Dr. Steven M. Defossez, MD
- Medicare services, 2023
- 24
- Hospital affiliations
- 2
- Industry payments
- $41
- Medical groups
- 2
- State license
- 1
- Practice address
- 800 Washington Street, Boston, MA 02111
- Practice phone
- Call (617) 636-5000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Defossez's professional email, personal email and mobile number
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Dr. Steven M. Defossez is a diagnostic radiologist in Boston, Massachusetts
Dr. Defossez practices at Tufts Medical Center in Boston, Massachusetts, part of Tufts Medicine.
Dr. Defossez's NPI, 1952397408, was assigned on September 21, 2005. Dr. Defossez graduated from Tufts University School of Medicine in 1985. Dr. Defossez holds Massachusetts license 060585.
- NPI
- 1952397408NPI Registry (opens in a new tab)
- Medicare PAC ID
- 6305837600
- NPI enumeration date
- September 21, 2005
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (617) 636-5000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 67
- Medical school graduation
- 1985
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Steven M. Defossez practices at Tufts Medical Center in Boston, Massachusetts
Dr. Defossez's primary practice is Tufts Medical Center, at 800 Washington Street, Boston, MA 02111 in Suffolk County. The practice phone is (617) 636-5000.
- Tufts Medical Center800 Washington Street, Boston, MA 02111 · Suffolk CountyPhone(617) 636-5000
Source: Dmand AI Affiliation Data
Dr. Steven M. Defossez is affiliated with 3 sites of care and 2 medical groups
Dr. Defossez's primary practice is Tufts Medical Center in Boston, Massachusetts, part of Tufts Medicine. Dr. Defossez is also affiliated with Beverly Hospital. The medical group on file is Pratt Radiology Associates. Dmand AI also links Dr. Defossez to 1 more imaging center and 1 medical group, each named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Steven M. Defossez's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Defossez practices, 3 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Tufts Medical Center | Available with a free account |
| +2 more sites and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
Dmand AI maps EHR vendors, IT decision makers and buying committees across Tufts Medicine and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Steven M. Defossez is one of 1,246 diagnostic radiologists in Massachusetts
Diagnostic radiology is Dr. Defossez's primary specialty in the NPI Registry, under taxonomy code 2085R0202X. Dr. Defossez is licensed in Massachusetts.
Specialties and state licenses
- Diagnostic radiology, MassachusettsPrimary
Diagnostic radiologists near Dr. Defossez
Counts of diagnostic radiologists 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. Steven M. Defossez billed Medicare for 24 services in 2023
CMS data shows 24 Medicare services from Dr. Defossez across 2 procedure codes in 2023. Medicare paid $1,666 for them. Every service was in an office.
Dr. Defossez's Medicare services by type, 2022 to 2023
- 2022
- 2023
- Imaging
- 2022: 5062023: 2495%
Dr. Defossez compared with the Massachusetts median for diagnostic radiologists, 2023
- Dr. Defossez
- Massachusetts median
- Medicare services
- 24vs 2,24299% below
Medians across 1,108 diagnostic radiologists in Massachusetts with Dmand AI profiles that report each measure.
Dr. Defossez's most billed Medicare procedure codes, 2023
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. Defossez?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Defossez and other diagnostic radiologists in Massachusetts.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Steven M. Defossez's patients have a median age of 54
Across all payers, Dmand AI patient panel data puts Dr. Defossez's median patient age at 54, with 61% women.
Dr. Defossez's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 54
Patient panel by sex, all payers
- Women61%
- Men37%
Source: Dmand AI Patient Panel Data
How Dr. Steven M. Defossez takes part in Medicare
Dr. Defossez 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. Steven M. Defossez received $41 in industry payments in 2017
CMS Open Payments shows 2 general payments to Dr. Defossez from 1 drug or device company in 2017. Food and beverage make up the largest share, 100% of the total. AstraZeneca Pharmaceuticals LP paid the most, $41.
Companies that paid Dr. Defossez the most, 2017 to 2017
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Steven M. Defossez graduated from Tufts University School of Medicine
Dr. Defossez graduated from Tufts University School of Medicine in 1985.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Steven M. Defossez'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 Data |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| 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. Steven M. Defossez
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. Steven M. Defossez's NPI number?
Dr. Steven M. Defossez's NPI number is 1952397408. It was assigned on September 21, 2005, and it is active in the NPI Registry.
What kind of doctor is Dr. Steven M. Defossez?
Dr. Steven M. Defossez is a diagnostic radiologist in Boston, Massachusetts. The primary specialty in the NPI Registry is Diagnostic Radiology Physician (taxonomy code 2085R0202X).
Where does Dr. Steven M. Defossez practice?
Dr. Defossez practices at 800 Washington Street, Boston, MA 02111. Dr. Defossez's primary practice is Tufts Medical Center in Boston, Massachusetts, part of Tufts Medicine. Dmand AI also links Dr. Defossez to 1 imaging center and 1 medical group.
What is Dr. Steven M. Defossez's office phone number?
The practice phone on file for Dr. Defossez is (617) 636-5000.
What is Dr. Steven M. Defossez's medical license number?
Dr. Defossez holds Massachusetts license 060585.
Which hospitals is Dr. Steven M. Defossez affiliated with?
Dr. Defossez practices at Tufts Medical Center in Boston, Massachusetts. Dr. Defossez is also affiliated with Beverly Hospital.
What medical group is Dr. Steven M. Defossez part of?
Dr. Defossez is linked to Pratt Radiology Associates. Dmand AI links Dr. Defossez to 1 more medical group.
Does Dr. Steven M. Defossez accept Medicare?
Yes. CMS data shows Dr. Defossez billed Medicare for 24 services in 2023, and Dr. Defossez accepts Medicare assignment.
What services does Dr. Steven M. Defossez bill to Medicare?
In 2023, Dr. Defossez's most billed Medicare services were diagnostic imaging (70553) and diagnostic imaging (72148).
Where did Dr. Steven M. Defossez go to medical school?
Dr. Defossez graduated from Tufts University School of Medicine in 1985.
Has Dr. Steven M. Defossez received payments from drug or device companies?
CMS Open Payments shows $41 in general payments to Dr. Defossez from 1 company from 2017 to 2017. The largest total came from AstraZeneca Pharmaceuticals LP.
How long has Dr. Steven M. Defossez been practicing?
Dr. Defossez graduated from medical school in 1985, 41 years ago.
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