Dr. Gronbach is a Board Certified Oral and Maxillofacial Surgeon. He attended The University of California, Irvine and completed his undergraduate studies, earning a Bachelor of Science degree. He then spent a total of eight years in Ann Arbor, Michigan earning his doctorate (D.D.S.) and receiving specialized training in Oral and Maxillofacial Surgery at Michigan Medicine. Dr. Gronbach joined East ... 
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  • Biopsies of the Mouth and Face
  • Bone Grafting
  • Dental Extractions And Socket Preservation
  • Dental Implants
  • Facial Trauma Surgery
  • Oral & Maxillofacial Surgery
  • Sinus Lift Bone Grafting
  • Stereotactic Radiosurgery
  • Sterilization (OSHA Compliant)
  • Surgical exposure of impacted or unerupted teeth for orthodontics
  • Teeth in-a-Day
  • Wisdom Teeth Removal, Anesthesia, Sedation And More


  • Oral Surgery
  • General Dentistry


Dental School
University Of Michigan School Of Dentistry
Graduated 1996


Explains conditions and treatments
Takes time to answer my questions
Provides follow-up as needed
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3799 Mt. Diablo Blvd. Suite 200, Lafayette, CA, 94549
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Keith R. Gronbach, D.D.S., Inc.
3799 Mt. Diablo Blvd. Suite 200
Lafayette, CA, 94549
"Simple to understand and professional service. - Dr. Gronbach made everything easy to understand, whether that’d be how the procedure would go, or what to expect rolling the operation. I felt absolutely no pain from the operation and even after it my medications have served me well. I honestly don’t think I could’ve gotten better service anywhere else."
  • March 12, 2020
  • Review from
"Efficient and Effective - I had all four of my wisdom teeth removed at the same time and it felt professional from the very first visit. The teeth was removed efficiently and now healing effectively. Would definitely recommend."
  • March 2, 2020
  • Review from
"Our experience was friendly - We had a friendly and informative experience"
  • February 27, 2020
  • Review from
"great staff, felt very safe around them. - I had a good time with the staff, they explained the surgery very well to me and I felt very safe around them. The surgery went well and so far there have been zero complications."
  • February 27, 2020
  • Review from
"Clear and Honest about diagnosis and procedures. - I knew getting my wisdom teeth out at 34 would be difficult but Dr. Gronbach, truly listened to my concerns; explained what I did not understand and was honest about any sort of complications that might arise. His staff was welcoming and equally helpful to make sure that the experience was as "painless" as possible. They even answered questions post ..."
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  • February 25, 2020
  • Review from
"wisdom teeth removal - Good experience Organized, clear instructions"
  • February 25, 2020
  • Review from
"Very helpful team - They helped to remove my wisdom teeth. The process was easy to understand with the help of the staff."
  • February 20, 2020
  • Review from
"Very positive from initial meeting thru post procedure follow up - We had a very positive experience with every member of the team. Would highly recommend this practice."
  • February 20, 2020
  • Review from
"Considering there was surgery involved, I can't imagine a better experience for my daughtere. - From the first visit to the follow up, my daughter was treated with respect and professionalism. by the entire staff. They allayed her fears, and mine, too. We left with a full understanding of what we need to do to properly care for her teeth. We highly recommend Dr. Gronbach and his staff."
  • February 18, 2020
  • Review from
"Very positive - Everyone at Dr. Gronbach's was very helpful and thorough from working with insurance to explaining expectations at the consultations and prepping for surgery. The Dr. and his staff made the entire experience easy and not at all scary or stressful."
  • February 18, 2020
  • Review from
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Please verify insurance information directly with your doctor’s office as it may change frequently.


3799 Mt. Diablo Blvd. Suite 200