Cecelia Sweeney, LCSW CASAC
Cecelia Sweeney, LCSW CASAC is an Addiction (Substance Use Disorder) Counselor in Brentwood, NY, registered under NPI 1972606556. This provider registers 2 separate taxonomy codes, which usually means they practise across more than one recognised specialty.
Getting there
The practice address on file is 39 W WILLOW ST, Brentwood, NY 11717. 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 |
|---|---|---|
| 1331 | NY | Addiction (Substance Use Disorder)… primary |
| R035580 | NY | Clinical Social Worker |
This provider holds licence 1331 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
- Practitioner - Clinical Social Worker
- PAC ID
- 3072527027
- Enrollment ID
- I20060130000660
Medicare enrolment is recorded as approved under the provider type Practitioner - Clinical Social Worker. 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 Addiction (Substance Use Disorder) covers
Definition to come... NUCC Health Care Provider Taxonomy, code 101YA0400X
All registered taxonomy codes
This provider registers 2 taxonomy codes. The primary code is what appears on most claims; the others record additional recognised specialties.
| Code | Specialty | Licence | State | |
|---|---|---|---|---|
| 101YA0400X | Addiction (Substance Use Disorder) Counselor Addiction (Substance Use Disorder) | 1331 | NY | primary |
| 1041C0700X | Clinical Social Worker Clinical | R035580 | NY |
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 | 1972606556 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Sep 7, 2006 |
| Last updated | Sep 11, 2025 |
| Status | Active |
| Sole proprietor | No |
| Credential | LCSW CASAC |
| Practice address |
39 W WILLOW ST Brentwood, NY 11717 (631) 581-2199 Fax (631) 581-1942 |
| Other identifiers |
0004292346
· Other N3353 · Other 2718OR271384 · Other 0004292346 · Other 01969451 · Medicaid (NY) P33626623 · Other S7564 · Other 223760 · Other 45029 · Other 9529700 · Other 2269757 · Other 7400635 · Other 93929 · Other 93593 · Other P1895303 · Other |
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 | 9 | 7 | 2 | 6 | 0 | 6 | 5 | 5 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 9 | 5 | 2 | 3 | 0 | 3 | 5 | 1 |
Sum = 54 · next multiple of 10 = 60 · check digit = 6 · actual last digit = 6
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.