Quick answers
- Which hospitals does Koshnaf Antar work at?
- Medicare's official clinician data lists Koshnaf Antar at 1 hospital: Nyack Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Koshnaf Antar see patients?
- Medicare's clinician data lists 2 practice locations, including White Plains, NY. Call before your visit to confirm the address.
- What is Koshnaf Antar's specialty?
- Medicare lists Rheumatology as the primary specialty.
- Does Koshnaf Antar accept Medicare assignment?
- Yes. Medicare's clinician data says Koshnaf Antar 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 Koshnaf Antar offer telehealth?
- Medicare's clinician data says Koshnaf Antar offers telehealth services. Ask the office which visits can be done by video or phone.
- What is the phone number for Koshnaf Antar?
- (914) 681-1201, as listed in official Medicare / NPI Registry data.
- What is Koshnaf Antar's NPI number?
- 1720194152. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Koshnaf Antar works
Medicare's Facility Affiliation Data lists Koshnaf Antar at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Nyack HospitalNyack, NY · Acute Care Hospital · CCN 330104
Practice locations
Addresses where Koshnaf Antar is enrolled with Medicare (CMS data updated 2026-10-02).
- 41 E Post RdWhite Plains, NY 10601 (914) 681‑1201
- 41 E Post Rd, Medical Staff OfficeWhite Plains, NY 10601
Group practices
Medicare enrollment lists Koshnaf Antar as a member of this group (CMS data updated 2026-10-02).
- White Plains Medical Diagnostic Services, PC93 clinicians in the group
Specialties
- Rheumatologyprimary
Other rheumatologists in New York
Clinicians with the same Medicare primary specialty in New York — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 1989 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1720194152 |
| 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