Stephen Cidoni
Stephen Cidoni is a Behavior Technician in Port Jefferson Station, NY, registered under NPI 1003678707. NPPES records them as a sole proprietor, meaning the practice is not incorporated as a separate legal entity.
Getting there
Here is what surrounds this office in Port Jefferson Station, based on OpenStreetMap data collected Sep 15, 2026. Parking is available about 1,009 ft away. The nearest transit stop is 0.27 mi away, served by Chereb Lane & Patchogue Road.
Getting here and what is nearby
Parking 742 ft ~3 min
Parking 999 ft ~4 min
Parking 1,009 ft ~4 min
Convenience Speedway 0.20 mi ~5 min
Gas station Speedway 0.21 mi ~5 min
Transit Chereb Lane & Patchogue Road 0.27 mi ~6 min
Grocery Ideal Food Basket 0.30 mi ~6 min
Restaurant Toast Coffee + Kitchen 0.36 mi ~8 min
650 Patchogue Road, Port Jefferson Station 11776
Mo-Fr 08:00-15:00; Sa-Su 07:30-15:30
Restaurant Grumpy Jack's Inc 0.42 mi ~9 min
Restaurant Hana 0.44 mi ~9 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 Behavior Technician covers
The behavior technician is a paraprofessional who practices under the close, ongoing supervision of a behavior analyst or assistant behavior analyst certified by the Behavior Analyst Certification Board and/or credentialed by a state (such as through licensure). The behavior technician is primarily responsible for the implementation of components of behavior-analytic treatment plans developed by the supervisor. That may include collecting data on treatment targets and conducting certain types of behavioral assessments (e.g., stimulus preference assessments). The behavior technician does not design treatment or assessment plans or procedures but provides services as assigned by the supervisor responsible for his or her work. NUCC Health Care Provider Taxonomy, code 106S00000X
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-1 identifies a single person. It stays with the clinician for life, even if they move practice or change state, which is why the address on file can lag behind where they actually work today.
| NPI | 1003678707 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Jan 29, 2024 |
| Last updated | Jan 29, 2024 |
| Status | Active |
| Sole proprietor | Yes |
| Gender | Male |
| Practice address |
299 HALLOCK AVE Port Jefferson Station, NY 11776 (631) 475-4284 Fax (631) 331-2204 |
| Mailing address |
9 PAL CT Shoreham, NY 11786 |
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 | 6 | 7 | 8 | 7 | 0 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 0 | 0 | 3 | 3 | 7 | 7 | 7 | 0 |
Sum = 53 · next multiple of 10 = 60 · check digit = 7 · actual last digit = 7
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.