Zachary D. Stiles
NPI 1407374747ActiveIndividual· Physician Assistant, Medical· Spokane, WA
Physician Assistant, Medical with Kaiser Foundation Health Plan of Washington, practicing in Spokane, Washington. Their prescriptions cost Medicare Part D more than their services did: $889,571 for 7,814 claims, against $31,605 paid for services in 2024. Intuitive Surgical, Inc. was the largest of 2 companies reporting payments in 2025, $2,242 in all, mostly education.
Overview
| NPI | 1407374747 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Sole proprietor | No |
| NPI issued | Sep 7, 2017 |
| Last updated in NPPES | May 20, 2025 |
| Certified by provider | May 20, 2025 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Physician Assistant, Medical Primary | 363AM0700X | PA60896690 | WA |
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 (WA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 128 |
|---|---|
| Services billed | 574 across 26 procedure codes |
| Paid by Medicare | $31,605 |
Part D prescriptions in 2024
| Prescriptions (claims) | 7,814 · 15,885 30-day fills |
|---|---|
| Patients | 515 |
| Total drug cost | $889,571 |
| Generic share | 87% of claims |
Education and affiliations
| Graduation year | 2018 |
|---|---|
| Medicare specialty | Physician Assistant |
| Telehealth | Offers telehealth |
Medical group
- Kaiser Foundation Health Plan of WashingtonBellevue, WA · 1,526 clinicians
Industry payments (Open Payments)
- 2025$2,242 · 3 payments from 2 companies
- 2024$1,156 · 59 payments from 20 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Intuitive Surgical, Inc. | $2,214 | 2 |
| Dexcom, Inc. | $28.36 | 1 |
What the 2025 payments were for
- Education$2,000 · 1 payment
- Travel and Lodging$213.76 · 1 payment
- Food and Beverage$28.36 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 86 physician assistants in Spokane · All physician assistants in Washington