Ethan Ross Yap Dumayas, PA-C
NPI 1679175749ActiveIndividual· Physician Assistant· Johnstown, PA
Physician Assistant (PA-C) with Phoenix Rehabilitation and Health Services Inc and 1 other group, practicing in Johnstown, Pennsylvania. Their prescriptions cost Medicare Part D more than their services did: $104,426 for 2,153 claims, against $29,784 paid for services in 2024. Astrazeneca Pharmaceuticals LP was the largest of 4 companies reporting payments in 2025, $613.54 in all, mostly food and beverage. Lists Upmc Altoona as a hospital affiliation.
Overview
| NPI | 1679175749 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | PA-C |
| Sole proprietor | No |
| NPI issued | Nov 12, 2020 |
| Last updated in NPPES | Nov 12, 2020 |
| Certified by provider | Nov 10, 2020 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Physician Assistant Primary | 363A00000X | MA062011 | PA |
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 (PA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 301 |
|---|---|
| Services billed | 721 across 21 procedure codes |
| Paid by Medicare | $29,784 |
Part D prescriptions in 2024
| Prescriptions (claims) | 2,153 · 3,389 30-day fills |
|---|---|
| Patients | 694 |
| Total drug cost | $104,426 |
| Generic share | 93% of claims |
Education and affiliations
| Graduation year | 2020 |
|---|---|
| Medicare specialty | Physician Assistant |
| Telehealth | Offers telehealth |
Medical groups
- Phoenix Rehabilitation and Health Services IncCranberry Twp, PA · 2,800 clinicians
- Upmc Altoona Regional Health Services, Inc.Altoona, PA · 187 clinicians
Hospital affiliation
- Upmc AltoonaAltoona, PA
Other facilities
- Upmc Home Healthcare of Central PennsylvaniaHome health agency · Altoona, PA
Industry payments (Open Payments)
- 2025$613.54 · 6 payments from 4 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Astrazeneca Pharmaceuticals LP | $250.00 | 2 |
| Lilly USA, LLC | $141.31 | 2 |
| Pfizer Inc. | $125.00 | 1 |
| Sanofi-Aventis U.S. LLC | $97.23 | 1 |
What the 2025 payments were for
- Food and Beverage$613.54 · 6 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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