Laura Williamson, MSN,CWON,AG-CNS-BC
Laura Williamson, MSN,CWON,AG-CNS-BC is a Gerontology Clinical Nurse Specialist in Chicago, IL, registered under NPI 1962108639. This provider registers 5 separate taxonomy codes, which usually means they practise across more than one recognised specialty.
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 |
|---|---|---|
| 041.267242 | IL | Gerontology Clinical Nurse Specialist primary |
| 041.267242 | IL | Registered Nurse |
| 041.267242 | IL | Enterostomal Therapy Registered Nurse |
| 041.267242 | IL | Wound Care Registered Nurse |
| 041.267242 | IL | Ostomy Care Registered Nurse |
This provider holds licence 041.267242 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
- 1557717147
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 Gerontology covers
Definition to come... NUCC Health Care Provider Taxonomy, code 364SG0600X
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 | |
|---|---|---|---|---|
| 364SG0600X | Gerontology Clinical Nurse Specialist Gerontology | 041.267242 | IL | primary |
| 163W00000X | Registered Nurse | 041.267242 | IL | |
| 163WE0900X | Enterostomal Therapy Registered Nurse Enterostomal Therapy | 041.267242 | IL | |
| 163WW0000X | Wound Care Registered Nurse Wound Care | 041.267242 | IL | |
| 163WX1500X | Ostomy Care Registered Nurse Ostomy Care | 041.267242 | 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 | 1962108639 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Feb 6, 2023 |
| Last updated | Apr 6, 2023 |
| Status | Active |
| Sole proprietor | No |
| Credential | MSN,CWON,AG-CNS-BC |
| Practice address |
5841 S MARYLAND AVE Chicago, IL 60637 (773) 926-8575 |
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 | 9 | 6 | 2 | 1 | 0 | 8 | 6 | 3 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 9 | 3 | 2 | 2 | 0 | 7 | 6 | 6 |
Sum = 61 · next multiple of 10 = 70 · check digit = 9 · actual last digit = 9
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.