Dr. Chung-Jiah Justin Chen, MD
- Medicare services, 2021
- 51
- Publications
- 1
- MIPS score, 2024
- 91
- Hospital affiliations
- 1
- Industry payments
- $151
- Practice address
- 200 W Arbor Dr, San Diego, CA 92103
- Practice phone
- Call (619) 543-6060
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
UCSD Hillcrest Medical Center
San Diego, California
Find Dr. Chen's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Dr. Chung-Jiah Justin Chen is a hematologist and oncologist in San Diego, California
Dr. Chen practices at UCSD Hillcrest Medical Center in San Diego, California.
Dr. Chen's NPI, 1548792377, was assigned on March 30, 2017. Dr. Chen graduated from Baylor College Of Medicine in 2017. Dr. Chen holds California license A158441.
- NPI
- 1548792377NPI Registry (opens in a new tab)
- Medicare PAC ID
- 3678998663
- NPI enumeration date
- March 30, 2017
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (619) 543-6060
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 35
- Medical school graduation
- 2017
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Chung-Jiah Justin Chen practices at UCSD Hillcrest Medical Center in San Diego, California
Dr. Chen's primary practice is UCSD Hillcrest Medical Center, at 200 W Arbor Dr, San Diego, CA 92103 in San Diego County. The practice phone is (619) 543-6060.
- UCSD Hillcrest Medical Center200 W Arbor Dr, San Diego, CA 92103 · San Diego CountyPhone(619) 543-6060
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Chung-Jiah Justin Chen is affiliated with 3 sites of care and 1 medical group
Dr. Chen's primary practice is UCSD Hillcrest Medical Center in San Diego, California. Dr. Chen is also affiliated with Hillcrest Medical Center. The medical group on file is UC San Diego Health. Dmand AI also links Dr. Chen to 1 more group practice or clinic, named with a free account.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Chung-Jiah Justin Chen's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Chen practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| UCSD Hillcrest Medical Center | Available with a free account |
| +2 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Chung-Jiah Justin Chen is one of 1,502 hematologists and oncologists in California
Hematology and oncology is Dr. Chen's primary specialty in the NPI Registry, under taxonomy code 207RH0003X. Dr. Chen is board certified in hematology by the American Board of Internal Medicine. Dr. Chen is licensed in California.
Specialties and state licenses
- Hematology and oncology, CaliforniaPrimary
Hematologists and oncologists near Dr. Chen
Counts of hematologists and oncologists with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Chung-Jiah Justin Chen billed Medicare for 51 services in 2021
CMS data shows 51 Medicare services from Dr. Chen across 1 procedure code in 2021. Medicare paid $3,065 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Chen compared with the California median for hematologists and oncologists, 2021
- Dr. Chen
- California median
- Medicare services
- 51vs 93295% below
Medians across 1,367 hematologists and oncologists in California with Dmand AI profiles that report each measure.
Dr. Chen's most billed Medicare procedure codes, 2021
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
Need commercial claims for Dr. Chen?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Chen and other hematologists and oncologists in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Chung-Jiah Justin Chen's patients have a median age of 69
Across all payers, Dmand AI patient panel data puts Dr. Chen's median patient age at 69, with 65% women.
Dr. Chen's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 69
Patient panel by sex, all payers
- Women65%
- Men33%
Source: Dmand AI Patient Panel Data
Dr. Chung-Jiah Justin Chen scored 91 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 91 out of 100 for Dr. Chen for performance year 2024, reported as part of a group. Dr. Chen accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Chen as offering telehealth.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Dr. Chen's MIPS scores, performance year 2024
- 91of 100Final score
- 84.1of 100Quality
- 100of 100Promoting Interoperability
- 40of 100Improvement Activities
- 74of 100Cost
Each score is out of 100. The final score weighs the categories CMS scored for this clinician.
Sources: Doctors and Clinicians National Downloadable File (CMS); and Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026
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Dr. Chung-Jiah Justin Chen has 1 publication on record
Dmand AI links 1 paper to Dr. Chen in 2023. Dr. Chen's most frequent co-authors are Michael Youngjun Choi, MD and Benjamin Michael Heyman, MD.
Dr. Chen's most frequent co-authors
Recent publications by Dr. Chen
See who Dr. Chen researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Chen works with, so you can find a warm path to the right hematologists and oncologists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Chung-Jiah Justin Chen received $151 in industry payments from 2023 to 2025
CMS Open Payments shows 2 general payments to Dr. Chen from 2 drug and device companies from 2023 to 2025. Food and beverage make up the largest share, 100% of the total. Bristol-Myers Squibb Company paid the most, $121.
