Active NPI
Anton Ostashko
- Neurology Physician
- Mountain View, CA
National Provider Identifier
1134617459
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Neurology Physician
- License
- A175602
- Practice address
- 2500 Hospital Dr Ste 4B
Mountain View, CA 94040-4110 - Phone
- (650) 492-7999
- Fax
- (650) 305-7999
- NPI assigned
- Apr 23, 2018
- Sex
- Male
- Sole proprietor
- No
NPPES NPI Registry
Registry information is reported by the provider to CMS and is not verified. About this source
Specialties & licenses 1
| Specialty (taxonomy) | Code | License | State | Primary |
|---|---|---|---|---|
| Neurology Physician | 2084N0400X | A175602 | CA | Primary |
Addresses
Primary practice location
2500 Hospital Dr Ste 4B
Mountain View, CA 94040-4110
Mailing address
2500 Hospital Dr Ste 4B
Mountain View, CA 94040-4110
Phone (650) 492-7999
Medicare participation
Medicare enrollment files- Medicare fee-for-service enrollment
- Not listed in the public Medicare enrollment file
- Eligible to order & refer
- Part B services: Yes
- Medical equipment: Yes
- Home health: Yes
- Power mobility devices: Yes
- Hospice: Yes
- Opted out of Medicare
- Yes, effective Aug 12, 2023 through Aug 12, 2027
National Provider Directory
National Provider Directory- Medicare enrollment (NPD)
- Enrolled
- Credentials
- Doctor of Medicine
State licenses
| License | State | Type | Specialty |
|---|---|---|---|
| A175602 | CA | MD | Neurology Physician |
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1524441600000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1764720000000",
"number": "1134617459",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "2500 HOSPITAL DR STE 4B",
"city": "MOUNTAIN VIEW",
"state": "CA",
"postal_code": "940404110",
"telephone_number": "650-492-7999",
"fax_number": "650-305-7999"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "2500 HOSPITAL DR STE 4B",
"city": "MOUNTAIN VIEW",
"state": "CA",
"postal_code": "940404110",
"telephone_number": "650-492-7999",
"fax_number": "650-305-7999"
}
],
"practiceLocations": [],
"basic": {
"last_name": "OSTASHKO",
"first_name": "ANTON",
"name_prefix": "Dr.",
"sole_proprietor": "NO",
"sex": "M",
"enumeration_date": "2018-04-23",
"last_updated": "2025-12-03",
"certification_date": "2025-12-03",
"status": "A"
},
"taxonomies": [
{
"code": "2084N0400X",
"taxonomy_group": "",
"desc": "Psychiatry & Neurology, Neurology",
"state": "CA",
"license": "A175602",
"primary": true
}
],
"identifiers": [],
"endpoints": [],
"other_names": []
}Other providers in Mountain View, CA
Sources for this page
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Dec 3, 2025; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
- Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments; Order and Referring; Opt Out Affidavits.
- National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.