Kathryn Michelle Earhart, PA-C
NPI 1326500471ActiveIndividual· Physician Assistant· Litchfield Park, AZ
Physician Assistant (PA-C) with Arizona Digestive Health PC, practicing in Litchfield Park, Arizona. Their prescriptions cost Medicare Part D more than their services did: $628,112 for 3,182 claims, against $24,866 paid for services in 2024. Pfizer Inc. was the largest of 7 companies reporting payments in 2025, $405.23 in all, mostly food and beverage. Lists Yavapai Regional Medical Center as a hospital affiliation.
Overview
| NPI | 1326500471 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | PA-C |
| Sole proprietor | Yes |
| NPI issued | Apr 5, 2019 |
| Last updated in NPPES | Oct 6, 2022 |
| Certified by provider | Oct 6, 2022 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Physician Assistant Primary | 363A00000X | — | — |
| Student in an Organized Health Care Education/Training Program | 390200000X | — | — |
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 | 258 |
|---|---|
| Services billed | 1,744 across 26 procedure codes |
| Paid by Medicare | $24,866 |
Part D prescriptions in 2024
| Prescriptions (claims) | 3,182 · 5,508 30-day fills |
|---|---|
| Patients | 1,288 |
| Total drug cost | $628,112 |
| Generic share | 87% of claims |
Education and affiliations
| Graduation year | 2019 |
|---|---|
| Medicare specialty | Physician Assistant |
Medical group
- Arizona Digestive Health PCSun City, AZ · 136 clinicians
Hospital affiliation
- Yavapai Regional Medical CenterPrescott, AZ
Industry payments (Open Payments)
- 2025$405.23 · 13 payments from 7 companies
- 2024$205.10 · 8 payments from 6 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Pfizer Inc. | $159.15 | 3 |
| Urogen Pharma, Inc. | $77.47 | 2 |
| Sumitomo Pharma America, Inc. | $72.68 | 3 |
| Janssen Biotech, Inc. | $39.49 | 2 |
| Ferring Pharmaceuticals Inc. | $24.17 | 1 |
What the 2025 payments were for
- Food and Beverage$405.23 · 13 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 24 physician assistants in Litchfield Park · All physician assistants in Arizona