DR. CHUNG-JIAH JUSTIN CHEN MD
NPI 1548792377
Internal Medicine - Hematology & Oncology in San Diego, CA

Active since March 30, 2017PECOS EnrolledAccepts Medicare Assignment
16950 VIA TAZON, SAN DIEGO, CA 92127(800) 926-8273(888) 539-8781 Get Directions Write a Review

NPPES record last updated: November 12, 2025. Verified against the NPPES registry weekly; last sync: October 04, 2026.

Record update history: Nov 12, 2025, May 28, 2025, Oct 11, 2024 and 5 more (8 updates tracked since 2017).

About Dr. Chung-jiah Justin Chen Md NPPES

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

DR. CHUNG-JIAH JUSTIN CHEN MD (NPI 1548792377) is an individual hematology & oncology provider in San Diego, California, licensed in California (A158441) and active in the NPI registry since March 2017. He is enrolled in Medicare PECOS, maintains a secondary practice location in San Diego, and is a graduate of Baylor College Of Medicine (2017).

NPPES Registry Identity

NPI1548792377
Entity TypeIndividualMale
Primary Taxonomy207RH0003X
Provider Legal NameDR. CHUNG-JIAH JUSTIN CHENCredential: MD
Location Address16950 VIA TAZONSan Diego, CA 92127-1607
Mailing AddressFile 57326Los Angeles, CA 90074-7326
Fax(888) 539-8781
Sole ProprietorNo
Medical School CMSBaylor College Of MedicineGraduated 2017
Enumeration DateMarch 30, 2017
Last NPPES UpdateNovember 12, 20258 updates tracked since enumeration
NPPES CertifiedNovember 12, 2025
✔ NPI 1548792377 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · Hematology & OncologyAllopathic & Osteopathic Physicians
Taxonomy Code207RH0003X
License✔ Licensed in CA · A158441
Definition
An internist doctor of osteopathy that specializes in the treatment of the combination of hematology and oncology disorders. A doctor of osteopathy that is board eligible/certified by the American Osteopathic Board of Internal Medicine WAS able to obtain a Certificate of Special Qualifications in the field of Hematology and Oncology. The Certificate is NO longer offered.
16950 VIA TAZON, San Diego, CA 92127

Secondary Practice Location 1

Location 1200 W Arbor DrSan Diego, CA 92103-9000 · Phone (800) 926-8273 · Fax (888) 539-8781

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Dr. Chung-jiah Justin Chen Md is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID3678998663
PECOS Enrollment IDI20200807001881
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 92127 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
$184.71 typical visit price
range $62.10 – $184.71
Typical copayment $46.17 (range $15.52 – $46.17)
Most-billed visit code 99205
Established Patient
$108.42 typical visit price
range $20.62 – $151.42
Typical copayment $27.10 (range $5.15 – $37.85)
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.

Physician Assistant
16950 VIA TAZON
SAN DIEGO, CA 92127
Family Medicine
16950 VIA TAZON
SAN DIEGO, CA 92127
Physician Assistant
16950 VIA TAZON
SAN DIEGO, CA 92127
Pediatrics
16950 VIA TAZON
SAN DIEGO, CA 92127
Internal Medicine
16950 VIA TAZON
SAN DIEGO, CA 92127
Physical Therapist
16950 VIA TAZON
SAN DIEGO, CA 92127
Physical Therapist
16950 VIA TAZON
SAN DIEGO, CA 92127
Speech-Language Pathologist
16950 VIA TAZON
SAN DIEGO, CA 92127

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 Chung-jiah Chen's NPI number?

The NPI number for Chung-jiah Chen is 1548792377. It was assigned to this individual provider in the NPPES registry on March 30, 2017.

Where is Chung-jiah Chen located?

Chung-jiah Chen practices at 16950 Via Tazon, San Diego, CA 92127. The listed phone number is (800) 926-8273.

What is Chung-jiah Chen's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Hematology & Oncology, with taxonomy code 207RH0003X.

Is Chung-jiah Chen enrolled in Medicare?

Yes. Chung-jiah Chen is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

When was this NPI record last updated?

The NPPES record for Chung-jiah Chen was last updated on November 12, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 months 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.