Quick answers
- Which hospitals does John A. Ashkar work at?
- Medicare's official clinician data lists John A. Ashkar at 2 hospitals: New York-Presbyterian Hospital and NYU Langone Hospitals. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does John A. Ashkar see patients?
- Medicare's clinician data lists 2 practice locations, including Brooklyn, NY. Call before your visit to confirm the address.
- What is John A. Ashkar's specialty?
- Medicare lists Pulmonary Disease as the primary specialty, and also Critical Care (Intensivists) and Internal Medicine.
- Does John A. Ashkar accept Medicare assignment?
- Yes. Medicare's clinician data says John A. Ashkar 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 John A. Ashkar?
- (718) 621-7100, as listed in official Medicare / NPI Registry data.
- What is John A. Ashkar's NPI number?
- 1073568184. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where John A. Ashkar works
Medicare's Facility Affiliation Data lists John A. Ashkar at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- New York-Presbyterian HospitalNew York, NY · Acute Care Hospital · CCN 330101
- NYU Langone HospitalsNew York, NY · Acute Care Hospital · CCN 330214
Practice locations
Addresses where John A. Ashkar is enrolled with Medicare (CMS data updated 2026-10-02).
- 355 Ovington Ave, Suite 202Brooklyn, NY 11209 (718) 621‑7100
- 8686 Bay Pkwy, Suite M1Brooklyn, NY 11214 (718) 372‑0888
Group practices
Medicare enrollment lists John A. Ashkar as a member of this group (CMS data updated 2026-10-02).
- Chinatown True Care Medical PLLC241 clinicians in the group
Specialties
Other pulmonologists in Brooklyn
Clinicians with the same Medicare primary specialty in Brooklyn, NY — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 1996 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1073568184 |
| 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