General payments to Dr. Chen by program year, 2023 to 2025
Companies that paid Dr. Chen the most, 2023 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Chung-Jiah Justin Chen graduated from Baylor College Of Medicine
Dr. Chen graduated from Baylor College Of Medicine in 2017.
- Medical school
- Board certified in hematology
- Board certified in internal medicine
- Board certified in medical oncology
Source: Dmand AI Professional Profile Data
Dr. Chung-Jiah Justin Chen accepts plans from 9 insurance carriers
Dr. Chen is in network with 9 carriers, including Aetna, Blue Cross Blue Shield of Michigan and Blue Cross Blue Shield of Massachusetts. Medicare plans come from the most carriers, 7. Check the plan with the practice before a visit.
- Aetna
- Blue Cross Blue Shield of Michigan
- Blue Cross Blue Shield of Massachusetts
- HCSC
- Molina
- Regence Health Plans
- United Healthcare
- Blue Cross and Blue Shield of Kansas City
- +1 more carriersWith a free account
Plan types Dr. Chen accepts, by number of carriers
- Medicare7
- PPO5
- HMO4
- POS3
- EPO2
Source: Dmand AI Insurance Network Data
Sources for Dr. Chung-Jiah Justin Chen's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand AI Affiliation Data |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel Data |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Clinician Public Reporting: Overall MIPS Performance (CMS) (opens in a new tab) |
| Publications, topics and co-authors | PubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| Insurance carriers and plan types | Dmand AI Insurance Network Data |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. Chung-Jiah Justin Chen
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Dr. Chung-Jiah Justin Chen's NPI number?
Dr. Chung-Jiah Justin Chen's NPI number is 1548792377. It was assigned on March 30, 2017, and it is active in the NPI Registry.
What kind of doctor is Dr. Chung-Jiah Justin Chen?
Dr. Chung-Jiah Justin Chen is a hematologist and oncologist in San Diego, California. The primary specialty in the NPI Registry is Hematology & Oncology Physician (taxonomy code 207RH0003X).
Where does Dr. Chung-Jiah Justin Chen practice?
Dr. Chen practices at 200 W Arbor Dr, San Diego, CA 92103. Dr. Chen's primary practice is UCSD Hillcrest Medical Center in San Diego, California. Dmand AI also links Dr. Chen to 1 group practice or clinic.
What is Dr. Chung-Jiah Justin Chen's office phone number?
The practice phone on file for Dr. Chen is (619) 543-6060.
What is Dr. Chung-Jiah Justin Chen's medical license number?
Dr. Chen holds California license A158441.
Which hospitals is Dr. Chung-Jiah Justin Chen affiliated with?
Dr. Chen is affiliated with Hillcrest Medical Center.
What medical group is Dr. Chung-Jiah Justin Chen part of?
Dr. Chen is linked to UC San Diego Health.
Does Dr. Chung-Jiah Justin Chen accept Medicare?
Yes. CMS data shows Dr. Chen billed Medicare for 51 services in 2021, and Dr. Chen accepts Medicare assignment.
Does Dr. Chung-Jiah Justin Chen offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Chen as offering telehealth services.
What is Dr. Chung-Jiah Justin Chen's MIPS score?
Dr. Chen's MIPS final score for performance year 2024 is 91 out of 100, reported as part of a group.
Show 8 more questionsShow fewer questions
Is Dr. Chung-Jiah Justin Chen board certified?
Yes. Dr. Chen is board certified in hematology by the American Board of Internal Medicine.
What services does Dr. Chung-Jiah Justin Chen bill to Medicare?
In 2021, Dr. Chen's most billed Medicare services were hospital inpatient care (99232).
Where did Dr. Chung-Jiah Justin Chen go to medical school?
Dr. Chen graduated from Baylor College Of Medicine in 2017.
Has Dr. Chung-Jiah Justin Chen received payments from drug or device companies?
CMS Open Payments shows $151 in general payments to Dr. Chen from 2 companies from 2023 to 2025. The largest total came from Bristol-Myers Squibb Company.
How long has Dr. Chung-Jiah Justin Chen been practicing?
Dr. Chen graduated from medical school in 2017, 9 years ago.
Does Dr. Chung-Jiah Justin Chen do research?
Dmand AI links 1 publication to Dr. Chen.
Who does Dr. Chung-Jiah Justin Chen publish with?
Dr. Chen's most frequent co-authors are Michael Youngjun Choi, MD (1 shared paper) and Benjamin Michael Heyman, MD (1 shared paper).
What insurance does Dr. Chung-Jiah Justin Chen accept?
Dr. Chen is in network with 9 carriers, including Aetna, Blue Cross Blue Shield of Michigan and Blue Cross Blue Shield of Massachusetts. Medicare plans come from the most carriers, 7. Check the plan with the practice before a visit.
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