Dr. Justin Chin-Hung Chen, MD
- Medicare services, 2024
- 69
- Medicare patients, 2024
- 44
- Part D claims, 2024
- 50
- Publications
- 1
- MIPS score, 2024
- 84
- Practice address
- One Barnes-Jewish Hospital Plaza, Saint Louis, MO 63110
- Practice phone
- Call (314) 747-3000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
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. Justin Chin-Hung Chen is a hospitalist in Saint Louis, Missouri
Dr. Chen practices at Barnes-Jewish Hospital in Saint Louis, Missouri, part of BJC Health.
Dr. Chen's NPI, 1053761221, was assigned on June 17, 2016. Dr. Chen graduated from Drexel University College of Medicine in 2016. Dr. Chen holds Missouri license 2019022883.
- NPI
- 1053761221NPI Registry (opens in a new tab)
- NPI enumeration date
- June 17, 2016
- NPI status
- Active
- Practice phone
- (314) 747-3000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 36
- Medical school graduation
- 2016
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Justin Chin-Hung Chen practices at 2 locations in Saint Louis, Missouri
Dr. Chen's primary practice is Barnes-Jewish Hospital, at One Barnes-Jewish Hospital Plaza, Saint Louis, MO 63110 in St. Louis City. The practice phone is (314) 747-3000. The NPI Registry lists Dr. Chen's practice address as 1 Barnes Jewish Hospital Plz, Saint Louis, MO 63110.
- Barnes-Jewish HospitalPrimaryOne Barnes-Jewish Hospital Plaza, Saint Louis, MO 63110 · St. Louis CityPhone(314) 747-3000
- NPI Registry address1 Barnes Jewish Hospital Plz, Saint Louis, MO 63110 · Saint Louis CityPhone(314) 362-1700
Sources: NPPES NPI Registry (CMS); Dmand AI Affiliation Data; Doctors and Clinicians National Downloadable File (CMS); and Dmand AI Practice Data
Dr. Justin Chin-Hung Chen is affiliated with 1 site of care and 1 medical group
Dr. Chen's primary practice is Barnes-Jewish Hospital in Saint Louis, Missouri, part of BJC Health. The medical group on file is WashU Medicine Psychiatry.
Sources: Dmand AI Affiliation Data; Doctors and Clinicians National Downloadable File (CMS); and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Justin Chin-Hung Chen's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Chen practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Barnes-Jewish Hospital | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
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Dr. Justin Chin-Hung Chen is one of 735 hospitalists in Missouri
Hospitalist is Dr. Chen's primary specialty in the NPI Registry, under taxonomy code 208M00000X. Dr. Chen is licensed in Missouri.
Specialties and state licenses
- Hospitalist, MissouriPrimary
Hospitalists near Dr. Chen
Counts of hospitalists 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. Justin Chin-Hung Chen billed Medicare for 69 services in 2024
CMS data shows 69 Medicare services from Dr. Chen across 3 procedure codes in 2024, for 44 Medicare patients. Medicare paid $6,742 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Chen's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 4722024: 6985%
- Other services
- 2023: 252024: 0100%
Dr. Chen compared with the Missouri median for hospitalists, 2024
- Dr. Chen
- Missouri median
- Medicare services
- 69vs 43484% below
- Medicare patients
- 44vs 19177% below
- Part D claims
- 12vs 9888% below
Medians across 659 hospitalists in Missouri with Dmand AI profiles that report each measure.
Dr. Chen's most billed Medicare procedure codes, 2024
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Chen and other hospitalists in Missouri.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Justin Chin-Hung Chen treated 44 Medicare patients in 2024, average age 74
CMS counts 44 Medicare patients who saw Dr. Chen in 2024. The largest group is 65 to 74, with 22 patients. 75% of them have high blood pressure, and 68% have high cholesterol. Their average risk score is 3.59, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts Dr. Chen's median patient age at 70, with 50% women.
Dr. Chen's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Chen's Medicare patients by sex, 2024
- Women1943%
- Men2557%
Chronic conditions among Dr. Chen's Medicare patients, 2024
- High blood pressure75%
- High cholesterol68%
- Anxiety57%
- Cancer55%
- Arthritis48%
- Depression48%
- Mood disorders45%
- Chronic kidney disease43%
Share of Medicare patients with each condition. A patient can have several.
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 70
Patient panel by sex, all payers
- Women50%
- Men50%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Justin Chin-Hung Chen wrote 50 Medicare Part D claims in 2024
In 2024, Dr. Chen wrote 50 Medicare Part D claims for 22 patients. 88% of them were for generic drugs. CMS names the drug for 12 of them, across 1 drug with 11 or more claims each, at $141 in total drug cost. In 2019, CMS named 156 claims across 7 drugs.
