Quick answers
- Where does Mark J. Decker see patients?
- Medicare's clinician data lists 33 practice locations, including Yonkers, NY, Melville, NY and North Babylon, NY. Call before your visit to confirm the address.
- What is Mark J. Decker's specialty?
- Medicare lists Diagnostic Radiology as the primary specialty.
- Does Mark J. Decker accept Medicare assignment?
- Yes. Medicare's clinician data says Mark J. Decker accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of 2026-10-02. Ask the office to confirm before your visit.
- What is the phone number for Mark J. Decker?
- (914) 969-1818, as listed in official Medicare / NPI Registry data.
- What is Mark J. Decker's NPI number?
- 1023002862. 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 Mark J. Decker is enrolled with Medicare (CMS data updated 2026-10-02). The first 5 of 33; the Medicare profile lists all.
- 1034 N Broadway, Suite 5Yonkers, NY 10701 (914) 969‑1818
- 110 Marcus DrMelville, NY 11747 · Stand-Up Mri and Diagnostic Center Inc (631) 694‑2816
- 1118 Deer Park AveNorth Babylon, NY 11703 (631) 243‑3222
- 1157 BroadwayHewlett, NY 11557 · Rheumatology Consultants, LLP (516) 295‑4481
- 1165 Wantagh AveWantagh, NY 11793 (516) 781‑1800
Group practices
Medicare enrollment lists Mark J. Decker as a member of these groups (CMS data updated 2026-10-02).
- True North Medical Group PC188 clinicians in the group
- West Orange Radiology LLC36 clinicians in the group
- Comprehensive Mri of New York PC16 clinicians in the group
- Stand-Up Mri of Bensonhurst, PC15 clinicians in the group
- Stand-Up Mri of Deer Park, P.C.15 clinicians in the group
- Stand-Up Mri of Lynbrook, P.C.15 clinicians in the group
Specialties
- Diagnostic Radiologyprimary
Other radiologists in Yonkers
Clinicians with the same Medicare primary specialty in Yonkers, NY — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Icahn School Of Medicine At Mount Sinai |
| Graduation year | 1993 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1023002862 |
| 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 2026-10-02, retrieved 2026-10-29
- 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