PATRICK W WILLSON OT
NPI 1790193860
Occupational Therapist in Fountain Valley, CA
About Patrick W Willson Ot NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
PATRICK W WILLSON OT (NPI 1790193860) is an individual occupational therapist in Fountain Valley, California, licensed in California (14503) and active in the NPI registry since August 2014. He is a graduate of Other (2014).
NPPES Registry Identity
Specialties & Licenses
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Patrick W Willson Ot is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignments
3Medicare enrollment records show Patrick Willson reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Fountain Valley, CA 92708
- Reassigned Medicare billing, California enrollment
- 176 clinicians in this Medicare group
Fountain Valley, CA 92708
- Reassigned Medicare billing, California enrollment
- 286 clinicians in this Medicare group
Westminster, CA 92683
- Reassigned Medicare billing, California enrollment
- Medicare enrollment name: Select Cs Physical Therapy PC
- 217 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Other Providers at the Same Location NPPES 5
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
FOUNTAIN VALLEY, CA 92708
FOUNTAIN VALLEY, CA 92708
FOUNTAIN VALLEY, CA 92708
Frequently Asked Questions NPPES & CMS
Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.
What is Patrick Willson's NPI number?
The NPI number for Patrick Willson is 1790193860. It was assigned to this individual provider in the NPPES registry on August 1, 2014.
Where is Patrick Willson located?
Patrick Willson practices at 10540 Talbert Ave Ste 250W, Fountain Valley, CA 92708. The listed phone number is (714) 964-0727.
What is Patrick Willson's specialty?
The primary specialty registered for this NPI is Occupational Therapist with taxonomy code 225X00000X.
Is Patrick Willson enrolled in Medicare?
Yes. Patrick Willson is registered in the Medicare PECOS enrollment system.
Which organizations bill Medicare for Patrick Willson's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Patrick Willson reassigns Medicare benefits to 3 organizations: Select Cal Physical Therapy PC (Fountain Valley, CA), California Rehabilitation & Sports Therapy A California Physical Ther (Fountain Valley, CA) and Select Cs Physical Therapy, P.C. (Westminster, CA). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Patrick Willson's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
When was this NPI record last updated?
The NPPES record for Patrick Willson was last updated on June 22, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.