Christa M. Purdum, PA
NPI 1689806531ActiveIndividual· Physician Assistant· Manassas, VA
Physician Assistant (PA) in Manassas, Virginia, trained at Eastern Virginia Medical School (class of 2009). Their prescriptions cost Medicare Part D more than their services did: $368,919 for 841 claims, against $29,122 paid for services in 2024. Janssen Biotech, Inc. was the largest of 16 companies reporting payments in 2025, $940.65 in all, mostly food and beverage.
Overview
| NPI | 1689806531 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | PA |
| Sole proprietor | No |
| NPI issued | Aug 11, 2009 |
| Last updated in NPPES | Nov 3, 2026 |
| Certified by provider | Nov 3, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Physician Assistant Primary | 363A00000X | 0110003057 | 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 (DC); Practitioner - Physician Assistant (VA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 364 |
|---|---|
| Services billed | 424 across 13 procedure codes |
| Paid by Medicare | $29,122 |
Part D prescriptions in 2024
| Prescriptions (claims) | 841 · 1,534 30-day fills |
|---|---|
| Patients | 221 |
| Total drug cost | $368,919 |
| Generic share | 81% of claims |
Education and affiliations
| Medical school | Eastern Virginia Medical School |
|---|---|
| Graduation year | 2009 |
| Medicare specialty | Physician Assistant |
| Telehealth | Offers telehealth |
Medical groups
- Uva Community Health Medical Group LLCBristow, VA · 340 clinicians
- Gastroenterology Associates VA, LLCWarrenton, VA · 51 clinicians
Hospital affiliations
- Fauquier HospitalWarrenton, VA
- University of Virginia Medical CenterCharlottesville, VA
- Uva Health Culpeper Medical CenterCulpeper, VA
- Uva Health Haymarket Medical CenterHaymarket, VA
- Uva Health Prince William Medical CenterManassas, VA
Industry payments (Open Payments)
- 2025$940.65 · 29 payments from 16 companies
- 2024$604.34 · 18 payments from 12 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Janssen Biotech, Inc. | $216.34 | 4 |
| Madrigal Pharmaceuticals | $95.44 | 3 |
| Ethicon US, LLC | $94.16 | 1 |
| Abbvie Inc. | $93.17 | 4 |
| Aimmune Therapeutics, Inc. | $67.08 | 3 |
What the 2025 payments were for
- Food and Beverage$940.65 · 29 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 56 physician assistants in Manassas · All physician assistants in Virginia