Andrew Timothy Kowalski, D.O.
NPI 1952841892ActiveIndividual· Surgery· Aberdeen, WA
Surgery (D.O.) with Ghch Physician Services, LLC, practicing in Aberdeen, Washington. 165 Medicare patients in 2024, $36,407 paid; nearly all of their 59 Part D prescriptions were generic (95%). Intuitive Surgical, Inc. was the largest of 5 companies reporting payments in 2025, $4,234 in all, mostly education. Lists Grays Harbor Community Hospital and 1 other hospital as hospital affiliations.
Overview
| NPI | 1952841892 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | D.O. |
| Sole proprietor | Yes |
| NPI issued | Feb 25, 2017 |
| Last updated in NPPES | Apr 5, 2023 |
| Certified by provider | Aug 31, 2022 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Surgery Primary | 208600000X | OP61300027 | WA |
| Surgery | 208600000X | 5101023269 | MI |
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 - General Surgery (WA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 165 |
|---|---|
| Services billed | 311 across 52 procedure codes |
| Paid by Medicare | $36,407 |
Part D prescriptions in 2024
| Prescriptions (claims) | 59 · 59 30-day fills |
|---|---|
| Patients | 32 |
| Total drug cost | $826.21 |
| Generic share | 95% of claims |
Education and affiliations
| Graduation year | 2017 |
|---|---|
| Medicare specialty | General Surgery |
Medical group
- Ghch Physician Services, LLCAberdeen, WA · 12 clinicians
Hospital affiliations
- Grays Harbor Community HospitalAberdeen, WA
- Summit Pacific Medical CenterElma, WA
Industry payments (Open Payments)
- 2025$4,234 · 12 payments from 5 companies
- 2024$67.90 · 2 payments from 2 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Intuitive Surgical, Inc. | $4,154 | 8 |
| Reprise Biomedical, Inc. | $25.10 | 1 |
| Hologic Sales and Service, LLC | $20.42 | 1 |
| Braintree Laboratories, Inc. | $19.03 | 1 |
| Smith+nephew, Inc. | $15.90 | 1 |
What the 2025 payments were for
- Education$2,500 · 1 payment
- Travel and Lodging$1,610 · 5 payments
- Food and Beverage$124.45 · 6 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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