Mark C. Davis, PA
NPI 1508928714ActiveIndividual· Physician Assistant, Medical· Lake Oswego, OR
Physician Assistant, Medical (PA) with Clear Choice Dermatology, practicing in Lake Oswego, Oregon. 186 Medicare patients in 2024, $79,772 paid; nearly all of their 896 Part D prescriptions were generic (94%). Janssen Biotech, Inc. was the largest of 15 companies reporting payments in 2025, $2,700 in all, mostly food and beverage.
Overview
| NPI | 1508928714 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | PA |
| Sole proprietor | No |
| NPI issued | Dec 14, 2006 |
| Last updated in NPPES | Dec 24, 2024 |
| Certified by provider | Dec 24, 2024 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Physician Assistant, Medical Primary | 363AM0700X | PA01047 | OR |
| Physician Assistant, Surgical | 363AS0400X | PA01047 | OR |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Oct 9, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 10, 2026 | No match | — |
| New York OMIG · Nov 10, 2026 | No match | — |
| Ohio Medicaid · Nov 10, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 10, 2026 | No match | — |
| Washington HCA · Nov 10, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Physician Assistant (OR) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 186 |
|---|---|
| Services billed | 1,493 across 35 procedure codes |
| Paid by Medicare | $79,772 |
Part D prescriptions in 2024
| Prescriptions (claims) | 896 · 1,092 30-day fills |
|---|---|
| Patients | 266 |
| Total drug cost | $98,875 |
| Generic share | 94% of claims |
Education and affiliations
| Graduation year | 2004 |
|---|---|
| Medicare specialty | Physician Assistant |
Medical group
- Clear Choice DermatologySandy, OR · 48 clinicians
Industry payments (Open Payments)
- 2025$2,700 · 156 payments from 15 companies
- 2024$3,232 · 148 payments from 15 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Janssen Biotech, Inc. | $515.84 | 30 |
| Abbvie Inc. | $385.80 | 22 |
| Novartis Pharmaceuticals Corporation | $374.01 | 28 |
| Arcutis Biotherapeutics, Inc. | $274.08 | 20 |
| Regeneron Healthcare Solutions, Inc. | $244.49 | 7 |
What the 2025 payments were for
- Food and Beverage$2,505 · 154 payments
- Education$195.57 · 2 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
Other Physician Assistant, Medical providers in Lake Oswego
- 1518262013
- 1679255004
- 1336411412