KATHRYN MENDOZA BRIONES RN, NP
NPI 1336691328
Nurse Practitioner - Critical Care Medicine in Orange, CA
About Kathryn Mendoza Briones Rn, Np NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
KATHRYN MENDOZA BRIONES RN, NP (NPI 1336691328) is an individual critical care medicine provider in Orange, California, licensed in California (95038030) and active in the NPI registry since October 2016. She is enrolled in Medicare PECOS, maintains a secondary practice location in New York, and is a graduate of Other (2018).
NPPES Registry Identity
Specialties & Licenses 3
Other Names 1
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
Kathryn Mendoza Briones Rn, Np 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 Kathryn Briones reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Orange, CA 92868
- Reassigned Medicare billing, California enrollment
- 525 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.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 92868 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 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
ORANGE, CA 92868
ORANGE, CA 92868
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 Kathryn Briones's NPI number?
The NPI number for Kathryn Briones is 1336691328. It was assigned to this individual provider in the NPPES registry on October 26, 2016. The provider is also known as Kaye Mendoza Briones Rn, Np.
Where is Kathryn Briones located?
Kathryn Briones practices at 101 The City Dr S, Orange, CA 92868. The listed phone number is (714) 456-8888.
What is Kathryn Briones's specialty?
The primary specialty registered for this NPI is Nurse Practitioner, specializing in Critical Care Medicine, with taxonomy code 363LC0200X.
Is Kathryn Briones enrolled in Medicare?
Yes. Kathryn Briones 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 Kathryn Briones's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Kathryn Briones reassigns Medicare benefits to Uc Regents (Orange, 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 Kathryn Briones'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 Kathryn Briones was last updated on August 11, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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.
# Kathryn Mendoza Briones, RN, NP · NPI 1336691328
Critical Care Medicine physician in Orange, California. Individual provider, active in the CMS NPPES registry since October 26, 2016.
## Identity
- **NPI:** 1336691328 (Entity type: Individual)
- **Enumerated:** October 26, 2016
- **Primary specialty:** Nurse Practitioner - Critical Care Medicine · taxonomy 363LC0200X
- **State license:** 95038030 (California)
- **Sole proprietor:** No
## Practice location
- **Address:** 101 THE CITY DR S, Orange, CA 92868-3201
- **Phone:** (714) 456-8888
## 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:** Uc Regents (NPI 1003864174, Orange, CA), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2018
## Record status
- **NPPES last updated:** August 11, 2026
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Source: [NPI Profile](https://npiprofile.com/npi/1336691328) · Data from the CMS NPPES public registry.