Quick answers
- Which hospitals does William C. Chen work at?
- Medicare's official clinician data lists William C. Chen 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 William C. Chen see patients?
- Medicare's clinician data lists 2 practice locations, including New York, NY and Bay Shore, NY. Call before your visit to confirm the address.
- What is William C. Chen's specialty?
- Medicare lists Radiation Oncology as the primary specialty.
- Does William C. Chen accept Medicare assignment?
- Yes. Medicare's clinician data says William C. Chen 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 William C. Chen offer telehealth?
- Medicare's clinician data says William C. Chen offers telehealth services. Ask the office which visits can be done by video or phone.
- What is the phone number for William C. Chen?
- (212) 434-2140, as listed in official Medicare / NPI Registry data.
- What is William C. Chen's NPI number?
- 1962602136. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where William C. Chen works
Medicare's Facility Affiliation Data lists William C. Chen 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 William C. Chen is enrolled with Medicare (CMS data updated 2026-10-02).
- 100 E 77th StNew York, NY 10075 (212) 434‑2140
- 440 E Main StBay Shore, NY 11706 (516) 321‑3000
Group practices
Medicare enrollment lists William C. Chen as a member of this group (CMS data updated 2026-10-02).
- North Shore-Lij Medical PC6,440 clinicians in the group
Specialties
- Radiation Oncologyprimary
Other radiation oncologists in New York
Clinicians with the same Medicare primary specialty in New York, NY — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 2006 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1962602136 |
| 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