Specialist Endodontist
Near Fremont
Fremont residents seeking specialist-level endodontic care choose Dr. Jason Kung for his precision, advanced technology, and same-day emergency availability — just 18 minutes away in Sunnyvale via CA-237 W.
Why Fremont Patients Choose Dr. Kung
From Fremont's Mission San José district or Auto Mall area, our Hollenbeck Avenue office is a straightforward drive along CA-237 W. Dr. Kung performs every procedure under the Zeiss OPMI operating microscope and uses 3D CBCT imaging for complex cases — a level of care not routinely available in general dental offices.
Microscope-Guided Precision
Every procedure performed under the Zeiss OPMI operating microscope — the standard of care for specialist endodontics.
Same-Day Emergency Care
Tooth pain can't wait. We hold appointments for urgent cases every day, including weekends.
Your Dentist Stays Informed
A detailed clinical report goes to your referring dentist after every visit — you're in good hands, and so is your care team.
Serving the Fremont community
Fremont is about 25 minutes east of our office, depending on the neighborhood and time of day. We see Fremont patients from Mission San Jose, Niles, Centerville, and Warm Springs, and we work with several Fremont general dentists who refer cases needing microscope-level precision. Many Fremont patients choose us specifically because the office is a single-specialty endodontic practice focused exclusively on root canal therapy and endodontic microsurgery.
Neighborhoods we see patients from
- Mission San Jose
- Niles
- Centerville
- Irvington
- Warm Springs / South Fremont
- Ardenwood
Why Fremont patients come to us
- Specialist root canal treatment with operating microscope
- Retreatment of previous root canals
- Apicoectomy / microsurgery
- Cracked-tooth diagnosis
Driving from Fremont
From Fremont take 880 north to 237 west, exit Lawrence Expressway south, then left on Hollenbeck. From Mission San Jose, 680 north to 237 west is similar. 22–30 minutes outside commute hours.
Treatments Available
All services are performed at our Sunnyvale office, a short drive from Fremont.
Root Canal Treatment
Single or multi-rooted teeth treated under the operating microscope for precision and comfort.
Endodontic Microsurgery
Apicoectomy when retreatment isn't feasible — performed with surgical-grade magnification and ultrasonic instrumentation.
Root Canal Retreatment
Failed or symptomatic prior root canals rescued with advanced imaging (CBCT) and microsurgical techniques.
Cracked Tooth Evaluation
Diagnosis of incomplete fractures — the most common cause of unexplained tooth pain.
Emergency Root Canal
Same-day evaluation and management of severe toothache, swelling, and dental trauma.
What Patients Say
4.9 stars across 193 reviews on Google, Yelp, and Healthgrades.
"I was terrified of root canals. Dr. Kung made it completely painless. I actually fell asleep during the procedure."
— Patient from the South Bay
"Came in with severe tooth pain on a Saturday. They saw me within the hour and I was pain-free by evening."
— Emergency patient
"The most technologically advanced dental office I've ever visited. The microscope setup is impressive."
— Referred patient
Common Questions
How far is your Sunnyvale office from Fremont?
We're located at 1565 Hollenbeck Avenue, Suite 106, Sunnyvale — about 16 miles and 18 minutes from central Fremont via CA-237 W. Free parking is available on-site.
Do you offer weekend appointments for Fremont patients?
Yes. We're open Saturday and Sunday from 8 am to 3 pm, in addition to Monday–Friday until 7 pm — so Fremont patients don't need to take a weekday off.
Is Dr. Kung a specialist endodontist?
Yes. Dr. Kung is a Specialist Endodontist who completed a full two-year graduate residency and earned his MS in Endodontics from OHSU. He is an active member of the American Association of Endodontists (AAE). His specialist credentials come from his accredited graduate residency and MS degree in Endodontics.
What if I have a dental emergency in Fremont?
Call us at (669) 234-2354. We hold emergency appointment slots every day including weekends. Most Fremont patients can reach us within 20 minutes, and we'll do our best to see you the same day.
Will my Fremont dentist receive a report after treatment?
Yes. We send a detailed clinical summary to your referring dentist after every visit so your entire care team stays coordinated.
Easy access from: Mission San José · Lake Elizabeth / Central Park · Fremont BART Station · Warm Springs Innovation District · CA-237 / I-880 junction
Also serving nearby communities:
Ready to Schedule?
Most Fremont patients reach us in under 15 minutes. Same-day appointments available for dental emergencies.
1565 Hollenbeck Avenue, Suite 106, Sunnyvale, CA 94087