Kathy Hooyenga, OTR/L , ATP, RET
Kathy Hooyenga, OTR/L , ATP, RET is an Environmental Modification Occupational Therapist in Chicago, IL, registered under NPI 1750609079. This provider registers 2 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 1640 W ROOSEVELT RD RM 415, Chicago, IL 60608. 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 |
|---|---|---|
| 056.003142 | IL | Environmental Modification Occupational… primary |
| 056.003142 | IL | Physical Rehabilitation Occupational… |
This provider holds licence 056.003142 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 Environmental Modification covers
Occupational therapy practitioners are experts at identifying the cause of difficulties in performance of activities of daily living and instrumental activities of daily living. Occupational therapy practitioners evaluate the client, their environment, and their occupational performance in that environment, as well as make recommendations for products to improve the fit between the client, place, and activity. Occupational therapists can evaluate both the skills of the client and the environmental features that support or limit the performance of meaningful or necessary activities, thereby enhancing health, safety and well-being. Based on this assessment, they recommend modification and intervention strategies that improve the fit between the person and his or her environment. NUCC Health Care Provider Taxonomy, code 225XE0001X
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 | |
|---|---|---|---|---|
| 225XE0001X | Environmental Modification Occupational Therapist Environmental Modification | 056.003142 | IL | primary |
| 225XP0019X | Physical Rehabilitation Occupational Therapist Physical Rehabilitation | 056.003142 | 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 | 1750609079 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | May 11, 2010 |
| Last updated | May 11, 2010 |
| Status | Active |
| Sole proprietor | Yes |
| Gender | Female |
| Credential | OTR/L , ATP, RET |
| Practice address |
1640 W ROOSEVELT RD RM 415 Chicago, IL 60608 (312) 996-3196 Fax (312) 413-3709 |
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 | 7 | 5 | 0 | 6 | 0 | 9 | 0 | 7 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 7 | 1 | 0 | 3 | 0 | 9 | 0 | 5 |
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.