CHICAGO MUSCULOSKELETAL INSTITUTE, S.C.
CHICAGO MUSCULOSKELETAL INSTITUTE, S.C. is an organization registered with the National Plan and Provider Enumeration System (NPPES) under NPI 1528153335, based in Chicago, IL. It is classified under Multi-Specialty Clinic/Center.
Getting there
The practice address on file is 5645 W ADDISON ST, Chicago, IL 60634. 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 |
|---|---|---|
| 036105713 | IL | Multi-Specialty Clinic/Center primary |
This provider holds licence 036105713 issued in IL. 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
- 3274597208
- Enrollment ID
- O20041118000480
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 Multi-Specialty covers
Definition to come... NUCC Health Care Provider Taxonomy, code 261QM1300X
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 | 1528153335 valid check digit |
|---|---|
| Entity type | Organization (NPI-2) |
| Enumeration date | Oct 4, 2006 |
| Last updated | Jan 20, 2026 |
| Status | Active |
| Practice address |
5645 W ADDISON ST Chicago, IL 60634 (217) 341-3935 Fax (800) 281-6952 |
| Mailing address |
PO BOX 411303 Saint Louis, MO 63141 |
| Other identifiers |
036105713
· Medicaid (IL) |
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 | 5 | 2 | 8 | 1 | 5 | 3 | 3 | 3 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 5 | 4 | 8 | 2 | 5 | 6 | 3 | 6 |
Sum = 65 · next multiple of 10 = 70 · 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.