Alexander Jonokuchi, MD
Alexander Jonokuchi, MD is a Neurology with Special Qualifications in Child Neurology Physician in Brooklyn, NY, registered under NPI 1689133746.
Getting there
The practice address on file is 4802 10TH AVE, Brooklyn, NY 11219. 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 |
|---|---|---|
| 333087 | NY | Neurology with Special Qualifications in… primary |
This provider holds licence 333087 issued in NY. 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 - Pediatric Medicine
- PAC ID
- 1557692373
- Enrollment ID
- I20250721004150
Medicare enrolment is recorded as approved under the provider type Practitioner - Pediatric Medicine. 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 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 | 1689133746 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Mar 18, 2019 |
| Last updated | Jan 23, 2026 |
| Status | Active |
| Sole proprietor | No |
| Credential | MD |
| Practice address |
4802 10TH AVE Brooklyn, NY 11219 (718) 283-7500 |
| Mailing address |
947 48TH ST Brooklyn, NY 11219 |
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 | 1 | 3 | 3 | 7 | 4 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 6 | 7 | 9 | 2 | 3 | 6 | 7 | 8 |
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.