Specialist Endodontist
Near San Leandro
San Leandro patients seeking specialist endodontic care are just 30 minutes from Dr. Jason Kung's Sunnyvale office via I-880 S — with same-day emergency availability and weekend hours for added convenience.
Why San Leandro Patients Choose Dr. Kung
From San Leandro's BART corridor or Marina district, I-880 S is a direct route to our Hollenbeck Avenue office. Dr. Kung uses the Zeiss OPMI operating microscope and CBCT 3D imaging for every case, delivering a level of endodontic precision that general dentists simply cannot match.
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 San Leandro community
San Leandro is about a 35-minute drive via 880. We see San Leandro patients who are referred by general dentists in the Estudillo and Floresta Gardens areas when a case calls for a specialist's microscope and CBCT. San Leandro patients often combine the visit with errands or appointments in the South Bay since the drive is straight down 880.
Neighborhoods we see patients from
- Bay-O-Vista
- Estudillo Estates
- Floresta Gardens
- Marina Faire & Heron Bay
- Broadmoor
- Washington Manor
Why San Leandro patients come to us
- Microscope-guided retreatment
- Apicoectomy / endodontic microsurgery
- Complex molar root canal cases
- Cracked-tooth evaluation
Driving from San Leandro
From San Leandro take 880 south to 237 west, then Lawrence Expressway south and left on Hollenbeck. 32–42 minutes outside commute hours.
Treatments Available
All services are performed at our Sunnyvale office, a short drive from San Leandro.
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 San Leandro?
We're at 1565 Hollenbeck Avenue, Suite 106, Sunnyvale — about 27 miles and 30 minutes from San Leandro via I-880 S. Free on-site parking is available.
Do you offer weekend appointments for San Leandro patients?
Yes. We're open Saturday and Sunday from 8 am to 3 pm, plus Monday–Friday until 7 pm, so San Leandro patients can schedule around their work week.
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).
What should I do if I have a tooth emergency in San Leandro?
Call us immediately at (669) 234-2354. We reserve daily emergency slots and can usually see you the same day. Most San Leandro patients reach us in about 30 minutes.
Will my San Leandro dentist get a report after my visit?
Yes. We send a full clinical summary to your referring dentist after every appointment so your care team stays coordinated.
Easy access from: San Leandro BART Station · Marina Community Center · San Leandro Hospital · Davis Street BART Station · I-880 / I-238 junction
Also serving nearby communities:
Ready to Schedule?
Most San Leandro patients reach us in under 15 minutes. Same-day appointments available for dental emergencies.
1565 Hollenbeck Avenue, Suite 106, Sunnyvale, CA 94087