William D. Lack, M.D.
NPI 1922204635ActiveIndividual· Orthopaedic Surgery, Orthopaedic Trauma· Seattle, WA
Orthopaedic Surgery, Orthopaedic Trauma (M.D.) in Seattle, Washington, trained at Harvard Medical School (class of 2007). Medicare paid $35,774 for services to 68 patients in 2024. Stryker Corporation reported $81.34 in payments in 2025, mostly food and beverage.
Overview
| NPI | 1922204635 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Jun 21, 2007 |
| Last updated in NPPES | Aug 9, 2018 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Orthopaedic Surgery, Orthopaedic Trauma Primary | 207XX0801X | MD60872422 | WA |
| Orthopaedic Surgery | 207X00000X | MD60872422 | WA |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Oct 9, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 4, 2026 | No match | — |
| New York OMIG · Nov 4, 2026 | No match | — |
| Ohio Medicaid · Nov 4, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 4, 2026 | No match | — |
| Washington HCA · Nov 4, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Orthopedic Surgery (WA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 68 |
|---|---|
| Services billed | 139 across 34 procedure codes |
| Paid by Medicare | $35,774 |
Education and affiliations
| Medical school | Harvard Medical School |
|---|---|
| Graduation year | 2007 |
| Medicare specialty | Orthopedic Surgery |
| Telehealth | Offers telehealth |
Medical group
- The Association of University PhysiciansSeattle, WA · 3,535 clinicians
Hospital affiliation
- University of Washington Medical CtrSeattle, WA
Industry payments (Open Payments)
- 2025$81.34 · 1 payment from 1 company
- 2024$2,757 · 6 payments from 2 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Stryker Corporation | $81.34 | 1 |
What the 2025 payments were for
- Food and Beverage$81.34 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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