NPI Portal NPI Lookup & Verification

Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Los Altos Neurology

Neurology Physician in Mountain View, CA · enumerated 2022 · authorized official Anton Ostashko, President.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1821724972

Verified

See something wrong? Report a correction

Registry record

Entity type Organization (Type 2)
Legal business name Los Altos Neurology
Practice address 2500 Hospital Dr Ste 4b, Mountain View, CA, 94040
Fax (650) 305-7999
Enumeration date Jul 29, 2022
Last updated in NPPES Oct 1, 2022

Taxonomy & classification

2084N0400X Neurology Physician Allopathic & Osteopathic Physicians Primary

Authorized official

Name Anton Ostashko
Title President

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 → Validate an NPI →

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.

Providers at this address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2022-10-01.