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Diane Casey, DDS

Dentist
4.9 (136 reviews) Updated Mar 16, 2026
877 W Fremont Ave Suite D3 Sunnyvale, CA 94087

About Diane Casey, DDS

Dental care is one of those services people hope to need rarely—but when they do, consistency matters. Diane Casey, DDS operates in Sunnyvale, where routine checkups and more involved procedures are part of the practice. The office sits at 877 W Fremont Ave Suite D3, a stretch of the city that blends professional spaces with the quiet rhythm of residential streets. Cleanings, fillings, and crowns are among the standard offerings, but patient feedback suggests the practice handles them with a level of precision that keeps reviews strong: 4.9 from 136 ratings.

Sunnyvale’s dental landscape includes everything from corporate chains to solo practitioners, but smaller offices often draw patients looking for direct care. This one fits that mold, with a phone line—(408) 736-3882—for scheduling or questions. No flashy promises, just the kind of place where someone might go for a persistent toothache or a long-overdue exam. The ratings imply most leave satisfied, which in dentistry is about as good an endorsement as it gets.

Finding a dentist who balances technical skill with clear communication can take time. This practice doesn’t advertise gimmicks, just the basics: exams, X-rays, and preventative care. For those mapping out their next appointment, the directions are straightforward—no freeway detours, no confusing side streets. It’s the kind of address that’s easy to miss if you’re not looking for it, tucked into a suite that shares a building with other professionals.

Dentistry isn’t a field that lends itself to excitement, but reliability counts for more. A 4.9 average doesn’t happen by accident.

This listing was last updated on March 16, 2026

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Business Hours

Business Details

Accessibility
Wheelchair accessible entrance
Wheelchair accessible parking lot
Wheelchair accessible seating
Service options
Onsite services
Language assistance
Offerings
Cosmetic dentistry
Emergency services
Pediatric care
Amenities
Restroom
Planning
Appointment required
Appointments recommended
Payments
Credit cards
Debit cards
NFC mobile payments
Parking
On-site parking