NOCTURNAL SLEEP DIAGNOSTICS LLC
NOCTURNAL SLEEP DIAGNOSTICS LLC is an organization registered with the National Plan and Provider Enumeration System (NPPES) under NPI 1003129818, based in New York, NY. It is classified under Sleep Disorder Diagnostic Clinic/Center.
Getting there
Here is what surrounds this office in New York, based on OpenStreetMap data collected Sep 7, 2026. Parking is available about 0.21 mi away at Centerpark Broadway Parking Garage. The nearest transit stop is 844 ft away, served by Saint Nicholas Avenue & West 174th Street. A pharmacy sits 735 ft from the entrance (San Nicholas Pharmacy), which helps if you leave with a prescription. If you arrive early, there is a coffee shop 1,020 ft away.
Getting here and what is nearby
Pharmacy Med Pharmacy 333 ft ~2 min
4085 Broadway, New York 10032
Restaurant Koronet Pizza 326 ft ~2 min
Pharmacy Twins Pharmacy 2 413 ft ~2 min
Restaurant Papa John's 398 ft ~2 min
Convenience Yummilicious 473 ft ~2 min
Gas station Shell 477 ft ~2 min
Parking 537 ft ~3 min
Mo-Su 06:00-20:00
Convenience Best NY Deli Grocery 605 ft ~3 min
4133 Broadway, 10033
Restaurant Mi Paso 563 ft ~3 min
Coffee Hilltop Perk 648 ft ~3 min
Grocery The Food Emporium 679 ft ~3 min
4138 Broadway, 10033
Mo-Sa 07:00-21:00, Su 08:00-21:00
Grocery Key Food 710 ft ~3 min
1239 Saint Nicholas Avenue, New York 10032-1903
Mo-Sa 07:00-22:00, Su 08:00-21:00
Pharmacy San Nicholas Pharmacy 735 ft ~3 min
1265 Saint Nicholas Avenue, New York 10033
Mo-Fr 09:00-19:00; Sa 09:00-18:00; Su off
Transit Broadway & West 170th Street 788 ft ~3 min
Coffee Prestige Cafe & Deli 805 ft ~4 min
Transit Saint Nicholas Avenue & West 173rd Street 828 ft ~4 min
Transit Saint Nicholas Avenue & West 174th Street 844 ft ~4 min
Coffee Barnes & Noble CUIMC Bookstore Cafe 1,020 ft ~4 min
711 West 168th Street, New York 10032
Mo-Fr 08:00-17:00; Sa-Su 10:00-16:00
Parking Centerpark Broadway Parking Garage 0.20 mi ~4 min
Parking Centerpark Broadway Parking Garage 0.21 mi ~5 min
Grocery Fine Fare Gold 0.27 mi ~6 min
Convenience Chop Cheese Deli 0.37 mi ~8 min
Hotel Radio Hotel 0.50 mi ~10 min
Distances are straight‑line estimates — walking routes may be longer. Hours and phone numbers can change; call ahead to confirm.
Credentials and Medicare
NPPES does not list a state licence number for this record. That is not unusual — organizations and some provider types are not required to file one. Verify current licensure with the relevant state board before care.
This NPI does not appear in the PECOS Medicare enrolment file. Providers who do not bill Medicare — or who bill only through a group's enrolment — will not appear here. It is not a sign of any problem with the registration.
What Sleep Disorder Diagnostic covers
Definition to come... NUCC Health Care Provider Taxonomy, code 261QS1200X
The taxonomy records how the provider classifies their own practice. It does not confirm which conditions they currently treat, whether they are accepting new patients, or which insurance they take — call the office for that.
Full NPPES record
An NPI-2 identifies an organization — a clinic, hospital, group practice, laboratory, or supplier. Individual clinicians working there hold their own NPI-1 numbers separately, so a bill may reference both.
| NPI | 1003129818 valid check digit |
|---|---|
| Entity type | Organization (NPI-2) |
| Enumeration date | Jul 21, 2010 |
| Last updated | Jul 21, 2010 |
| Status | Active |
| Practice address |
286 FORT WASHINGTON AVE SUITE 1B New York, NY 10032 (718) 791-9649 |
Number check
How the check works, step by step
Every NPI carries a Luhn check digit — the same scheme used on credit cards. CMS prefixes the number with 80840 before computing it, which marks it as a US health identifier.
| Digit | 8 | 0 | 8 | 4 | 0 | 1 | 0 | 0 | 3 | 1 | 2 | 9 | 8 | 1 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 0 | 0 | 3 | 2 | 2 | 9 | 8 | 2 |
Sum = 52 · next multiple of 10 = 60 · check digit = 8 · actual last digit = 8
A valid check digit only means the number is well-formed. It does not mean the provider is licensed, active, or in good standing — those are separate questions answered by the sections above.