OAK STREET HEALTH PHYSICIANS GROUP, PC
OAK STREET HEALTH PHYSICIANS GROUP, PC is an organization registered with the National Plan and Provider Enumeration System (NPPES) under NPI 1083051643, based in Chicago, IL. The organization lists 4 taxonomy classifications, with Primary Care Clinic/Center recorded as primary.
Getting there
The practice address on file is 1715 E 95TH ST, Chicago, IL 60617. 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 |
|---|---|---|
| 036132088 | IL | Primary Care Clinic/Center primary |
This provider holds licence 036132088 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
- 7517109879
Medicare enrolment is recorded as approved under the provider type Part B Supplier - Clinic/group Practice. This means the provider is enrolled to bill Medicare, though it does not tell you whether they are currently accepting new Medicare patients. Call the office to confirm.
What Primary Care covers
Definition to come... NUCC Health Care Provider Taxonomy, code 261QP2300X
All registered taxonomy codes
This provider registers 4 taxonomy codes. The primary code is what appears on most claims; the others record additional recognised specialties.
| Code | Specialty | Licence | State | |
|---|---|---|---|---|
| 261QP2300X | Primary Care Clinic/Center Primary Care | 036132088 | IL | primary |
| 207R00000X | Internal Medicine Physician | — | — | |
| 363L00000X | Nurse Practitioner | — | — | |
| 363LF0000X | Family Nurse Practitioner Family | — | — |
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 | 1083051643 valid check digit |
|---|---|
| Entity type | Organization (NPI-2) |
| Enumeration date | May 22, 2013 |
| Last updated | Jul 23, 2025 |
| Status | Active |
| Practice address |
1715 E 95TH ST Chicago, IL 60617 (773) 768-4437 Fax (773) 564-3515 |
| Mailing address |
PO BOX 746721 Atlanta, GA 30374 |
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 | 0 | 8 | 3 | 0 | 5 | 1 | 6 | 4 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 0 | 7 | 3 | 0 | 5 | 2 | 6 | 8 |
Sum = 57 · next multiple of 10 = 60 · check digit = 3 · actual last digit = 3
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.