DR. CATHERINE J CHEN MD
NPI 1124373329
Urology - Pediatric Urology in Loma Linda, CA

Q: What is Catherine Chen's NPI number?

The NPI number for Catherine Chen is 1124373329. It was assigned to this individual provider in the NPPES registry on July 13, 2012.

Q: What is Catherine Chen's specialty?

The primary specialty registered for this NPI is Urology, specializing in Pediatric Urology, with taxonomy code 2088P0231X.

Q: When was this NPI record last updated?

The NPPES record for Catherine Chen was last updated on June 28, 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.

Active since July 13, 2012PECOS Enrolled

11370 ANDERSON ST STE 2050, LOMA LINDA, CA 92354(909) 558-2735(909) 558-2731 Get Directions Write a Review

NPPES record last updated: June 28, 2023. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Jun 5, 2023, Nov 11, 2019, May 28, 2019 (3 updates tracked since 2019).

On this page

About Dr. Catherine J Chen Md NPPES

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

DR. CATHERINE J CHEN MD (NPI 1124373329) is an individual pediatric urology provider in Loma Linda, California, licensed in California (161990) and active in the NPI registry since July 2012. She is enrolled in Medicare PECOS and maintains a secondary practice location in Murrieta.

NPPES Registry Identity

NPI1124373329

Entity TypeIndividualFemale

Primary Taxonomy2088P0231X

Provider Legal NameDR. CATHERINE J CHENCredential: MD

Location Address11370 ANDERSON ST STE 2050Loma Linda, CA 92354-3450

Mailing Address11370 Anderson St Ste 2050Loma Linda, CA 92354-3450 · (909) 558-2799 · Fax (909) 558-2731

Phone(909) 558-2735

Fax(909) 558-2731

Sole ProprietorNo

Enumeration DateJuly 13, 2012

Last NPPES UpdateJune 28, 20233 updates tracked since enumeration

✔ NPI 1124373329 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyUrology · Pediatric UrologyAllopathic & Osteopathic Physicians

Taxonomy Code2088P0231X

License✔ Licensed in CA · 161990

Definition

Surgeons who can diagnose, treat, and manage children's urinary and genital problems. A pediatric urologist devotes a minimum of 50% of his or her practice to the urologic problems of infants, children, and adolescents. Pediatric urologists generally provide the following services: the evaluation and management of voiding disorders; vesicoureteral reflux, and urinary tract infections that require surgery; surgical reconstruction of the urinary tract (kidneys, ureters, and bladder) including genital abnormalities, hypospadias, and intersex conditions; surgery for groin conditions in childhood and adolescence (undescended testes, hydrocele/hernia, varicocele).

11370 ANDERSON ST STE 2050, Loma Linda, CA 92354

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Secondary Practice Location 1

Location 128078 Baxter Rd Ste 110Murrieta, CA 92563-1403 · Phone (909) 558-2799 · Fax (909) 558-2704

Other Identifiers 1

Medicaid837735AZ

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Sanford Health Plan.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. Catherine J Chen Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignments

Medicare enrollment records show Catherine Chen reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Faculty Physicians And Surgeons Of Llusm

Same address

Neurological Surgery

11370 ANDERSON ST, SUITE 2600
Loma Linda, CA 92354

Reassigned Medicare billing, California enrollment
2,584 clinicians in this Medicare group

NPI 1194775122 (909) 558-2055

Southern California Permanente Medical Group

10.0 mi

Health Maintenance Organization

9961 SIERRA AVE
Fontana, CA 92335

Reassigned Medicare billing, California enrollment
Also billed through NPI 1952333460 (California)
5,228 clinicians in this Medicare group

NPI 1689606196 (909) 427-3910

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

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.

FACULTY PHYSICIANS AND SURGEONS OF LLUSM

Urology (Pediatric Urology)

11370 ANDERSON ST STE 2050
LOMA LINDA, CA 92354

San Bernardino County (909) 558-2799

DR. JOSHUA DAVID CHAMBERLIN M.D.

Urology (Pediatric Urology)

11370 ANDERSON ST STE 2050
LOMA LINDA, CA 92354

San Bernardino County (909) 558-2799

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 Catherine Chen's NPI number?

The NPI number for Catherine Chen is 1124373329. It was assigned to this individual provider in the NPPES registry on July 13, 2012.

Where is Catherine Chen located?

Catherine Chen practices at 11370 Anderson St Ste 2050, Loma Linda, CA 92354. The listed phone number is (909) 558-2735.

What is Catherine Chen's specialty?

The primary specialty registered for this NPI is Urology, specializing in Pediatric Urology, with taxonomy code 2088P0231X.

Is Catherine Chen enrolled in Medicare?

Yes. Catherine Chen is registered in the Medicare PECOS enrollment system.

Which organizations bill Medicare for Catherine Chen's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Catherine Chen reassigns Medicare benefits to 2 organizations: Faculty Physicians And Surgeons Of Llusm (Loma Linda, CA) and Southern California Permanente Medical Group (Fontana, 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 Catherine Chen's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Catherine Chen accept?

Health plans from Sanford Health Plan list Catherine Chen 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 Catherine Chen was last updated on June 28, 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.