Nadine Yassa, MD
Nadine Yassa, MD is a Neurology with Special Qualifications in Child Neurology Physician in Roseville, CA, registered under NPI 1689656647. 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 991 RESERVE DRIVE SUITE A, Roseville, CA 95678. 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 |
|---|---|---|
| A48720 | CA | Neurology with Special Qualifications in… primary |
This provider holds licence A48720 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 - Neurology
- PAC ID
- 3173511839
Medicare enrolment is recorded as approved under the provider type Practitioner - Neurology. This means the provider is enrolled to bill Medicare, though it does not tell you whether they are currently accepting new Medicare patients. Call the office to confirm.
What Neurology with Special Qualifications in Child Neurology covers
A Child Neurologist specializes in neurology with special skills in diagnosis and treatment of neurologic disorders of the neonatal period, infancy, early childhood, and adolescence. NUCC Health Care Provider Taxonomy, code 2084N0402X
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 | 1689656647 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Nov 16, 2005 |
| Last updated | Jan 11, 2013 |
| Status | Active |
| Sole proprietor | Yes |
| Credential | MD |
| Practice address |
991 RESERVE DRIVE SUITE A Roseville, CA 95678 (916) 789-8811 Fax (916) 789-8809 |
| Other identifiers |
P00190174
· RAILROAD MEDICARE 00A487201 (CA) CGP159990 · MEDICAID CCS PROVIDER NUMBER (CA) 00A487202 · MEDICARE PTAN - INDIVIDUAL (CA) |
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 | 6 | 8 | 9 | 6 | 5 | 6 | 6 | 4 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 6 | 7 | 9 | 3 | 5 | 3 | 6 | 8 |
Sum = 73 · next multiple of 10 = 80 · check digit = 7 · actual last digit = 7
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.