KATHERINE YI FNP
NPI 1154033371
Nurse Practitioner - Family in Costa Mesa, CA
About Katherine Yi Fnp NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
KATHERINE YI FNP (NPI 1154033371) is an individual family provider in Costa Mesa, California, licensed in California (95022842) and active in the NPI registry since December 2022. She is enrolled in Medicare PECOS.
NPPES Registry Identity
Specialties & Licenses
Group Practice 1
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Katherine Yi Fnp is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignments
2Medicare enrollment records show Katherine Yi reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Costa Mesa, CA 92626
- Reassigned Medicare billing, California enrollment
- 38 clinicians in this Medicare group
Fulton, MD 20759
- Reassigned Medicare billing, California enrollment
- 26 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 8
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 92626 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 7
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
COSTA MESA, CA 92626
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 Katherine Yi's NPI number?
The NPI number for Katherine Yi is 1154033371. It was assigned to this individual provider in the NPPES registry on December 19, 2022.
Where is Katherine Yi located?
Katherine Yi practices at 150 Paularino Ave Ste D182, Costa Mesa, CA 92626. The listed phone number is (949) 749-3425.
What is Katherine Yi's specialty?
The primary specialty registered for this NPI is Nurse Practitioner, specializing in Family, with taxonomy code 363LF0000X.
Is Katherine Yi enrolled in Medicare?
Yes. Katherine Yi is registered in the Medicare PECOS enrollment system.
Which organizations bill Medicare for Katherine Yi's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Katherine Yi reassigns Medicare benefits to 2 organizations: Global Transitional Care, LLC (Costa Mesa, CA) and Easy Health Medical Solutions PC (Fulton, MD). 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 Katherine Yi'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 Katherine Yi was last updated on March 27, 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.