Karen Murphy
Karen Murphy is an Environmental Modification Occupational Therapist in Marine City, MI, registered under NPI 1346179249. 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 412 RIVER VALLEY DR, Marine City, MI 48039. 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 |
|---|---|---|
| 5201002656 | MI | Environmental Modification Occupational… primary |
This provider holds licence 5201002656 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 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
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 | 1346179249 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | May 16, 2026 |
| Last updated | May 16, 2026 |
| Status | Active |
| Sole proprietor | Yes |
| Practice address |
412 RIVER VALLEY DR Marine City, MI 48039 (586) 872-4161 |
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 | 3 | 4 | 6 | 1 | 7 | 9 | 2 | 4 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 3 | 8 | 6 | 2 | 7 | 9 | 2 | 8 |
Sum = 71 · next multiple of 10 = 80 · 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.