Cesar Viana, M.D.
Cesar Viana, M.D. is a provider specialising in Clinic/Center in Toa Baja, PR, registered under NPI 1396887196. This provider registers 3 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 KM1.5 CALLE 863 PAJAROS, Toa Baja, PR 00949. 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 |
|---|---|---|
| 06795 | PR | Pediatrics Physician |
| 06795 | PR | General Practice Physician |
This provider holds licence 06795 issued in PR. 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 Clinic/Center covers
A facility or distinct part of one used for the diagnosis and treatment of outpatients. "Clinic/Center" is irregularly defined, sometimes being limited to organizations serving specialized treatment requirements or distinct patient/client groups (e.g., radiology, poor, and public health). NUCC Health Care Provider Taxonomy, code 261Q00000X
All registered taxonomy codes
This provider registers 3 taxonomy codes. The primary code is what appears on most claims; the others record additional recognised specialties.
| Code | Specialty | Licence | State | |
|---|---|---|---|---|
| 261Q00000X | Clinic/Center | — | — | primary |
| 208000000X | Pediatrics Physician | 06795 | PR | |
| 208D00000X | General Practice Physician | 06795 | PR |
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 | 1396887196 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Feb 12, 2007 |
| Last updated | Dec 30, 2015 |
| Status | Active |
| Sole proprietor | Yes |
| Credential | M.D. |
| Practice address |
KM1.5 CALLE 863 PAJAROS Toa Baja, PR 00949 (787) 798-4118 Fax (787) 798-4118 |
| Mailing address |
B1 CALLE SAN MATEO URB.SAN PEDRO Toa Baja, PR 00949 |
| Other identifiers |
9-8939 VI
· TRIPLE S (PR) 6795 · COSVI (PR) 6795 · CIGNA (PR) 6795 · PALIC (PR) 6795 · MAPFRE (PR) 068875 · CRUZ AZUL (PR) |
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 | 9 | 6 | 8 | 8 | 7 | 1 | 9 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 3 | 9 | 6 | 7 | 8 | 5 | 1 | 9 |
Sum = 74 · next multiple of 10 = 80 · 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.