Christina A. Foster, PA-C
NPI 1649321837ActiveIndividual· Physician Assistant· Peoria, AZ
Physician Assistant (PA-C) with Valley Arthritis Care LLC, practicing in Peoria, Arizona. Their prescriptions cost Medicare Part D more than their services did: $820,710 for 1,601 claims, against $230,894 paid for services in 2024. Amgen Inc. was the largest of 19 companies reporting payments in 2025, $2,412 in all, mostly food and beverage. Lists Wickenburg Community Hospital as a hospital affiliation.
Overview
| NPI | 1649321837 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | PA-C |
| Sole proprietor | No |
| NPI issued | Jan 15, 2007 |
| Last updated in NPPES | Jul 14, 2016 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Physician Assistant Primary | 363A00000X | 3399 | AZ |
| Physician Assistant, Medical | 363AM0700X | 3399 | AZ |
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 (AZ) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 113 |
|---|---|
| Services billed | 12,393 across 27 procedure codes |
| Paid by Medicare | $230,894 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,601 · 3,083 30-day fills |
|---|---|
| Patients | 212 |
| Total drug cost | $820,710 |
| Generic share | 87% of claims |
Education and affiliations
| Graduation year | 2002 |
|---|---|
| Medicare specialty | Physician Assistant |
| Telehealth | Offers telehealth |
Medical group
- Valley Arthritis Care LLCSun City West, AZ · 8 clinicians
Hospital affiliation
- Wickenburg Community HospitalWickenburg, AZ
Industry payments (Open Payments)
- 2025$2,412 · 112 payments from 19 companies
- 2024$2,468 · 110 payments from 17 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Amgen Inc. | $859.52 | 43 |
| Abbvie Inc. | $403.59 | 20 |
| Ucb, Inc. | $378.67 | 10 |
| Glaxosmithkline, LLC. | $155.51 | 8 |
| Janssen Biotech, Inc. | $141.46 | 9 |
What the 2025 payments were for
- Food and Beverage$2,393 · 111 payments
- Education$19.25 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 114 physician assistants in Peoria · All physician assistants in Arizona