Active NPI
Los Altos Surgery Center LLC
- Ambulatory Surgical Clinic/Center
- Los Altos, CA
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Ambulatory Surgical Clinic/Center
- Legal business name
- LOS ALTOS SURGERY CENTER LLC
- Practice address
- 795 Altos Oaks Dr
Los Altos, CA 94024-5428 - Phone
- (650) 209-5894
- Fax
- (650) 209-1110
- NPI assigned
- Aug 26, 2006
- Organization subpart
- No
NPPES NPI Registry
Registry information is reported by the provider to CMS and is not verified. About this source
Authorized official
- Name
- Ms. Barbara Lee Roth, REGISTERED NURSE
- Title
- Vice President
- Phone
- (408) 761-5847
Specialties & licenses 3
| Specialty (taxonomy) | Code | License | State | Primary |
|---|---|---|---|---|
| Clinic/Center | 261Q00000X | |||
| Ambulatory Surgical Clinic/Center | 261QA1903X | 220000309 | CA | |
| Ambulatory Surgical Clinic/Center | 261QA1903X | Primary |
Addresses
Primary practice location
795 Altos Oaks Dr
Los Altos, CA 94024-5428
Mailing address
1871 Martin Ave
Santa Clara, CA 95050-2501
Phone (650) 941-8888
Other practice location 1
1154 N Euclid St
Anaheim, CA 92801-1955
Phone (408) 761-5847
Other practice location 2
14642 Newport Ave Ste 100
Tustin, CA 92780-6058
Phone (657) 505-1515
Electronic endpoints 1
| Type | Endpoint | Use | Affiliation |
|---|---|---|---|
| Direct Messaging Address | barb@baasc.com | Direct |
Medicare participation
Medicare enrollment files- Medicare fee-for-service enrollment
- Enrolled in CA
Enrollment records 3
| Enrollment ID | State | Provider type | PAC ID | Details |
|---|---|---|---|---|
| O20040827000584 | CA | Part B Supplier - Ambulatory Surgical Center | 7911972526 | Practice locations: Los Altos, CA |
| O20230503000363 | CA | Part B Supplier - Ambulatory Surgical Center | 7911972526 | Practice locations: Anaheim, CA |
| O20240111000332 | CA | Part B Supplier - Ambulatory Surgical Center | 7911972526 | Practice locations: Tustin, CA |
Ambulatory surgical center certification: CCN 55C0001162
Name & address match This certification has no NPI in the Medicare enrollment files. CMS publishes enrollment files for six facility types only, so it was connected to this NPI by matching the name and address CMS publishes for it.
- Legal name
- Los Altos Surgery Center
- Certification status
- Active
- Provider type (POS)
- Ambulatory surgical center
- Participating since
- Apr 2, 2024
- Last certification
- Feb 21, 2024
- Ownership / control type
- Proprietary
- Facility address
- 1154 N Euclid St
Anaheim, CA 92801
Ambulatory surgical center certification: CCN 55C0001174
Name & address match This certification has no NPI in the Medicare enrollment files. CMS publishes enrollment files for six facility types only, so it was connected to this NPI by matching the name and address CMS publishes for it.
- Legal name
- Los Altos Surgery Center, LLC
- Certification status
- Active
- Provider type (POS)
- Ambulatory surgical center
- Participating since
- Dec 1, 2024
- Last certification
- Nov 13, 2024
- Facility address
- 14642 Newport Ave, Suite 100
Tustin, CA 92780
Care Compare: Ambulatory surgical center
Medicare Care Compare- Listed as
- Los Altos Surgery Center
- Medicare certification status
- Active
Laboratory certificates & supplier records
Derived by NPIMapThese CMS records do not include an NPI. They are shown because their name and street address match this provider’s.
CLIA laboratory certificates
| CLIA number | Laboratory | Certificate | Expires |
|---|---|---|---|
| 05D2032154 | Los Altos Surgery Center | Certificate of waiver | Nov 3, 2027 |
| 05D2296146 | Los Altos Surgery Center LLC | Certificate of waiver | Dec 20, 2027 |
National Provider Directory
National Provider DirectoryLocations
795 Altos Oaks Dr
Los Altos, CA 94024
Phone (650) 209-1100
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1156550400000",
"enumeration_type": "NPI-2",
"last_updated_epoch": "1750723200000",
"number": "1427166990",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "1871 MARTIN AVE",
"city": "SANTA CLARA",
"state": "CA",
"postal_code": "950502501",
"telephone_number": "650-941-8888",
"fax_number": "650-209-1110"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "795 ALTOS OAKS DR",
"city": "LOS ALTOS",
"state": "CA",
"postal_code": "940245428",
"telephone_number": "650-209-5894",
"fax_number": "650-209-1110"
}
],
"practiceLocations": [
{
"address_1": "1154 N Euclid St",
"address_purpose": "LOCATION",
"city": "Anaheim",
"state": "CA",
"postal_code": "928011955",
"country_code": "US",
"telephone_number": "408-761-5847",
"country_name": "United States",
"address_type": "DOM"
},
{
"address_1": "14642 Newport Ave Ste 100",
"address_purpose": "LOCATION",
"city": "Tustin",
"state": "CA",
"postal_code": "927806058",
"country_code": "US",
"telephone_number": "657-505-1515",
"country_name": "United States",
"address_type": "DOM"
}
],
"basic": {
"organization_name": "LOS ALTOS SURGERY CENTER LLC",
"organizational_subpart": "NO",
"enumeration_date": "2006-08-26",
"last_updated": "2025-06-24",
"certification_date": "2025-06-24",
"status": "A",
"authorized_official_last_name": "ROTH",
"authorized_official_first_name": "BARBARA",
"authorized_official_middle_name": "LEE",
"authorized_official_title_or_position": "VICE PRESIDENT",
"authorized_official_telephone_number": "408-761-5847",
"authorized_official_name_prefix": "Ms.",
"authorized_official_credential": "REGISTERED NURSE"
},
"taxonomies": [
{
"code": "261Q00000X",
"taxonomy_group": "",
"desc": "Clinic/Center",
"state": null,
"license": null,
"primary": false
},
{
"code": "261QA1903X",
"taxonomy_group": "",
"desc": "Clinic/Center, Ambulatory Surgical",
"state": "CA",
"license": "220000309",
"primary": false
},
{
"code": "261QA1903X",
"taxonomy_group": "",
"desc": "Clinic/Center, Ambulatory Surgical",
"state": null,
"license": null,
"primary": true
}
],
"identifiers": [],
"endpoints": [
{
"endpointType": "DIRECT",
"endpointTypeDescription": "Direct Messaging Address",
"endpoint": "barb@baasc.com",
"affiliation": "N",
"endpointDescription": "barb@baasc.com",
"use": "DIRECT",
"useDescription": "Direct",
"contentType": "CSV",
"contentTypeDescription": "CSV",
"address_1": "1154 N Euclid St",
"city": "Anaheim",
"state": "CA",
"country_code": "US",
"postal_code": "928011955",
"country_name": "United States",
"address_type": "DOM"
}
],
"other_names": []
}
Other providers in Los Altos, CA
Sources for this page
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jun 24, 2025; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
- Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments; facility enrollments, owners and changes of ownership; Provider of Services certification data.
- Medicare Care Compare (CMS): clinician profile, group practices, facility affiliations, MIPS scores and star ratings.
- National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.