HOWARD SIU, M.D. A P.C.
HOWARD SIU, M.D. A P.C. is an organization registered with the National Plan and Provider Enumeration System (NPPES) under NPI 1992085070, based in Fremont, CA. The organization lists 3 taxonomy classifications, with Neurology Physician recorded as primary.
Getting there
The practice address on file is 43334 BRYANT ST SUITE3, Fremont, CA 94539. 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 |
|---|---|---|
| G32107 | CA | Neurology Physician primary |
| G32107 | CA | Electrodiagnostic Medicine Physician |
| G32107 | CA | Internal Medicine Physician |
This provider holds licence G32107 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 Neurology covers
A Neurologist specializes in the diagnosis and treatment of diseases or impaired function of the brain, spinal cord, peripheral nerves, muscles, autonomic nervous system, and blood vessels that relate to these structures. NUCC Health Care Provider Taxonomy, code 2084N0400X
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 | |
|---|---|---|---|---|
| 2084N0400X | Neurology Physician Neurology | G32107 | CA | primary |
| 204R00000X | Electrodiagnostic Medicine Physician | G32107 | CA | |
| 207R00000X | Internal Medicine Physician | G32107 | 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-2 identifies an organization — a clinic, hospital, group practice, laboratory, or supplier. Individual clinicians working there hold their own NPI-1 numbers separately, so a bill may reference both.
| NPI | 1992085070 valid check digit |
|---|---|
| Entity type | Organization (NPI-2) |
| Enumeration date | Aug 22, 2011 |
| Last updated | Aug 22, 2011 |
| Status | Active |
| Practice address |
43334 BRYANT ST SUITE3 Fremont, CA 94539 (510) 657-9192 |
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 | 9 | 9 | 2 | 0 | 8 | 5 | 0 | 7 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 9 | 9 | 2 | 0 | 8 | 1 | 0 | 5 |
Sum = 60 · next multiple of 10 = 60 · check digit = 0 · actual last digit = 0
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.