$75 in research paymentsMelanomaNevi and MelanomasREGN2810
Dr. John W. Chen, MD, PhD
NPI1376534552PAC ID1456331461
- Medicare services, 2024
- 2,062
- Medicare patients, 2024
- 444
- Clinical trials
- 1
- Hospital affiliations
- 5
- Industry payments
- $250,752
- Practice address
- 55 Fruit Street, Boston, MA 02114
- Practice phone
- Call (617) 726-2000
- 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
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Dr. John W. Chen is a diagnostic radiologist in Boston, Massachusetts
Dr. Chen practices at Massachusetts General Hospital in Boston, Massachusetts, part of Mass General Brigham.
Dr. Chen's NPI, 1376534552, was assigned on November 4, 2005. Dr. Chen graduated from University of Illinois College of Med (Chi/Peor/Rock/Chm-Urb) in 1997. Dr. Chen holds Massachusetts license 208213.
NPI and contact details
- NPI
- 1376534552NPI Registry (opens in a new tab)
- Medicare PAC ID
- 1456331461
- NPI enumeration date
- November 4, 2005
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (617) 726-2000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 55
- Medical school graduation
- 1997
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. John W. Chen practices at Massachusetts General Hospital in Boston, Massachusetts
Dr. Chen's primary practice is Massachusetts General Hospital, at 55 Fruit Street, Boston, MA 02114 in Suffolk County. The practice phone is (617) 726-2000.
- Massachusetts General Hospital55 Fruit Street, Boston, MA 02114 · Suffolk CountyPhone(617) 726-2000
Source: Dmand AI Affiliation Data
Dr. John W. Chen is affiliated with 6 sites of care and 2 medical groups
Dr. Chen's primary practice is Massachusetts General Hospital in Boston, Massachusetts, part of Mass General Brigham. Dr. Chen is also affiliated with Newton-Wellesley Hospital. The medical group on file is Massachusetts General Physicians Organization (MGPO). Dmand AI also links Dr. Chen to 3 more hospitals, 1 community health center and 1 medical group, each named with a free account.
Newton-Wellesley HospitalMassachusetts General Physicians Organization (MGPO)3 hospitalsNames with a free account1 community health centerName with a free account1 medical groupName with a free account
See all 8 affiliations for Dr. ChenSources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. John W. Chen's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Chen practices, 6 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Massachusetts General Hospital | Available with a free account |
| +5 more sites and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
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Dr. John W. Chen is one of 1,246 diagnostic radiologists in Massachusetts
Diagnostic radiology is Dr. Chen's primary specialty in the NPI Registry, under taxonomy code 2085R0202X. Dr. Chen is licensed in Massachusetts.
Specialties and state licenses
- Diagnostic radiology, MassachusettsPrimary
Diagnostic radiologists near Dr. Chen
Counts of diagnostic radiologists with a Dmand AI profile, by place and practice. Each opens the list.
1,246diagnostic radiologists in Massachusetts540diagnostic radiologists in Boston174diagnostic radiologists at Massachusetts General Hospital
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. John W. Chen billed Medicare for 2,062 services in 2024
CMS data shows 2,062 Medicare services from Dr. Chen across 9 procedure codes in 2024, for 444 Medicare patients. Medicare paid $29,451 for them.
Medicare services, 20242,062
Medicare patients444
Paid by Medicare$29,451
Procedure codes9
Dr. Chen's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Other services
- 2023: 6,1202024: 1,59074%
- Imaging
- 2023: 5042024: 4726%
Where Dr. Chen's Medicare services took place, 2024
- In an office1,69082%
- In a facility37218%
Dr. Chen compared with the Massachusetts median for diagnostic radiologists, 2024
- Dr. Chen
- Massachusetts median
- Medicare services
- 2,062vs 2,2428% below
- Medicare patients
- 444vs 1,57172% below
Medians across 1,108 diagnostic radiologists in Massachusetts 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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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. John W. Chen treated 444 Medicare patients in 2024, average age 75
CMS counts 444 Medicare patients who saw Dr. Chen in 2024. The largest group is 75 to 84, with 178 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 21% are also on Medicaid. Their average risk score is 1.91, 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 64, with 45% women.
