NPI Portal NPI Lookup & Verification

Los Altos Neurology

Los Altos Neurology is a healthcare organization registered as Neurology Physician in Mountain View, CA, holding Type 2 (organization) NPI 1821724972 since 2022. The authorized official on file is Anton Ostashko, President.

✓ Active NPI ✓ Valid NPI checksum

NPI 1821724972
Entity type Organization (Type 2)
Legal business name Los Altos Neurology
Practice address 2500 HOSPITAL DR STE 4B, Mountain View, CA, 94040
Phone 6504927999
Fax 6503057999
Enumeration date 2022-07-29
Last updated in NPPES 2022-10-01

Authorized official

Name Anton Ostashko
Title President
Phone 6504927999

Taxonomy & classification

Taxonomy code Specialty Primary License State
2084N0400X Neurology Physician Primary
Copy-ready billing details
Provider: Los Altos Neurology
NPI: 1821724972
Taxonomy: 2084N0400X (Neurology Physician)
Address: 2500 HOSPITAL DR STE 4B, Mountain View, CA, 94040

Providers at this address

NPI Name Type Specialty Location
1134617459 Anton Ostashko Individual Neurology Physician Mountain View, CA
1023896933 Bileg MD Organization Primary Care Clinic/Center Mountain View, CA

Verify this record

Cross-check NPI 1821724972 against the authoritative CMS record: view Los Altos Neurology on the official NPPES registry .

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes — even if the provider moves or changes specialty. Read the full guide or validate an NPI number.

Frequently asked questions

What is the NPI number for Los Altos Neurology?
The NPI for Los Altos Neurology is 1821724972, a Type 2 (organization) record in the CMS NPPES registry.
Who is the authorized official for Los Altos Neurology?
NPPES lists Anton Ostashko (President) as the authorized official for this organization.

Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2022-10-01.