Quick answers
- Does Steven M. Defossez accept Medicare assignment?
- Yes. Medicare's clinician data says Steven M. Defossez accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
- What is Steven M. Defossez's NPI number?
- 1952397408. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Practice locations
Addresses where Steven M. Defossez is enrolled with Medicare (CMS data updated October 2, 2026).
- 800 Washington StBoston, MA 02111 (617) 636‑5000
Group practices
Medicare enrollment lists Steven M. Defossez as a member of this group (CMS data updated October 2, 2026).
- Pratt Radiology Associates Inc54 clinicians in the group
Specialties
- Diagnostic Radiologyprimary
Other radiologists in Boston
Clinicians with the same Medicare primary specialty in Boston, MA — not a recommendation.
Other clinicians in Pratt Radiology Associates Inc
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Tufts University School Of Medicine |
| Graduation year | 1985 (41 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1952397408 |
| Corrections | Report an error or suggest an update → |
Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.
Sources
- National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians