Sleep Medicine

JOHN ASHKAR

Sleep Medicine in Brooklyn, New York (United States). Listing compiled from public sources — verify contact details and availability with the practice.

40.6628°N 73.9687°WM.D.
Specialist dossier

Practice details

Updated 2026-10-25

Verified listing

8 fields
CredentialsM.D.
SpecialtySleep Medicine
Postcode11209
Phone718-621-7100
Coordinates40.6628°N 73.9687°W (city-centre estimate)
Listing verified fromnpiregistry.cms.hhs.gov
Last verified2026-10-25

Check before you travel. Information above was collected from the public source shown. Practice details can change — confirm with the practice before travelling or booking. Costs vary by treatment and insurer/health fund; no prices are published on this site.

About JOHN ASHKAR

This profile covers JOHN ASHKAR, a sleep medicine listing in Brooklyn, New York, the United States. The directory records 355 Ovington Avenue Suite 202 as the practice address. 11209 is the ZIP code on file for this listing.

The entry carries the credentials M.D. No further background details are recorded for this practice. The entry is compiled from npiregistry.cms.hhs.gov.

Before booking, ask whether a referral or doctor's letter is needed, because requirements differ between practices and how a visit is funded. Ask for the total expected cost before booking, separating the consultation from any study or device fee. Find out whether the first assessment leads to a home sleep test or an in-lab overnight study, and how long results take. Find out whether the practice runs a structured sleep program and how many sessions it involves. Confirm the cancellation policy, since missed-appointment fees differ between clinics. Ask who reviews the study results and when you will be told what they show. It is worth asking whether the practice deals with the kind of sleep problem you have, since some clinics focus on particular conditions. Details on this page come from public records and can change, so confirm them with the practice before you travel.

Questions, answered

Frequently asked questions

📞 Contact 718-621-7100

How do I book an appointment with JOHN ASHKAR?

Book by phoning 718-621-7100; the practice arranges its own appointments and can confirm availability, fees and what to bring.

Where is JOHN ASHKAR located?

Its listing address is 355 Ovington Avenue Suite 202, Brooklyn, New York 11209, the United States. The map pin marks the center of the city area rather than the practice itself. Ring the practice to check the address and entrance before you set out.