OAK-LEYDEN DEVELOPMENTAL SERVICES
OAK-LEYDEN DEVELOPMENTAL SERVICES is an organization registered with the National Plan and Provider Enumeration System (NPPES) under NPI 1366814220, based in Oak Park, IL. The organization lists 2 taxonomy classifications, with Intellectual and/or Developmental Disabilities Community Based Residential Treatment Facility recorded as primary.
Getting there
The practice address on file is 411 CHICAGO AVE, Oak Park, IL 60302. 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 |
|---|---|---|
| 93C186 | IL | Intellectual and/or Developmental… primary |
This provider holds licence 93C186 issued in IL. 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 Community Based Residential Treatment Facility, Intellectual and/or Developmental Disabilities covers
A home-like residential facility providing habilitation, support and monitoring services to individuals diagnosed with intellectual and/or developmental disabilities. NUCC Health Care Provider Taxonomy, code 320900000X
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 | |
|---|---|---|---|---|
| 320900000X | Intellectual and/or Developmental Disabilities Community Based Residential Treatment Facility | 93C186 | IL | primary |
| 251C00000X | Developmentally Disabled Services Day Training Agency | — | — |
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 | 1366814220 valid check digit |
|---|---|
| Entity type | Organization (NPI-2) |
| Enumeration date | Oct 30, 2015 |
| Last updated | Oct 30, 2015 |
| Status | Active |
| Practice address |
411 CHICAGO AVE Oak Park, IL 60302 (708) 524-1050 Fax (708) 524-2469 |
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 | 3 | 6 | 6 | 8 | 1 | 4 | 2 | 2 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 3 | 3 | 6 | 7 | 1 | 8 | 2 | 4 |
Sum = 60 · next multiple of 10 = 60 · check digit = 0 · actual last digit = 0
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.