DR. KEVIN BRECK WESTBROOK M.D.
NPI 1508445859
Family Medicine in Simi Valley, CA
About Dr. Kevin Breck Westbrook M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. KEVIN BRECK WESTBROOK M.D. (NPI 1508445859) is an individual family medicine provider in Simi Valley, California, licensed in California (A196164) and active in the NPI registry since April 2021. He is enrolled in Medicare PECOS and is a graduate of Un Of California, Riverside, School Of Medicine (2021).
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 and accepts Medicare assignment
Dr. Kevin Breck Westbrook M.d. 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 Reassignments
2Medicare enrollment records show Kevin Westbrook reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Simi Valley, CA 93065
- Reassigned Medicare billing, California enrollment
- 139 clinicians in this Medicare group
Simi Valley, CA 93065
- Reassigned Medicare billing, California enrollment
- 5 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
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.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 93065 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Other Providers at the Same Location NPPES 3
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
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 Kevin Westbrook's NPI number?
The NPI number for Kevin Westbrook is 1508445859. It was assigned to this individual provider in the NPPES registry on April 5, 2021.
Where is Kevin Westbrook located?
Kevin Westbrook practices at 2755 Alamo St Ste 201, Simi Valley, CA 93065. The listed phone number is (805) 988-7070.
What is Kevin Westbrook's specialty?
The primary specialty registered for this NPI is Family Medicine with taxonomy code 207Q00000X.
Is Kevin Westbrook enrolled in Medicare?
Yes. Kevin Westbrook 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 organizations bill Medicare for Kevin Westbrook's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Kevin Westbrook reassigns Medicare benefits to 2 organizations: Adventist Health Physicians Network (Simi Valley, CA) and Simi Medical Group, Inc (Simi Valley, 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 Kevin Westbrook'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 Kevin Westbrook was last updated on October 23, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 23 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.
# Dr. Kevin Breck Westbrook, M.D. · NPI 1508445859
Family Medicine physician in Simi Valley, California. Individual provider, active in the CMS NPPES registry since April 5, 2021.
## Identity
- **NPI:** 1508445859 (Entity type: Individual)
- **Enumerated:** April 5, 2021
- **Primary specialty:** Family Medicine · taxonomy 207Q00000X
- **State license:** A196164 (California)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 2755 ALAMO ST STE 201, Simi Valley, CA 93065-1311
- **Phone:** (805) 988-7070
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 2 organizations under Medicare reassignment (form CMS-855R): Adventist Health Physicians Network (NPI 1144075938, Simi Valley, CA); Simi Medical Group, Inc (NPI 1346768025, Simi Valley, CA) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Un Of California, Riverside, School Of Medicine, class of 2021
## Record status
- **NPPES last updated:** October 23, 2024
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Source: [NPI Profile](https://npiprofile.com/npi/1508445859) · Data from the CMS NPPES public registry.