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FOURTH OPTOMETRIC CARE OF CALIFORNIA
NPI 1689248874
Optometrist in Mountain View, CA

Active since May 13, 2021
495 CASTRO ST, MOUNTAIN VIEW, CA 94041(650) 967-6649(650) 967-0237 Get Directions Write a Review

NPPES record last updated: July 16, 2026. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Jul 16, 2026, May 13, 2021 (2 updates tracked since 2021).

About Fourth Optometric Care Of California NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

FOURTH OPTOMETRIC CARE OF CALIFORNIA (NPI 1689248874) is a healthcare organization registered as an optometrist in Mountain View, California and active in the NPI registry since May 2021. The organization maintains 10 additional practice locations and lists Brittany Harrison, Director, as its authorized official.

NPPES Registry Identity

NPI1689248874
Entity TypeOrganization
Primary Taxonomy152W00000X
Legal Business NameFOURTH OPTOMETRIC CARE OF CALIFORNIA
Location Address495 CASTRO STMountain View, CA 94041-2086
Mailing Address3333 Quality DrRancho Cordova, CA 95670-7985 · (916) 407-7156
Phone(650) 967-6649
Fax(650) 967-0237
Organization SubpartNo
Authorized OfficialBrittany HarrisonDirector · (512) 316-4603
Enumeration DateMay 13, 2021
Last NPPES UpdateJuly 16, 20262 updates tracked since enumeration
NPPES CertifiedJuly 16, 2026
✔ NPI 1689248874 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyOptometristEye and Vision Services Providers
Taxonomy Code152W00000X
Definition
Doctors of optometry (ODs) are the primary health care professionals for the eye. Optometrists examine, diagnose, treat, and manage diseases, injuries, and disorders of the visual system, the eye, and associated structures as well as identify related systemic conditions affecting the eye. An optometrist has completed pre-professional undergraduate education in a college or university and four years of professional education at a college of optometry, leading to the doctor of optometry (O.D.) degree. Some optometrists complete an optional residency in a specific area of practice. Optometrists are eye health care professionals state-licensed to diagnose and treat diseases and disorders of the eye and visual system.
495 CASTRO ST, Mountain View, CA 94041
Open in Google Maps ↗

Secondary Practice Locations 10

Location 15385 Walnut AveChino, CA 91710-2605 · Phone (909) 627-8523 · Fax (909) 627-5183
Location 2946 Manhattan Beach BlvdManhattan Beach, CA 90266-5120 · Phone (310) 545-4585 · Fax (310) 546-3240
Location 32653 Gateway Rd Ste 101Carlsbad, CA 92009-1758 · Phone (760) 476-1921 · Fax (760) 476-2784
Location 4648 Jenevein AveSan Bruno, CA 94066-4230 · Phone (650) 871-1816 · Fax (650) 871-0164
Location 54074 Hardwick StLakewood, CA 90712-2349 · Phone (562) 633-6443 · Fax (562) 633-6939
Location 67379 Indiana AveRiverside, CA 92504-4547 · Phone (951) 684-7822 · Fax (951) 977-8075
Location 720929 Ventura Blvd Ste 23Woodland Hills, CA 91364-3352 · Phone (818) 883-4303 · Fax (818) 883-5331
Location 8130 S Main St Ste FOrange, CA 92868-2869 · Phone (714) 939-9202 · Fax (714) 939-0356
Location 915068 Goldenwest StWestminster, CA 92683-6152 · Phone (714) 898-5631 · Fax (714) 898-4771
Location 104505 Sepulveda BlvdTorrance, CA 90505-2207 · Phone (310) 792-2020 · Fax (310) 792-2021

Group Practice 1

Group TaxonomyThis provider is a business group of one or more individual practitioners, who practice with different areas of specialization.193200000X MULTI-SPECIALTY GROUP

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Anthem Blue Cross and Blue Shield, Blue Cross and Blue Shield of Montana, Blue Cross and Blue Shield of Oklahoma and more.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment and the clinicians who bill Medicare through this organization, from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Fourth Optometric Care Of California is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

51

Medicare enrollment records show 51 clinicians reassign Medicare billing to Fourth Optometric Care Of California, which bills Medicare for the services they deliver. Of these, 6 practice at this address and 8 within 10 miles. Listed here are the 20 practicing nearest to this location.

