David A. Knowles, PA-C
NPI 1649560517ActiveIndividual· Physician Assistant· Kamuela, HI
Physician Assistant (PA-C) with Hawaii Permanente Medical Group Inc, practicing in Kamuela, Hawaii. Their prescriptions cost Medicare Part D more than their services did: $31,771 for 1,026 claims, against $840.90 paid for services in 2024.
Overview
| NPI | 1649560517 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | PA-C |
| Sole proprietor | No |
| NPI issued | Apr 13, 2011 |
| Last updated in NPPES | Jun 21, 2021 |
| Certified by provider | Jun 21, 2021 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Physician Assistant Primary | 363A00000X | AMD-424 | HI |
| Physician Assistant | 363A00000X | — | — |
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 (HI) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 17 |
|---|---|
| Services billed | 37 across 6 procedure codes |
| Paid by Medicare | $840.90 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,026 · 1,616 30-day fills |
|---|---|
| Patients | 327 |
| Total drug cost | $31,771 |
| Generic share | 90% of claims |
Education and affiliations
| Graduation year | 2010 |
|---|---|
| Medicare specialty | Physician Assistant |
Medical group
- Hawaii Permanente Medical Group IncHonolulu, HI · 704 clinicians
Industry payments (Open Payments)
None reported for 2025 or 2024.
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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