Adowa Serwa Osei Nyarko, RN. CCM
Adowa Serwa Osei Nyarko, RN. CCM is an Administrator Registered Nurse in Valencia, CA, registered under NPI 1245350461. This provider registers 8 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 24910 AVENUE TIBBITTS STE 5, Valencia, CA 91355. 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 |
|---|---|---|
| 790732 | CA | Administrator Registered Nurse primary |
| 790732 | CA | Registered Nurse |
| 4205479 | CA | Case Management Registered Nurse |
| 790732 | CA | Community Health Registered Nurse |
| 790732 | CA | Home Health Registered Nurse |
| 790732 | CA | Hospice Registered Nurse |
| 790732 | CA | Psychiatric/Mental Health Registered Nurse |
| 790732 | CA | Wound Care Registered Nurse |
This provider holds licence 790732 issued in CA. 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 Administrator covers
Definition to come... NUCC Health Care Provider Taxonomy, code 163WA2000X
All registered taxonomy codes
This provider registers 8 taxonomy codes. The primary code is what appears on most claims; the others record additional recognised specialties.
| Code | Specialty | Licence | State | |
|---|---|---|---|---|
| 163WA2000X | Administrator Registered Nurse Administrator | 790732 | CA | primary |
| 163W00000X | Registered Nurse | 790732 | CA | |
| 163WC0400X | Case Management Registered Nurse Case Management | 4205479 | CA | |
| 163WC1500X | Community Health Registered Nurse Community Health | 790732 | CA | |
| 163WH0200X | Home Health Registered Nurse Home Health | 790732 | CA | |
| 163WH1000X | Hospice Registered Nurse Hospice | 790732 | CA | |
| 163WP0808X | Psychiatric/Mental Health Registered Nurse Psychiatric/Mental Health | 790732 | CA | |
| 163WW0000X | Wound Care Registered Nurse Wound Care | 790732 | CA |
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 | 1245350461 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Mar 30, 2007 |
| Last updated | Nov 24, 2020 |
| Status | Active |
| Sole proprietor | Yes |
| Credential | RN. CCM |
| Practice address |
24910 AVENUE TIBBITTS STE 5 Valencia, CA 91355 (661) 771-6609 |
| Mailing address |
24910 AVENUE TIBBITTS Valencia, CA 91355 |
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 | 2 | 4 | 5 | 3 | 5 | 0 | 4 | 6 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 2 | 8 | 5 | 6 | 5 | 0 | 4 | 3 |
Sum = 59 · next multiple of 10 = 60 · check digit = 1 · actual last digit = 1
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.