Ann M. Knowles, M.D.
NPI 1669404562ActiveIndividual· Internal Medicine· Everett, WA
Internal Medicine (M.D.) in Everett, Washington, trained at University of Nebraska College of Medicine (class of 1993). 297 Medicare patients in 2024, $30,494 paid; nearly all of their 959 Part D prescriptions were generic (93%).
Overview
| NPI | 1669404562 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Jul 7, 2006 |
| Last updated in NPPES | Jul 8, 2026 |
| Certified by provider | Jul 8, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | MD00035979 | 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 - Internal Medicine (WA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 297 |
|---|---|
| Services billed | 1,216 across 96 procedure codes |
| Paid by Medicare | $30,494 |
Part D prescriptions in 2024
| Prescriptions (claims) | 959 · 1,108 30-day fills |
|---|---|
| Patients | 517 |
| Total drug cost | $18,873 |
| Generic share | 93% of claims |
Education and affiliations
| Medical school | University of Nebraska College of Medicine |
|---|---|
| Graduation year | 1993 |
| Medicare specialty | Internal Medicine |
Medical group
- Optum Care Washington PLLCEverett, WA · 683 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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All 177 internal medicine physicians in Everett · All internal medicine physicians in Washington