LOUISE ASHLEY DIZON BRENNAN OTR/L
NPI 1881450807
Occupational Therapist in Valencia, CA
About Louise Ashley Dizon Brennan Otr/l NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
LOUISE ASHLEY DIZON BRENNAN OTR/L (NPI 1881450807) is an individual occupational therapist in Valencia, California, licensed in California (26120) and active in the NPI registry since February 2024. She maintains a secondary practice location in Torrance and is a graduate of Other (2023).
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Location 1
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Louise Ashley Dizon Brennan Otr/l is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Medicare Billing Reassignment
Medicare enrollment records show Louise Ashley Brennan reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Van Nuys, CA 91405
- Reassigned Medicare billing, California enrollment
- 128 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.
Areas of Expertise CMS Part B claims 3
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Other Providers at the Same Location NPPES 13
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
VALENCIA, CA 91355
VALENCIA, CA 91355
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 Louise Ashley Brennan's NPI number?
The NPI number for Louise Ashley Brennan is 1881450807. It was assigned to this individual provider in the NPPES registry on February 27, 2024.
Where is Louise Ashley Brennan located?
Louise Ashley Brennan practices at 24051 Newhall Ranch Rd, Valencia, CA 91355. The listed phone number is (661) 254-6364.
What is Louise Ashley Brennan's specialty?
The primary specialty registered for this NPI is Occupational Therapist with taxonomy code 225X00000X.
Is Louise Ashley Brennan enrolled in Medicare?
Yes. Louise Ashley Brennan is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
Which organization bills Medicare for Louise Ashley Brennan's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Louise Ashley Brennan reassigns Medicare benefits to Regents Of The University Of California (Van Nuys, CA). The 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 Louise Ashley Brennan'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 Louise Ashley Brennan was last updated on June 2, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 16 months 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.