Clarissa Cowan, OTRL
Clarissa Cowan, OTRL is a Neurorehabilitation Occupational Therapist in San Diego, CA, registered under NPI 1467657676. 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 4510 VIEWRIDGE AVE, San Diego, CA 92123. 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 |
|---|---|---|
| 708 | CA | Neurorehabilitation Occupational Therapist primary |
This provider holds licence 708 issued in CA. 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 - Occupational Therapist In Private Practice
- PAC ID
- 0345379194
- Enrollment ID
- I20100603000725
Medicare enrolment is recorded as approved under the provider type Practitioner - Occupational Therapist In Private Practice. Being enrolled means the provider can bill Medicare; it does not tell you whether they are currently accepting new Medicare patients. Call the office to confirm.
What Neurorehabilitation covers
Definition to come... NUCC Health Care Provider Taxonomy, code 225XN1300X
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 | 1467657676 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Jun 18, 2007 |
| Last updated | Nov 30, 2021 |
| Status | Active |
| Sole proprietor | Yes |
| Credential | OTRL |
| Practice address |
4510 VIEWRIDGE AVE San Diego, CA 92123 (858) 694-4923 |
| Mailing address |
1115 SAVOY ST San Diego, CA 92107 |
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 | 4 | 6 | 7 | 6 | 5 | 7 | 6 | 7 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 4 | 3 | 7 | 3 | 5 | 5 | 6 | 5 |
Sum = 64 · next multiple of 10 = 70 · 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.