NPIMap

Organization Active NPI

William Y. to, O.D., Inc

Doing business as Lifetime Eyecare by Optical Illusions

  • Optometrist
  • San Mateo, CA
National Provider Identifier
1700448925
Registry record updated Sep 3, 2025
On this page

Key facts

NPPES NPI Registry
Primary specialty
OptometristTaxonomy code 152W00000X
Legal business name
WILLIAM Y. TO, O.D., INC
Doing business as
Lifetime Eyecare by Optical Illusions
Optical Illusions of San Jose: An Optometric Practice
Optical Illusions of San Mateo: An Optometric Practice2 more in Other names
Practice address
194 Hillsdale Shopping Center
San Mateo, CA 94403-3409
Phone
(650) 341-8080
Fax
(650) 341-8565
NPI assigned
Jul 8, 2019
Last updated
Sep 3, 2025By the provider in NPPES
Organization subpart
No

NPPES NPI Registry

Updated by the provider on Sep 3, 2025

Registry information is reported by the provider to CMS and is not verified. About this source

Authorized official

Name
Katalina Ashe Rowland Yandell, ODNPI 1871071589
Title
Chief Operations Officer
Phone
(425) 445-6120

Authorized official NPPES reports the official by name only. The link goes to the one practitioner connected to this organization with that name.

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Optometrist 152W00000X Primary

Addresses

Primary practice location

194 Hillsdale Shopping Center
San Mateo, CA 94403-3409

Mailing address

1750 Lundy Ave Unit 612899
San Jose, CA 95161-7117
Phone (408) 960-4498

Other practice location 1

9309 Glacier Hwy Ste A103
Juneau, AK 99801-9300
Phone (907) 789-3175

Other practice location 2

6000 Bollinger Canyon Rd Ste 1104
San Ramon, CA 94583-2305
Phone (925) 725-1745

Other practice location 3

377 Santana Row Ste 1115
San Jose, CA 95128-2058
Phone (408) 502-5020

Other names 5

  • Lifetime Eyecare by Optical Illusions Doing business as
  • Optical Illusions of San Jose: An Optometric Practice Doing business as
  • Optical Illusions of San Mateo: An Optometric Practice Doing business as
  • Optical Illusions of San Ramon: An Optometric Practice Doing business as
  • Optical Illusions: An Optometric Practice Doing business as

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in CA, AK2 enrollments

Enrollment records 2

Enrollment IDStateProvider typePAC IDDetails
O20191119003255 CA Part B Supplier - Clinic/Group Practice 8022440668 Receives reassigned benefits from 7 practitioners
Practice locations: San Ramon, CA; San Jose, CA; San Mateo, CA
O20211229001793 AK Part B Supplier - Clinic/Group Practice 8022440668 Receives reassigned benefits from 5 practitioners
Practice locations: Juneau, AK

National Provider Directory

National Provider Directory

Locations

9309 Glacier Hwy
Ste A103
Juneau, AK 99801
Phone (907) 789-3175

1750 Lundy Ave
Unit 612899
San Jose, CA 95161

377 Santana Row
Ste 1115
San Jose, CA 95128
Phone (408) 502-5020

194 Hillsdale Shopping Ctr
San Mateo, CA 94403
Phone (650) 341-8080

6000 Bollinger Canyon Rd
Ste 1104
San Ramon, CA 94583
Phone (925) 725-1745

Practitioners & affiliated clinicians

Practitioners 15

Individual providers connected to this organization through Medicare benefit reassignment, Care Compare group membership or National Provider Directory roles, and the practitioner matching its NPPES authorized official.

View all 15

NPI Registry JSON

The complete NPPES record for this NPI in the NPI Registry API format.

{
    "created_epoch": "1562544000000",
    "enumeration_type": "NPI-2",
    "last_updated_epoch": "1756857600000",
    "number": "1700448925",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "1750 LUNDY AVE UNIT 612899",
            "city": "SAN JOSE",
            "state": "CA",
            "postal_code": "951617117",
            "telephone_number": "408-960-4498"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "194 HILLSDALE SHOPPING CENTER",
            "city": "SAN MATEO",
            "state": "CA",
            "postal_code": "944033409",
            "telephone_number": "650-341-8080",
            "fax_number": "650-341-8565"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "9309 Glacier Hwy Ste A103",
            "address_purpose": "LOCATION",
            "city": "Juneau",
            "state": "AK",
            "postal_code": "998019300",
            "country_code": "US",
            "telephone_number": "907-789-3175",
            "fax_number": "844-903-4362",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "6000 Bollinger Canyon Rd Ste 1104",
            "address_purpose": "LOCATION",
            "city": "San Ramon",
            "state": "CA",
            "postal_code": "945832305",
            "country_code": "US",
            "telephone_number": "925-725-1745",
            "fax_number": "925-725-7922",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "377 Santana Row Ste 1115",
            "address_purpose": "LOCATION",
            "city": "San Jose",
            "state": "CA",
            "postal_code": "951282058",
            "country_code": "US",
            "telephone_number": "408-502-5020",
            "fax_number": "408-389-8261",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "organization_name": "WILLIAM Y. TO, O.D., INC",
        "organizational_subpart": "NO",
        "enumeration_date": "2019-07-08",
        "last_updated": "2025-09-03",
        "certification_date": "2025-09-03",
        "status": "A",
        "authorized_official_last_name": "YANDELL",
        "authorized_official_first_name": "KATALINA",
        "authorized_official_middle_name": "ASHE ROWLAND",
        "authorized_official_title_or_position": "CHIEF OPERATIONS OFFICER",
        "authorized_official_telephone_number": "425-445-6120",
        "authorized_official_credential": "OD"
    },
    "taxonomies": [
        {
            "code": "152W00000X",
            "taxonomy_group": "",
            "desc": "Optometrist",
            "state": null,
            "license": null,
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": [
        {
            "organization_name": "Lifetime Eyecare by Optical Illusions",
            "code": "3",
            "type": "Doing Business As"
        },
        {
            "organization_name": "Optical Illusions of San Jose: An Optometric Practice",
            "code": "3",
            "type": "Doing Business As"
        },
        {
            "organization_name": "Optical Illusions of San Mateo: An Optometric Practice",
            "code": "3",
            "type": "Doing Business As"
        },
        {
            "organization_name": "Optical Illusions of San Mateo: An Optometric Practice",
            "code": "3",
            "type": "Doing Business As"
        },
        {
            "organization_name": "Optical Illusions of San Ramon: An Optometric Practice",
            "code": "3",
            "type": "Doing Business As"
        },
        {
            "organization_name": "Optical Illusions: An Optometric Practice",
            "code": "3",
            "type": "Doing Business As"
        }
    ]
}

Other providers in San Mateo, CA

Sources for this page

  • NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Sep 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.
  • National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.