Quick answers
- Which hospitals does Robert A. Lookstein work at?
- Medicare's official clinician data lists Robert A. Lookstein at 2 hospitals: Mount Sinai Hospital and Mount Sinai West. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Robert A. Lookstein see patients?
- Medicare's clinician data lists 7 practice locations, including New York, NY. Call before your visit to confirm the address.
- What is Robert A. Lookstein's specialty?
- Medicare lists Interventional Radiology as the primary specialty, and also Diagnostic Radiology.
- Does Robert A. Lookstein accept Medicare assignment?
- Yes. Medicare's clinician data says Robert A. Lookstein 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 Robert A. Lookstein offer telehealth?
- Medicare's clinician data says Robert A. Lookstein offers telehealth services. Ask the office which visits can be done by video or phone.
- What is the phone number for Robert A. Lookstein?
- (212) 241-6500, as listed in official Medicare / NPI Registry data.
- What is Robert A. Lookstein's NPI number?
- 1164422531. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Robert A. Lookstein works
Medicare's Facility Affiliation Data lists Robert A. Lookstein at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Mount Sinai HospitalNew York, NY · Acute Care Hospital · CCN 330024
- Mount Sinai WestNew York, NY · Acute Care Hospital · CCN 330046
Practice locations
Addresses where Robert A. Lookstein is enrolled with Medicare (CMS data updated 2026-10-02). The first 5 of 7; the Medicare profile lists all.
- 100 Th St and Madison AveNew York, NY 10029 (212) 241‑6500
- 1000 10th AveNew York, NY 10019 (212) 241‑6426
- 1111 Amsterdam AveNew York, NY 10025 (212) 241‑6426
- 1176 5th AveNew York, NY 10029 (212) 241‑8395
- 1470 Madison AveNew York, NY 10029 (212) 241‑8426
Group practices
Medicare enrollment lists Robert A. Lookstein as a member of this group (CMS data updated 2026-10-02).
- Fpa Hospital Based425 clinicians in the group
Specialties
- Interventional Radiologyprimary
- Diagnostic Radiologyalso
Other interventional radiologists in New York
Clinicians with the same Medicare primary specialty in New York, NY — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | State University Of New York Downstate Medical Center |
| Graduation year | 1995 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1164422531 |
| 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