California · Lot 2026.10
Who owns physicaltherapy in California.
Every Medicare billing organisation physical therapists in California bill through, grouped into the platforms that own them where a public source shows the tie. 29 % of therapists in group practices bill through a therapy platform. Newest Medicare file published 27 July 2026.
- physical therapists in California group practices
- 10,988
- bill through 12 therapy platforms
- 3,176
- practices with 3+ PTs, no platform tie found
- 433
- billing organisations with PTs
- 1,653
01 / Platforms
The therapy platforms in California.
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 |
|---|---|---|---|
| Luna | home-based | 1,354 | +27 |
| Physical Rehabilitation Network (PRN) | outpatient clinics | 480 | +44 |
| Therapy Partners Group | outpatient clinics | 466 | +12 |
| Select Medical | outpatient clinics | 399 | +41 |
| EmpowerMe Wellness | therapy in senior living | 253 | −9 |
| Confluent Health | outpatient clinics | 195 | +39 |
| Evolution Physical Therapy and True Sports (O2) | outpatient clinics | 103 | +11 |
| Doctors of Physical Therapy | outpatient clinics | 79 | +7 |
| Origin | outpatient clinics | 48 | +14 |
| Alliance Physical Therapy Partners | outpatient clinics | 47 | −2 |
| FOX Rehabilitation | home-based | 26 | +24 |
| Genesis HealthCare | contract therapy | 1 | −16 |
02 / Areas
Where in California.
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 |
|---|---|---|---|
| Irvine (ZIP 926) | 796 | 35 % | EmpowerMe Wellness |
| San Diego (ZIP 921) | 678 | 13 % | Physical Rehabilitation Network (PRN) |
| Carlsbad (ZIP 920) | 591 | 21 % | Physical Rehabilitation Network (PRN) |
| Los Angeles (ZIP 900) | 471 | 16 % | Select Medical |
| Walnut Creek (ZIP 945) | 465 | 17 % | Select Medical |
| Thousand Oaks (ZIP 913) | 412 | 17 % | Confluent Health |
| Culver City (ZIP 902) | 398 | 32 % | Evolution Physical Therapy and True Sports (O2) |
| Anaheim (ZIP 928) | 327 | 28 % | Physical Rehabilitation Network (PRN) |
| Riverside (ZIP 925) | 285 | 26 % | Confluent Health |
| Roseville (ZIP 956) | 281 | 17 % | Alliance Physical Therapy Partners |
| Los Gatos (ZIP 950) | 268 | 16 % | Therapy Partners Group |
| Sunnyvale (ZIP 940) | 266 | 10 % | Select Medical |
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 | 16 of 23, bar 20: not met |
|---|---|
| Practices with no tie found | 43 of 50, bar 45: not met |
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 California?
In Medicare's newest file, 3,176 of 10,988 physical therapists in California group practices (29 %) bill through 12 therapy platforms; the largest is Luna with 1,354. 433 practices with 3 or more therapists have no platform tie found.
Where do these California 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 California data?
Platform ties: 16 of 23, bar 20: not met. Practices with no tie found: 43 of 50, bar 45: not met. Failed checks are shown, not hidden; the method is on the proof page.
Ask for the California 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.