, VA
- Uva Health Culpeper Medical CenterCulpeper, VA
- Uva Health Haymarket Medical CenterHaymarket, VA
- Uva Health Prince William Medical CenterManassas, VA
Industry payments (Open Payments)
None reported for 2025 or 2024.
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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