Compassionate & Comfortable Dental Care from Our Family to Yours

Welcome to Mark R. Koenen DDS


Here at Dr. Koenen’s dental office in Danville, California, we offer a comfortable and relaxed atmosphere when treating our patients.  We will work with you to meet your oral health care needs and aesthetic desires with a comprehensive treatment plan. Dr. Koenen and his experienced staff offer dental care ranging from teeth cleanings and x-rays to tooth colored composite fillings, porcelain crowns and veneers, and implants that replace missing teeth.  Call our office at (925) 837-6318 for more information and to schedule your appointment.

Join our dental family

Happy Patients


There’s nothing we like better than receiving compliments and kind words from happy patients about our successful dental treatments, comfortable dentist office and compassionate care. We’re sure that after you visit us, you’ll agree that we’re exceptional at what we do!

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“Great dentist who gives you honest advice and has a nice office. Been coming here for a long time and highly recommend him!”
Aaron W.

“Been coming here for about ten years now. Honest good people. My kids LOVE coming here. They actually get excited when it is time to see the dentist.”
Cherelle G.

“Superb experience. Dr. Koenen provided excellent dental treatment and repair of a failing existing filling. I highly recommend him.”
Vincent N.

“Dr. Koenen and his staff are always professional and personable. I have full confidence in Dr. Koenen’s expertise and that of the hygienists, as well.”
Janine B.

Plan Your Visit


Our dental office is located in Danville, California just a stone’s throw from I-680 and the El Cerro Blvd exit. We are conveniently located in the East Bay, Tri Valley and San Francisco Bay Area. Our patients visit us from Danville, San Ramon, Alamo, Blackhawk, Lafayette, Walnut Creek, Pleasant Hill, Concord, Dublin, Pleasanton, Livermore and beyond.

Mark R Koenen DDS

520 La Gonda Way, Suite 204
Danville, CA 94526
Phone: (925) 837-6318
Email: Contact Us

Mon-Tues: 8AM – 5PM
Wed: 8AM – 6PM
Thurs: 8AM – 5:30PM