CT CLINICAL SERVICES, INC.
CT CLINICAL SERVICES, INC. is an organization registered with the National Plan and Provider Enumeration System (NPPES) under NPI 1497025035, based in New Haven, CT. The organization lists 5 taxonomy classifications, with Substance Use Disorder Rehabilitation Clinic/Center recorded as primary.
Getting there
The practice address on file is 189 ORANGE ST, New Haven, CT 06510. 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 |
|---|---|---|
| 0425 | CT | Substance Use Disorder Rehabilitation… primary |
| 0509 | CT | Adult Mental Health Clinic/Center |
This provider holds licence 0425 issued in CT. A licence number in NPPES reflects what was filed at registration — it does not confirm the licence is still active today.
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 Rehabilitation, Substance Use Disorder covers
Definition to come... NUCC Health Care Provider Taxonomy, code 261QR0405X
All registered taxonomy codes
This provider registers 5 taxonomy codes. The primary code is what appears on most claims; the others record additional recognised specialties.
| Code | Specialty | Licence | State | |
|---|---|---|---|---|
| 261QR0405X | Substance Use Disorder Rehabilitation Clinic/Center Rehabilitation, Substance Use Disorder | 0425 | CT | primary |
| 261QM0850X | Adult Mental Health Clinic/Center Adult Mental Health | 0509 | CT | |
| 323P00000X | Psychiatric Residential Treatment Facility | — | — | |
| 261QM0855X | Adolescent and Children Mental Health Clinic/Center Adolescent and Children Mental Health | — | — | |
| 3245S0500X | Children's Substance Abuse Rehabilitation Facility Substance Abuse Treatment, Children | — | — |
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 | 1497025035 valid check digit |
|---|---|
| Entity type | Organization (NPI-2) |
| Enumeration date | Jan 12, 2012 |
| Last updated | Jan 2, 2026 |
| Status | Active |
| Practice address |
189 ORANGE ST New Haven, CT 06510 (203) 937-2309 |
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 | 4 | 9 | 7 | 0 | 2 | 5 | 0 | 3 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 4 | 9 | 7 | 0 | 2 | 1 | 0 | 6 |
Sum = 55 · next multiple of 10 = 60 · check digit = 5 · actual last digit = 5
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.