Quick answers
- Which hospitals does Marshall Posner work at?
- Medicare's official clinician data lists Marshall Posner at 1 hospital: Jupiter Medical Center. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Marshall Posner see patients?
- Medicare's clinician data lists 2 practice locations, including Palm Beach Gardens, FL and Palm Springs, FL. Call before your visit to confirm the address.
- What is Marshall Posner's specialty?
- Medicare lists Medical Oncology as the primary specialty.
- Does Marshall Posner accept Medicare assignment?
- Yes. Medicare's clinician data says Marshall Posner 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.
- Does Marshall Posner offer telehealth?
- Medicare's clinician data says Marshall Posner offers telehealth services. Ask the office which visits can be done by video or phone.
- What is the phone number for Marshall Posner?
- (561) 253-3980, as listed in official Medicare / NPI Registry data.
- What is Marshall Posner's NPI number?
- 1700847753. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Marshall Posner works
Medicare's Facility Affiliation Data lists Marshall Posner at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Jupiter Medical CenterJupiter, FL · Acute Care Hospital · CCN 100253
Practice locations
Addresses where Marshall Posner is enrolled with Medicare (CMS data updated 2026-10-02).
- 11621 Kew Gardens Ave, Suite 101aPalm Beach Gardens, FL 33410 (561) 253‑3980
- 1630 S Congress Ave, Suite 200Palm Springs, FL 33461 (561) 253‑3980
Group practices
Medicare enrollment lists Marshall Posner as a member of this group (CMS data updated 2026-10-02).
- Cancer Center of South Florida PLLC48 clinicians in the group
Specialties
- Medical Oncologyprimary
Other oncologists in Florida
Clinicians with the same Medicare primary specialty in Florida — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Tufts University School Of Medicine |
| Graduation year | 1975 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1700847753 |
| 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
- Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated 2026-10-02, retrieved 2026-10-29
- 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