Sleep Medicine

JOHN KOOSTRA

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

36.5786°N 121.8151°WM.D.
Specialist dossier

Practice details

Updated 2026-10-25

Verified listing

8 fields
CredentialsM.D.
SpecialtySleep Medicine
Postcode93940
Phone831-646-8570
Coordinates36.5786°N 121.8151°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 KOOSTRA

This page sets out the sleep medicine listing for JOHN KOOSTRA in Monterey, California, the United States. Address details come from the public listing: 30 Garden Ct. Its listed ZIP code is 93940.

The entry carries the credentials M.D. No other profile fields are filled in for this entry. This record was built from npiregistry.cms.hhs.gov.

Ask about referral requirements up front; they vary by practice and by how the consultation is paid for. Ask for the total expected cost before booking, separating the consultation from any study or device fee. Ask what kind of sleep study is offered, where it takes place, and whether you sleep there overnight. Ask what to bring: a medication list, any referral letter, a sleep diary, and results from earlier studies. If the practice sits inside a larger medical center, ask which building and floor to go to. It is worth asking whether the practice deals with the kind of sleep problem you have, since some clinics focus on particular conditions. Ask whether appointment confirmations and any forms can be sent before the visit. The listing is a directory entry rather than a booking service; check the practice's current details before making plans.

Questions, answered

Frequently asked questions

📞 Contact 831-646-8570

How do I book an appointment with JOHN KOOSTRA?

Call 831-646-8570 to book. This directory does not take bookings, so confirm the appointment time, referral rules and fees with the practice directly.

Where is JOHN KOOSTRA located?

Its listing address is 30 Garden Ct, Monterey, California 93940, the United States. The map pin marks the center of the city area rather than the practice itself. Confirm the address with the practice before travelling, since listing details can change.