ESTHER ZARECKI M.D.
NPI 1326570540
Family Medicine in Irvine, CA
About Esther Zarecki M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
ESTHER ZARECKI M.D. (NPI 1326570540) is an individual family medicine provider in Irvine, California, licensed in California (A158046) and active in the NPI registry since March 2017. She is enrolled in Medicare PECOS.
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 (PECOS)
Esther Zarecki M.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignments
3Medicare enrollment records show Esther Zarecki reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Anaheim, CA 92807
- Reassigned Medicare billing, California enrollment
- 13,921 clinicians in this Medicare group
Corona, CA 92882
- Reassigned Medicare billing, California enrollment
- 336 clinicians in this Medicare group
Moreno Valley, CA 92555
- 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 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.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 92604 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Medicare Quality Performance CMS QPP · MIPS
Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.
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.
IRVINE, CA 92604
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 Esther Zarecki's NPI number?
The NPI number for Esther Zarecki is 1326570540. It was assigned to this individual provider in the NPPES registry on March 28, 2017.
Where is Esther Zarecki located?
Esther Zarecki practices at 6 Willard, Irvine, CA 92604. The listed phone number is (833) 574-2273.
What is Esther Zarecki's specialty?
The primary specialty registered for this NPI is Family Medicine with taxonomy code 207Q00000X.
Is Esther Zarecki enrolled in Medicare?
Yes. Esther Zarecki is registered in the Medicare PECOS enrollment system.
Which organizations bill Medicare for Esther Zarecki's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Esther Zarecki reassigns Medicare benefits to 3 organizations: Southern California Permanente Medical Group (Anaheim, CA), County Of Riverside (Corona, CA) and Canyon Springs Medical Group, Inc. (Moreno 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 Esther Zarecki'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 Esther Zarecki was last updated on February 10, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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.
# Esther Zarecki, M.D. · NPI 1326570540
Family Medicine physician in Irvine, California. Individual provider, active in the CMS NPPES registry since March 28, 2017.
## Identity
- **NPI:** 1326570540 (Entity type: Individual)
- **Enumerated:** March 28, 2017
- **Primary specialty:** Family Medicine · taxonomy 207Q00000X
- **State license:** A158046 (California)
- **Sole proprietor:** No
## Practice location
- **Address:** 6 WILLARD, Irvine, CA 92604-4694
- **Phone:** (833) 574-2273
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 3 organizations under Medicare reassignment (form CMS-855R): Southern California Permanente Medical Group (NPI 1952333460, Anaheim, CA); County Of Riverside (NPI 1205090453, Corona, CA); Canyon Springs Medical Group, Inc. (NPI 1073669404, Moreno Valley, CA) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** February 10, 2022
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Source: [NPI Profile](https://npiprofile.com/npi/1326570540) · Data from the CMS NPPES public registry.