Dr. Chen's Part D claims by kind of drug, 2024
- Generic44 claims88%
- Brand-name and other6 claims12%
Dr. Chen's most prescribed drugs by claims, 2023
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Part D claims for drugs CMS names, 2019 to 2023
- 2019
- 2023
- Claims for drugs CMS names
- 2019: 1562023: 1292%
Drugs named by CMS: 1 in 2023, 7 in 2019.
Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data
Dr. Justin Chin-Hung Chen scored 84 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 84 out of 100 for Dr. Chen for performance year 2024, reported as part of a group.
Dr. Chen's MIPS scores, performance year 2024
- 84of 100Final score
- 71.6of 100Quality
- 100of 100Promoting Interoperability
- 40of 100Improvement Activities
- 76of 100Cost
Each score is out of 100. The final score weighs the categories CMS scored for this clinician.
Source: Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026
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Dr. Justin Chin-Hung Chen has 1 publication on record
Dmand AI links 1 paper to Dr. Chen in 2019. Dr. Chen's most frequent co-authors are Justin Chen, Jasmine C. Huynh, MD and Edward J. Kim, MD, PhD.
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 hospitalists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Justin Chin-Hung Chen received $250 in industry payments from 2018 to 2024
CMS Open Payments shows 2 general payments to Dr. Chen from 2 drug and device companies from 2018 to 2024. Education make up the largest share, 100% of the total. Abbott Laboratories paid the most, $238.
General payments to Dr. Chen by program year, 2018 to 2024
Companies that paid Dr. Chen the most, 2018 to 2024
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Justin Chin-Hung Chen graduated from Drexel University College of Medicine
Dr. Chen graduated from Drexel University College of Medicine in 2016.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Justin Chin-Hung 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 Affiliation DataDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Dmand AI Org Hierarchy 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 DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | 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 |
| 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. Justin Chin-Hung 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. Justin Chin-Hung Chen's NPI number?
Dr. Justin Chin-Hung Chen's NPI number is 1053761221. It was assigned on June 17, 2016, and it is active in the NPI Registry.
What kind of doctor is Dr. Justin Chin-Hung Chen?
Dr. Justin Chin-Hung Chen is a hospitalist in Saint Louis, Missouri. The primary specialty in the NPI Registry is Hospitalist Physician (taxonomy code 208M00000X).
Where does Dr. Justin Chin-Hung Chen practice?
Dr. Chen practices at One Barnes-Jewish Hospital Plaza, Saint Louis, MO 63110. Dr. Chen also practices at 1 Barnes Jewish Hospital Plz, Saint Louis, MO 63110. Dr. Chen's primary practice is Barnes-Jewish Hospital in Saint Louis, Missouri, part of BJC Health.
What is Dr. Justin Chin-Hung Chen's office phone number?
The practice phone on file for Dr. Chen is (314) 747-3000.
What is Dr. Justin Chin-Hung Chen's medical license number?
Dr. Chen holds Missouri license 2019022883.
Which hospitals is Dr. Justin Chin-Hung Chen affiliated with?
Dr. Chen practices at Barnes-Jewish Hospital in Saint Louis, Missouri.
What medical group is Dr. Justin Chin-Hung Chen part of?
Dr. Chen is linked to WashU Medicine Psychiatry.
Does Dr. Justin Chin-Hung Chen accept Medicare?
Yes. CMS data shows Dr. Chen billed Medicare for 69 services in 2024.
What is Dr. Justin Chin-Hung Chen's MIPS score?
Dr. Chen's MIPS final score for performance year 2024 is 84 out of 100, reported as part of a group.
How many Medicare patients does Dr. Justin Chin-Hung Chen see?
CMS counts 44 Medicare patients who saw Dr. Chen in 2024, with an average age of 74.
Show 7 more questionsShow fewer questions
What services does Dr. Justin Chin-Hung Chen bill to Medicare?
In 2024, Dr. Chen's most billed Medicare services were hospital inpatient care (99233), hospital inpatient care (99223) and hospital inpatient care (99239).
Where did Dr. Justin Chin-Hung Chen go to medical school?
Dr. Chen graduated from Drexel University College of Medicine in 2016.
What drugs does Dr. Justin Chin-Hung Chen prescribe most?
In 2023 Medicare Part D data, Dr. Chen's most prescribed drugs by claims were Pantoprazole Sodium.
Has Dr. Justin Chin-Hung Chen received payments from drug or device companies?
CMS Open Payments shows $250 in general payments to Dr. Chen from 2 companies from 2018 to 2024. The largest total came from Abbott Laboratories.
How long has Dr. Justin Chin-Hung Chen been practicing?
Dr. Chen graduated from medical school in 2016, 10 years ago.
Does Dr. Justin Chin-Hung Chen do research?
Dmand AI links 1 publication to Dr. Chen.
Who does Dr. Justin Chin-Hung Chen publish with?
Dr. Chen's most frequent co-authors are Justin Chen (1 shared paper), Jasmine C. Huynh, MD (1 shared paper) and Edward J. Kim, MD, PhD (1 shared paper).
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