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

FRESENIUS MEDICAL CARE ORANGE COUNTY, LLC
NPI 1285009704
Clinic/Center - End-Stage Renal Disease (ESRD) Treatment in Tustin, CA

Q: What is Fresenius Medical Care Orange County, LLC's specialty?

The primary specialty registered for this NPI is Clinic/Center, specializing in End-Stage Renal Disease (ESRD) Treatment, with taxonomy code 261QE0700X.

Active since December 09, 2015

535 E 1ST ST, TUSTIN, CA 92780(714) 730-1428(714) 730-7958 Get Directions Write a Review

NPPES record last updated: August 29, 2026. Verified against the NPPES registry weekly; last sync: September 13, 2026.

Record update history: Aug 29, 2026, Oct 17, 2023, Aug 12, 2021 and 1 more (4 updates tracked since 2015).

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About Fresenius Medical Care Orange County, Llc NPPES

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

FRESENIUS MEDICAL CARE ORANGE COUNTY, LLC (NPI 1285009704), doing business as Rai-east First-tustin, is a healthcare organization registered as an end-stage renal disease (esrd) treatment in Tustin, California and active in the NPI registry since December 2015. The organization lists Denise Wright, Vice President, as its authorized official.

NPPES Registry Identity

NPI1285009704

Entity TypeOrganization

Primary Taxonomy261QE0700X

Legal Business NameFRESENIUS MEDICAL CARE ORANGE COUNTY, LLC

Location Address535 E 1ST STTustin, CA 92780-3312

Mailing Address535 E 1st StTustin, CA 92780-3312 · (714) 730-1428 · Fax (714) 730-7958

Phone(714) 730-1428

Fax(714) 730-7958

Organization SubpartYesParent: Fresenius Medical Care Holdings, Inc.

Authorized OfficialDenise WrightVice President · (781) 676-5200

Enumeration DateDecember 9, 2015

Last NPPES UpdateAugust 29, 20264 updates tracked since enumeration

NPPES CertifiedAugust 29, 2026

✔ NPI 1285009704 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyClinic/Center · End-Stage Renal Disease (ESRD) TreatmentAmbulatory Health Care Facilities

Taxonomy Code261QE0700X

535 E 1ST ST, Tustin, CA 92780

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Other Names 1

Doing Business AsRai-east First-tustin

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include UnitedHealthcare.Insurance ›

Other Providers at the Same Location NPPES 2

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

CRYSTAL ARBIZU

Social Worker (Clinical)

535 E 1ST ST
TUSTIN, CA 92780

Orange County (714) 730-1428

JESSICA GARCIA

Social Worker (Clinical)

535 E 1ST ST
TUSTIN, CA 92780

Orange County (714) 730-1428

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 Fresenius Medical Care Orange County, LLC's NPI number?

The NPI number for Fresenius Medical Care Orange County, LLC is 1285009704. It was assigned to this organization in the NPPES registry on December 9, 2015. The provider is doing business as RAI-East First-Tustin.

Where is Fresenius Medical Care Orange County, LLC located?

Fresenius Medical Care Orange County, LLC is located at 535 E 1st St, Tustin, CA 92780. The listed phone number is (714) 730-1428.

What is Fresenius Medical Care Orange County, LLC's specialty?

The primary specialty registered for this NPI is Clinic/Center, specializing in End-Stage Renal Disease (ESRD) Treatment, with taxonomy code 261QE0700X.

What insurance does Fresenius Medical Care Orange County, LLC accept?

Health plans from UnitedHealthcare list Fresenius Medical Care Orange County, LLC as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for Fresenius Medical Care Orange County, LLC was last updated on August 29, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 19 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.