NASSAU PSYCHIATRIC SERVICES, P.C.
NASSAU PSYCHIATRIC SERVICES, P.C. is an organization registered with the National Plan and Provider Enumeration System (NPPES) under NPI 1104273762, based in Uniondale, NY. It is classified under Mental Health Counselor.
Getting there
The practice address on file is 626 RXR PLZ STE 655, Uniondale, NY 11556. We have not yet mapped what surrounds this office — parking, transit, and nearby pharmacies are added as our data collection reaches each location.
Credentials and Medicare
| Licence | State | Specialty |
|---|---|---|
| 243373 | NY | Mental Health Counselor primary |
This provider holds licence 243373 issued in NY. A licence number in NPPES reflects what was filed at registration — it does not confirm the licence is still active today.
- Status
- Approved
- Provider type
- Part B Supplier - Clinic/group Practice
- PAC ID
- 4385930825
- Enrollment ID
- O20160908001984
Medicare enrolment is recorded as approved under the provider type Part B Supplier - Clinic/group Practice. Being enrolled means the provider can bill Medicare; it does not tell you whether they are currently accepting new Medicare patients. Call the office to confirm.
What Mental Health covers
Definition to come... NUCC Health Care Provider Taxonomy, code 101YM0800X
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 | 1104273762 valid check digit |
|---|---|
| Entity type | Organization (NPI-2) |
| Enumeration date | May 24, 2016 |
| Last updated | Sep 21, 2025 |
| Status | Active |
| Practice address |
626 RXR PLZ STE 655 Uniondale, NY 11556 (516) 280-9030 Fax (516) 280-9029 |
| Mailing address |
626 RXR PLZ FL 6 Uniondale, NY 11556 |
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 | 1 | 0 | 4 | 2 | 7 | 3 | 7 | 6 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 1 | 0 | 4 | 4 | 7 | 6 | 7 | 3 |
Sum = 58 · next multiple of 10 = 60 · check digit = 2 · actual last digit = 2
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.