Medicare patients, 2024444
Average age75
Average risk score1.91
Also on Medicaid21%
Dr. Chen's Medicare patients by age, 2024
Dr. Chen's Medicare patients by sex, 2024
- Women23352%
- Men21148%
Chronic conditions among Dr. Chen's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis51%
- Mood disorders41%
- Ischemic heart disease39%
- Anxiety38%
- Depression36%
- Stroke or TIA33%
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 64
Patient panel by sex, all payers
- Women45%
- Men55%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
How Dr. John W. Chen takes part in Medicare
Dr. Chen accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dr. John W. Chen has worked on 1 clinical trial
Dmand AI links Dr. Chen to 1 clinical trial. Conditions studied include Melanoma and Nevi and Melanomas. Open Payments lists research payments to Dr. Chen that name 1 trial.
Conditions in Dr. Chen's trials
- Melanoma
- Nevi and Melanomas
Investigators on the most trials with Dr. Chen
- Joseph T. Ferrucci, MD1 shared trial
- Joseph T. Ferrucci, MD1 shared trial
- Daniele Marin, MD1 shared trial
Recent clinical trials with Dr. Chen
Sources: Open Payments (CMS), 2025 data, released July 7, 2026; ClinicalTrials.gov (National Library of Medicine); and Dmand AI Research Linkage
Dr. John W. Chen received $250,752 in industry payments from 2016 to 2021
CMS Open Payments shows 109 general payments to Dr. Chen from 2 drug and device companies from 2016 to 2021. Consulting fees make up the largest share, 99% of the total. Merck Sharp & Dohme Corporation paid the most, $241,155. It also lists 1 research payment totaling $75 in 2019, naming 1 clinical trial.
General payments to Dr. Chen by program year, 2016 to 2021
General payments to Dr. Chen by kind, 2016 to 2021
$250.8Kin total
- Consulting fees$249,15599%
- Travel and lodging$1,1350%
- Food and beverage$4620%
Companies that paid Dr. Chen the most, 2016 to 2021
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. John W. Chen graduated from University of Illinois College of Med (Chi/Peor/Rock/Chm-Urb)
Dr. Chen graduated from University of Illinois College of Med (Chi/Peor/Rock/Chm-Urb) in 1997.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. John W. 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 | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDmand 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) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| Clinical trials and co-investigators | ClinicalTrials.gov (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. John W. 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. John W. Chen's NPI number?
Dr. John W. Chen's NPI number is 1376534552. It was assigned on November 4, 2005, and it is active in the NPI Registry.
What kind of doctor is Dr. John W. Chen?
Dr. John W. Chen is a diagnostic radiologist in Boston, Massachusetts. The primary specialty in the NPI Registry is Diagnostic Radiology Physician (taxonomy code 2085R0202X).
Where does Dr. John W. Chen practice?
Dr. Chen practices at 55 Fruit Street, Boston, MA 02114. Dr. Chen's primary practice is Massachusetts General Hospital in Boston, Massachusetts, part of Mass General Brigham. Dmand AI also links Dr. Chen to 3 hospitals, 1 community health center and 1 medical group.
What is Dr. John W. Chen's office phone number?
The practice phone on file for Dr. Chen is (617) 726-2000.
What is Dr. John W. Chen's medical license number?
Dr. Chen holds Massachusetts license 208213.
Which hospitals is Dr. John W. Chen affiliated with?
Dr. Chen practices at Massachusetts General Hospital in Boston, Massachusetts. Dr. Chen is also affiliated with Newton-Wellesley Hospital. Dmand AI links Dr. Chen to 3 more hospitals.
What medical group is Dr. John W. Chen part of?
Dr. Chen is linked to Massachusetts General Physicians Organization (MGPO). Dmand AI links Dr. Chen to 1 more medical group.
Does Dr. John W. Chen accept Medicare?
Yes. CMS data shows Dr. Chen billed Medicare for 2,062 services in 2024, and Dr. Chen accepts Medicare assignment.
How many Medicare patients does Dr. John W. Chen see?
CMS counts 444 Medicare patients who saw Dr. Chen in 2024, with an average age of 75.
What services does Dr. John W. Chen bill to Medicare?
In 2024, Dr. Chen's most billed Medicare services were medical supplies or transport (A9575), diagnostic imaging (70450) and diagnostic imaging (70553).
Show 4 more questionsShow fewer questions
Where did Dr. John W. Chen go to medical school?
Dr. Chen graduated from University of Illinois College of Med (Chi/Peor/Rock/Chm-Urb) in 1997.
Has Dr. John W. Chen received payments from drug or device companies?
CMS Open Payments shows $250,752 in general payments to Dr. Chen from 2 companies from 2016 to 2021. The largest total came from Merck Sharp & Dohme Corporation.
How long has Dr. John W. Chen been practicing?
Dr. Chen graduated from medical school in 1997, 29 years ago.
Does Dr. John W. Chen do research?
Dr. Chen has worked on 1 clinical trial.
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