Nearest to this location (20)

See all 51
Gina Gilson, OD
Optometry
NPI 1275373581
495 CASTRO ST
Mountain View, CA 94041
(650) 967-6649
✔ PECOSSame address
Audrey Louie, O.D.
Optometry
NPI 1548405335
495 CASTRO ST
Mountain View, CA 94041
(650) 967-6649
✔ PECOSSame address
Kenneth Schwaderer, OD
Optometry
NPI 1386610657
495 CASTRO ST MOUNTAIN VIEW OPTOMETRY & CONTACT LENS CLINIC
Mountain View, CA 94041
(650) 967-6649
✔ PECOSSame address
Ellen Szeto, OD
Optometry
NPI 1063486009
495 CASTRO ST MOUNTAIN VIEW OPTOMETRY & CONTACT LENS CLINIC
Mountain View, CA 94041
(650) 967-6649
✔ PECOSSame address
Linda Hur, OD
Optometry
NPI 1497729362
495 CASTRO STREET MOUNTAIN VIEW OPTOMETRY AND CONTACT LENS CLINIC
Mountain View, CA 94041
(650) 967-6649
✔ PECOSSame address
Elaine Ngo, O.D.
Optometry
NPI 1316469331
495 CASTRO ST
Mountain View, CA 94041
(650) 967-6649
✔ PECOSSame address
Kira Majmundar, OD
Optometry
NPI 1558080580
286 STATE ST
Los Altos, CA 94022
(650) 948-6910
✔ PECOS2.1 mi
Kathleen Shen, OD
Optometry
NPI 1336113372
286 STATE ST
Los Altos, CA 94022
(650) 948-6910
✔ PECOS2.1 mi
Christina Chapman, OD
Optometry
NPI 1255225348
1528 S EL CAMINO REAL STE 101
San Mateo, CA 94402
(650) 570-5955
✔ PECOS17 mi
Thomas Aller, O.D.
Optometry
NPI 1366431330
648 JENEVEIN AVE
San Bruno, CA 94066
(650) 871-1816
✔ PECOS24 mi
Allen Luong, OD
Optometry
NPI 1326622796
4050 DUBLIN BLVD
Dublin, CA 94568
(510) 498-2857
✔ PECOS25 mi
Jenny Lam, O.D.
Optometry
NPI 1982086401
711 KAINS AVE
San Bruno, CA 94066
(650) 871-1816
✔ PECOS25 mi
Ezah Cheema, OD
Optometry
NPI 1356814081
2704 PINOLE VALLEY RD
Pinole, CA 94564
(510) 222-6567
✔ PECOS✔ Accepts Medicare43 mi
Luann Lee, O.D.
Optometry
NPI 1144210980
7075 N SHARON AVE
Fresno, CA 93720
(559) 486-2000
✔ PECOS134 mi
Kenneth Van, OD
Optometry
NPI 1982191110
5729 NUTWOOD CIR
Simi Valley, CA 93063
(805) 587-3693
✔ PECOS287 mi
Amanda Ly, OD
Optometry
NPI 1902413495
43927 15TH ST W
Lancaster, CA 93534
(661) 948-6310
✔ PECOS288 mi
Yasmin Sanati, OD
Optometry
NPI 1699348953
6800 OWENSMOUTH AVE STE 400
Canoga Park, CA 91303
(818) 322-5704
✔ PECOS294 mi
Richard Eisenberg, O.D.
Optometry
NPI 1295823565
21835 1/2 VENTURA BLVD
Woodland Hills, CA 91364
(818) 883-9562
✔ PECOS296 mi
Matthew Alpert, O.D.
Optometry
NPI 1396765277
20929 VENTURA BLVD STE 23
Woodland Hills, CA 91364
(818) 883-4303
✔ PECOS296 mi
Trinh Pham
Optometry
NPI 1831885060
11301 WILSHIRE BLVD
Los Angeles, CA 90073
(310) 478-3711
✔ PECOS307 mi
See all 51 clinicians

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Fourth Optometric Care Of California's NPI number?

The NPI number for Fourth Optometric Care Of California is 1689248874. It was assigned to this organization in the NPPES registry on May 13, 2021.

Where is Fourth Optometric Care Of California located?

Fourth Optometric Care Of California is located at 495 Castro St, Mountain View, CA 94041. The listed phone number is (650) 967-6649.

What is Fourth Optometric Care Of California's specialty?

The primary specialty registered for this NPI is Optometrist with taxonomy code 152W00000X.

Is Fourth Optometric Care Of California enrolled in Medicare?

Yes. Fourth Optometric Care Of California is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Fourth Optometric Care Of California?

According to the CMS Revalidation Reassignment List (October 2026 release), 51 clinicians, all in Optometry, reassign their Medicare billing to Fourth Optometric Care Of California. A reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for the clinician's services. Of these, 6 practice at this address and 8 within 10 miles. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

What insurance does Fourth Optometric Care Of California accept?

Health plans from Anthem Blue Cross and Blue Shield, Blue Cross and Blue Shield of Montana, Blue Cross and Blue Shield of Oklahoma, Blue Cross and Blue Shield of Texas and BlueCross BlueShield of Tennessee list Fourth Optometric Care Of California as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for Fourth Optometric Care Of California was last updated on July 16, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.