Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

KATRINA PALOMARES LAYONES
NPI 1871469866
Physician Assistant in West Hills, CA

Active since October 15, 2025
22110 ROSCOE BLVD, WEST HILLS, CA 91304(951) 318-7603(747) 800-6492 Get Directions Write a Review

NPPES record last updated: July 9, 2026. Verified against the NPPES registry weekly; last sync: August 09, 2026.

About Katrina Palomares Layones NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

KATRINA PALOMARES LAYONES (NPI 1871469866) is an individual physician assistant in West Hills, California and active in the NPI registry since October 2025.

NPPES Registry Identity

NPI1871469866
Entity TypeIndividualFemale
Primary Taxonomy363A00000X
Provider Legal NameKATRINA PALOMARES LAYONES
Location Address22110 ROSCOE BLVDWest Hills, CA 91304-3845
Mailing Address12794 Ross StMoreno Valley, CA 92553-9334 · (951) 318-7603
Fax(747) 800-6492
Sole ProprietorYes
Enumeration DateOctober 15, 2025
Last NPPES UpdateJuly 9, 2026
NPPES CertifiedJuly 9, 2026
NPI 1871469866 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

Primary SpecialtyPhysician AssistantPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363A00000X
Definition
A physician assistant is a person who has successfully completed an accredited education program for physician assistant, is licensed by the state and is practicing within the scope of that license. Physician assistants are formally trained to perform many of the routine, time-consuming tasks a physician can do. In some states, they may prescribe medications. They take medical histories, perform physical exams, order lab tests and x-rays, and give inoculations. Most states require that they work under the supervision of a physician.
22110 ROSCOE BLVD, West Hills, CA 91304

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

Internal Medicine (Gastroenterology)
22110 ROSCOE BLVD, SUITE 201
CANOGA PARK, CA 91304
Case Manager/Care Coordinator
22110 ROSCOE BLVD, SUITE 204
CANOGA PARK, CA 91304
Podiatrist
22110 ROSCOE BLVD, #201
CANOGA PARK, CA 91304
Chiropractor
22110 ROSCOE BLVD, #103
WEST HILLS, CA 91304
Nurse Practitioner (Women's Health)
22110 ROSCOE BLVD, SUITE 104
WEST HILLS, CA 91304
Case Management
22110 ROSCOE BLVD, SUITE 204
CANOGA PARK, CA 91304
Counselor (Addiction (Substance Use Disorder))
22110 ROSCOE BLVD
CANOGA PARK, CA 91304
Physical Medicine & Rehabilitation (Pain Medicine)
22110 ROSCOE BLVD, SUITE 304
WEST HILLS, CA 91304

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 Katrina Layones's NPI number?

The NPI number for Katrina Layones is 1871469866. It was assigned to this individual provider in the NPPES registry on October 15, 2025.

Where is Katrina Layones located?

Katrina Layones practices at 22110 Roscoe Blvd, West Hills, CA 91304. The listed phone number is (951) 318-7603.

What is Katrina Layones's specialty?

The primary specialty registered for this NPI is Physician Assistant with taxonomy code 363A00000X.

When was this NPI record last updated?

The NPPES record for Katrina Layones was last updated on July 9, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 39 days 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.