Chung-Jiah Justin Chen, MD
Hematology & Oncology Physician · San Diego, CA
Chung-Jiah Justin Chen, MD is a hematology & oncology physician with a practice address in San Diego, California, and NPI 1548792377, issued on Mar 30, 2017. Check the license (California A158441, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Chung-Jiah Justin Chen
- Credential
- MD
- Primary taxonomy
- Hematology & Oncology Physician 207RH0003X
- License number
- A158441 CA
Self-reported in NPPES; status is on the state search - Practice location
- 16950 Via Tazon, San Diego, CA 92127
- Phone
- (800) 926-8273
- Enumerated
- Mar 30, 2017
- Record last updated
- Nov 12, 2025
- Fax
- (888) 539-8781
- Medicare enrollment
- Enrolled (PECOS I20200807001881); accepts Medicare assignment
- Medical or professional school
- Baylor College Of Medicine, 2017
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest hematology & oncology physician records → All 1,583 in California → Look up another NPI →
Also registered at 16950 Via Tazon
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Amy Abola, M.D.Family Medicine Physician1306854898
- Marie Adamson, M.D.Family Medicine Physician1518938950
- Lanza AttishaPhysical Therapist1396599874
- Stephen Ball, DPTPhysical Therapist1437644044
- Stephen Beeson, M.D.Family Medicine Physician1740390186
- Christopher Best, DPTPhysical Therapist1942594486
Verify Chung-Jiah Justin Chen in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A158441Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Bills Medicare through one group practice
- Regents OF The University OF CaliforniaSan Diego, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Chung-Jiah Justin Chen among 1,583 hematology & oncology physician records in California
Chung-Jiah Justin Chen, MD is one of 1,583 hematology & oncology physician records with a practice address in California. 83% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2017, is newer than 89% of them.
- NPI issued2017 · 89% of these records are older, 8% newer
- In a Medicare fileYes · 83% of these records are
- In the CMS Doctors and Clinicians fileYes · 71% of these records are
- Graduated2017 · median 2003 among the 1,124 with a school on file
- Record last updated2025 · 58% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RH0003X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Hematology & Oncology Physician providers in California
There are 1,583 hematology & oncology physician records in California.
All 1,583 in California → Every provider in San Diego → Hematology & Oncology Physician nationwide →
The 8 hematology & oncology physician records with the nearest ZIP codes
- Steven Eisenberg, D.O.San Diego, CA 921271831162627
- Joel Lamon, MDSan Diego, CA 921271699721035
- Rajesh Belani, M.D.San Diego, CA 921231578509113
- James Coggan, D.O.San Diego, CA 921231508246042
- Jennifer Fisher, M.D.San Diego, CA 921231710156807
- Dana Glenn, M.D.San Diego, CA 921231497765440
- Edward Huynh, MDSan Diego, CA 921231770501769
- Eliana Kozin, BCH BAOSan Diego, CA 921231609021849
Common questions
What is Chung-Jiah Justin Chen, MD's NPI number?
Chung-Jiah Justin Chen, MD's National Provider Identifier (NPI) is 1548792377, issued on Mar 30, 2017. An NPI identifies a provider in billing; it is not a license.
Where is Chung-Jiah Justin Chen, MD located?
The NPPES record lists a practice address at 16950 Via Tazon, San Diego, CA, 92127. Phone: (800) 926-8273. Providers update this record themselves, so call before visiting.
How can I verify Chung-Jiah Justin Chen, MD's license?
NPPES lists California license number A158441, as entered by the provider. Search the Medical Board of California at https://www.mbc.ca.gov/License-Verification/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.