Therese Williams, OT/L, CHT
Therese Williams, OT/L, CHT is a Hand Occupational Therapist in Clarkston, MI, registered under NPI 1164721049.
Getting there
The practice address on file is 7164 N MAIN ST, Clarkston, MI 48346. 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 |
|---|---|---|
| 5201003200 | MI | Hand Occupational Therapist primary |
This provider holds licence 5201003200 issued in MI. 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 Hand covers
Definition to come... NUCC Health Care Provider Taxonomy, code 225XH1200X
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 | 1164721049 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Mar 18, 2011 |
| Last updated | Mar 18, 2011 |
| Status | Active |
| Sole proprietor | No |
| Credential | OT/L, CHT |
| Practice address |
7164 N MAIN ST Clarkston, MI 48346 (248) 625-6400 Fax (248) 625-6006 |
| Mailing address |
42615 GARFIELD RD Clinton Township, MI 48038 |
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 | 6 | 4 | 7 | 2 | 1 | 0 | 4 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 1 | 3 | 4 | 5 | 2 | 2 | 0 | 8 |
Sum = 51 · next multiple of 10 = 60 · 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.