Christine Baker, RN, CNS
Christine Baker, RN, CNS is a Clinical Nurse Specialist in Chicago, IL, registered under NPI 1194842815. This provider registers 4 separate taxonomy codes, which usually means they practise across more than one recognised specialty. NPPES records them as a sole proprietor, meaning the practice is not incorporated as a separate legal entity.
Getting there
The practice address on file is 5841 S MARYLAND AVE, Chicago, IL 60637. 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 |
|---|---|---|
| 277000877 | IL | Clinical Nurse Specialist primary |
| 041-219185 | IL | Wound Care Registered Nurse |
| 041-219185 | IL | Continence Care Registered Nurse |
| 041-219185 | IL | Ostomy Care Registered Nurse |
This provider holds licence 277000877 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
- Practitioner - Certified Clinical Nurse Specialist (cns)
- PAC ID
- 7416188271
Medicare enrolment is recorded as approved under the provider type Practitioner - Certified Clinical Nurse Specialist (cns). 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 Clinical Nurse Specialist covers
A registered nurse who, through a graduate degree program in nursing, or through a formal post-basic education program or continuing education courses and clinical experience, is expert in a specialty area of nursing practice within one or more of the components of direct patient/client care, consultation, education, research and administration. NUCC Health Care Provider Taxonomy, code 364S00000X
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 | |
|---|---|---|---|---|
| 364S00000X | Clinical Nurse Specialist | 277000877 | IL | primary |
| 163WW0000X | Wound Care Registered Nurse Wound Care | 041-219185 | IL | |
| 163WC2100X | Continence Care Registered Nurse Continence Care | 041-219185 | IL | |
| 163WX1500X | Ostomy Care Registered Nurse Ostomy Care | 041-219185 | IL |
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 | 1194842815 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Mar 26, 2007 |
| Last updated | Mar 19, 2025 |
| Status | Active |
| Sole proprietor | Yes |
| Credential | RN, CNS |
| Practice address |
5841 S MARYLAND AVE Chicago, IL 60637 (773) 702-9618 |
| Mailing address |
8741 WEDGEWOOD DR Burr Ridge, IL 60527 |
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 | 1 | 9 | 4 | 8 | 4 | 2 | 8 | 1 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 1 | 9 | 4 | 7 | 4 | 4 | 8 | 2 |
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.