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CALVIN KUO-YANG CHEN MD
NPI 1831168111
Pediatrics in Tustin, CA

Active since March 17, 2006PECOS Enrolled
661 W 1ST ST STE G, TUSTIN, CA 92780(714) 665-9890(714) 665-9891 Get Directions Write a Review

NPPES record last updated: June 18, 2026. Verified against the NPPES registry weekly; last sync: July 26, 2026.

About Calvin Kuo-yang Chen Md NPPES

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

CALVIN KUO-YANG CHEN MD (NPI 1831168111) is an individual pediatrics provider in Tustin, California, licensed in California (A78000) and active in the NPI registry since March 2006. He is enrolled in Medicare PECOS and maintains 2 additional practice locations.

NPPES Registry Identity

NPI1831168111
Entity TypeIndividualMale
Primary Taxonomy208000000X
Provider Legal NameCALVIN KUO-YANG CHENCredential: MD
Location Address661 W 1ST ST STE GTustin, CA 92780-2939
Mailing Address661 W 1st St Ste GTustin, CA 92780-2939 · (714) 665-9890 · Fax (714) 665-9891
Phone(714) 665-9890
Fax(714) 665-9891
Sole ProprietorNo
Enumeration DateMarch 17, 2006
Last NPPES UpdateJune 18, 2026
NPPES CertifiedJune 18, 2026
✔ NPI 1831168111 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPediatricsAllopathic & Osteopathic Physicians
Taxonomy Code208000000X
Licenses✔ Licensed in CA · A78000✔ Licensed in WA · MD60082435
Definition

A pediatrician is concerned with the physical, emotional and social health of children from birth to young adulthood. Care encompasses a broad spectrum of health services ranging from preventive healthcare to the diagnosis and treatment of acute and chronic diseases. A pediatrician deals with biological, social and environmental influences on the developing child, and with the impact of disease and dysfunction on development.

661 W 1ST ST STE G, Tustin, CA 92780
Open in Google Maps ↗

Secondary Practice Locations 2

Location 111180 Warner Ave Ste 353Fountain Valley, CA 92708-4098 · Phone (714) 968-6789 · Fax (714) 202-2626
Location 29918 Katella Ave Ste A-CAnaheim, CA 92804-6465 · Phone (714) 644-9494 · Fax (714) 644-9894

Other Identifiers 1

Medicaid1831168111CA

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include BridgeSpan Health Company, Moda Health Plan, Inc., PacificSource Health Plans and more.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Calvin Kuo-yang 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.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 92780 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$96.36 typical visit price
range $62.96 – $187.60
Typical copayment $24.09 (range $15.74 – $46.90)
Most-billed visit code 99203
Established Patient
$109.96 typical visit price
range $20.84 – $153.61
Typical copayment $27.49 (range $5.21 – $38.40)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

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.

GOOD SHEPHERD MEDICAL CLINIC, INC
Family Medicine
661 W 1ST ST STE G
TUSTIN, CA 92780
Orange County (714) 665-9890
NICOLE ROLLE NOCHE NP
Nurse Practitioner (Women's Health)
661 W 1ST ST STE G
TUSTIN, CA 92780
Orange County (714) 665-9890
MR. SCOTT PHAT LETU PA-C
Physician Assistant
661 W 1ST ST STE G
TUSTIN, CA 92780
Orange County (800) 597-7977
STELA GEORGIEVA KOSTOVA-ABADJIEVA MD
Internal Medicine
661 W 1ST ST STE G
TUSTIN, CA 92780
Orange County (714) 665-9890
CHARISSE CHRISTIE MAGSAYSAY NP
Nurse Practitioner (Family)
661 W 1ST ST STE G
TUSTIN, CA 92780
Orange County (714) 665-9890
OSMAN NABIH DANDAN PA
Physician Assistant (Medical)
661 W 1ST ST STE G
TUSTIN, CA 92780
Orange County (714) 665-9890
MRS. GEORGINA CALDERON RN, DNP
Nurse Practitioner (Adult Health)
661 W 1ST ST STE G
TUSTIN, CA 92780
Orange County (714) 665-9890
CHARLOTTE NORDSTROM
Nurse Practitioner (Family)
661 W 1ST ST STE G
TUSTIN, CA 92780
Orange County (714) 665-9890

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 Calvin Chen's NPI number?

The NPI number for Calvin Chen is 1831168111. It was assigned to this individual provider in the NPPES registry on March 17, 2006.

Where is Calvin Chen located?

Calvin Chen practices at 661 W 1st St Ste G, Tustin, CA 92780. The listed phone number is (714) 665-9890.

What is Calvin Chen's specialty?

The primary specialty registered for this NPI is Pediatrics with taxonomy code 208000000X.

Is Calvin Chen enrolled in Medicare?

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

What insurance does Calvin Chen accept?

Health plans from BridgeSpan Health Company, Moda Health Plan, Inc., PacificSource Health Plans, Providence Health Plan and Regence BlueCross BlueShield of Oregon list Calvin 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 Calvin Chen was last updated on June 18, 2026. NPI Profile syncs with the weekly NPPES data releases published by CMS.