Washington · Lot 2026.10
Who owns physicaltherapy in Washington.
Every Medicare billing organisation physical therapists in Washington bill through, grouped into the platforms that own them where a public source shows the tie. 31 % of therapists in group practices bill through a therapy platform. Newest Medicare file published 27 July 2026.
- physical therapists in Washington group practices
- 4,375
- bill through 12 therapy platforms
- 1,369
- practices with 3+ PTs, no platform tie found
- 60
- billing organisations with PTs
- 465
01 / Platforms
The therapy platforms in Washington.
Physical therapists billing Medicare through each platform's entities in this state in the newest file, and their change over 12 months. Home-based and contract-therapy platforms bill from fewer offices than they serve.
| Platform | Kind | PTs | 12 months |
|---|---|---|---|
| ATI Physical Therapy | outpatient clinics | 570 | −18 |
| Luna | home-based | 286 | −23 |
| Confluent Health | outpatient clinics | 179 | +18 |
| Upstream Rehabilitation | outpatient clinics | 138 | −5 |
| U.S. Physical Therapy | outpatient clinics | 120 | +1 |
| Physical Rehabilitation Network (PRN) | outpatient clinics | 98 | −4 |
| EmpowerMe Wellness | therapy in senior living | 40 | −7 |
| Select Medical | outpatient clinics | 34 | +4 |
| HealthPRO Heritage | contract therapy | 18 | +2 |
| Alliance Physical Therapy Partners | outpatient clinics | 17 | +3 |
| Therapy Partners Group | outpatient clinics | 16 | −1 |
| FOX Rehabilitation | home-based | 10 | +10 |
02 / Areas
Where in Washington.
Physical therapist listings at current sites in CMS Care Compare, by three-digit ZIP area (named by its largest city), the share at a therapy platform's sites, and the largest platform there. Home-based platforms are left out: they list every therapist at one office.
| Area | PT listings | On platforms | Largest platform |
|---|---|---|---|
| Bellevue (ZIP 980) | 1,016 | 27 % | ATI Physical Therapy |
| Puyallup (ZIP 983) | 598 | 15 % | ATI Physical Therapy |
| Seattle (ZIP 981) | 580 | 11 % | ATI Physical Therapy |
| Everett (ZIP 982) | 517 | 17 % | U.S. Physical Therapy |
| Tacoma (ZIP 984) | 271 | 20 % | ATI Physical Therapy |
| Vancouver (ZIP 986) | 269 | 18 % | Confluent Health |
| Spokane (ZIP 992) | 230 | 7 % | Therapy Partners Group |
| Olympia (ZIP 985) | 179 | 22 % | ATI Physical Therapy |
| Kennewick (ZIP 993) | 150 | 21 % | Upstream Rehabilitation |
| Yakima (ZIP 989) | 61 | 0 % | — |
| Wenatchee (ZIP 988) | 59 | 0 % | — |
| Liberty Lake (ZIP 990) | 41 | 0 % | — |
03 / Checks
How far this state was checked.
Platform ties: Texas' table was built by hand; elsewhere ties are matched automatically. In 6 more states a random draw of ties and of practices with no tie found was searched by hand against a bar set before the search; a check not met is shown as not met, and its failed ties were taken out. The other 44 states have automatic checks only.
| Platform ties | automatic checks only |
|---|---|
| Practices with no tie found | automatic checks only |
The 2026 report, with the method and every check (PDF) →
Sources: Medicare Fee-For-Service Public Provider Enrollment (PECOS), published 27 July 2026; NPI registry (NPPES), published September 2026; Care Compare: Doctors and Clinicians, published 10 September 2026.
The state table is free to download and cite (CC BY 4.0): Zenodo (DOI 10.5281/zenodo.23218926, all versions) · Kaggle.
04 / Questions
Short answers.
Who owns physical therapy practices in Washington?
In Medicare's newest file, 1,369 of 4,375 physical therapists in Washington group practices (31 %) bill through 12 therapy platforms; the largest is ATI Physical Therapy with 570. 60 practices with 3 or more therapists have no platform tie found.
Where do these Washington numbers come from?
CMS's Medicare enrollment (PECOS), NPI registry (NPPES) and Care Compare files, with each platform tie taken from a public source such as a clinic list, press release or SEC filing, and dated by when it became public.
How accurate is the Washington data?
Platform ties: automatic checks only. Practices with no tie found: automatic checks only. Failed checks are shown, not hidden; the method is on the proof page.
Ask for the Washington workbook.
The same two workbooks as the Texas sample: every billing organisation by quarter, the practices with no tie found by name, and every tie with its source.