Quick answers
- Which hospitals does Mark B. Chaskes work at?
- Medicare's official clinician data lists Mark B. Chaskes at 3 hospitals: Long Island Jewish Medical Center, North Shore University Hospital and Ns/Lij HS Southside Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Mark B. Chaskes see patients?
- Medicare's clinician data lists 1 practice location in Babylon, NY. Call before your visit to confirm the address.
- What is Mark B. Chaskes's specialty?
- Medicare lists Otolaryngology as the primary specialty.
- Does Mark B. Chaskes accept Medicare assignment?
- Yes. Medicare's clinician data says Mark B. Chaskes 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 B. Chaskes?
- (631) 539-5400, as listed in official Medicare / NPI Registry data.
- What is Mark B. Chaskes's NPI number?
- 1154784361. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Mark B. Chaskes works
Medicare's Facility Affiliation Data lists Mark B. Chaskes at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Long Island Jewish Medical CenterNew Hyde Park, NY · Acute Care Hospital · CCN 330195
- North Shore University HospitalManhasset, NY · Acute Care Hospital · CCN 330106
- Ns/Lij HS Southside HospitalBay Shore, NY · Acute Care Hospital · CCN 330043
Practice locations
Addresses where Mark B. Chaskes is enrolled with Medicare (CMS data updated 2026-10-02).
- 500 W Main St, Suite 204Babylon, NY 11702 (631) 539‑5400
Group practices
Medicare enrollment lists Mark B. Chaskes as a member of this group (CMS data updated 2026-10-02).
- North Shore-Lij Medical PC6,440 clinicians in the group
Specialties
- Otolaryngologyprimary
Other ENT doctors in New York
Clinicians with the same Medicare primary specialty in New York — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Albany Medical College Of Union University |
| Graduation year | 2016 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1154784361 |
| 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