Margaret Gauthier, P.T.
Margaret Gauthier, P.T. is a Neurology Physical Therapist in Chicago, IL, registered under NPI 1033243506. This provider registers 2 separate taxonomy codes, which usually means they practise across more than one recognised specialty.
Getting there
The practice address on file is 1945 W WILSON AVE SU. 100, Chicago, IL 60640. 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 |
|---|---|---|
| 070.006239 | IL | Physical Therapist |
| 070.006239 | IL | Neurology Physical Therapist primary |
This provider holds licence 070.006239 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 Neurology covers
A licensed physical therapist, including but not limited to an individual who is a Board Certified Specialist in Neurologic Physical Therapy, who has demonstrated specialized knowledge and skill in neuroanatomy and neurophysiology, including knowledge of central, peripheral, and autonomic nervous systems in populations with and without neurologic conditions; motor control and movement sciences in populations with and without neurologic conditions; behavioral sciences, including psychology and neuropsychology, and psychiatry; and medical management and pharmacology. NUCC Health Care Provider Taxonomy, code 2251N0400X
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 | |
|---|---|---|---|---|
| 225100000X | Physical Therapist | 070.006239 | IL | |
| 2251N0400X | Neurology Physical Therapist Neurology | 070.006239 | IL | primary |
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 | 1033243506 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Mar 15, 2007 |
| Last updated | Sep 11, 2025 |
| Status | Active |
| Sole proprietor | No |
| Gender | Female |
| Credential | P.T. |
| Practice address |
1945 W WILSON AVE SU. 100 Chicago, IL 60640 (312) 238-3114 Fax (312) 238-3130 |
| Mailing address |
2440 N 73RD AVE Elmwood Park, IL 60707 |
| Other names |
Margaret Smith Former Legal Business Name |
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 | 3 | 3 | 2 | 4 | 3 | 5 | 0 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 0 | 6 | 3 | 4 | 4 | 6 | 5 | 0 |
Sum = 54 · next multiple of 10 = 60 · check digit = 6 · actual last digit = 6
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.