Dr. Keith Gronbach, DDS

Dr. Keith Gronbach, DDS

Oral & Maxillofacial Surgery  |  
Male  |  
47 y/o

Accepting new patients

Dr. Gronbach is a Board Certified Oral and Maxillofacial Surgeon.

East Bay Oral Surgery

3799 Mt Diablo Blvd Ste 200

Lafayette, CA 94549
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Accepted insurance

  • Delta Dental
  • Dental Network of America
  • EmblemHealth
  • Guardian
  • Principal Financial Group
  • United Concordia
  • UnitedHealthCare

Learn about Dr. Gronbach

Care Philosophy

Dr. Gronbach is a Board Certified Oral and Maxillofacial Surgeon. He attended The University of California, Irvine and completed his undergraduate studies, receiving 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 the University of Michigan Health System. Dr. Gronbach joined East Bay Oral Surgery in July 2000. Dr. Gronbach believes in giving back to his profession and community. He has been an active member on the Board of Directors for the Contra Costa Dental Society since 2002, previously serving the positions of district representative, and as chair of the ethics committee. He regularly participates in the Just One and Give kids a Smile programs, aiding those less fortunate to receive badly needed dental care. Dr. Gronbach is also the on call oral surgery trauma surgeon at John Muir Health System.
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Practice Areas

  • Oral & Maxillofacial Surgery
  • Implant Dentistry

Conditions Treated

  • Dental Disorders
  • Facial Trauma
  • Impacted Teeth
  • Jaw Fracture


  • Bone Grafting

Background Check

0 Malpractice Claims

No malpractice history found for California.

0 Sanctions

No sanctions history found for the years that Healthgrades collects data.

0 Board Actions

No board actions found for the years that Healthgrades collects data.


  • UC Irvine
    Undergraduate School | Graduated
  • University of Michigan / School of Dentistry
    Medical School | Graduated
  • University of Michigan Hospitals
    Residency Hospital | Completed

Awards & Recognition

Awards & Honors

Dr. Gronbach has no awards or honors listed.

Media & Publications

Dr. Gronbach has no media or publications listed.

Languages Spoken

  • English

Memberships & Professional Affiliations

Dr. Gronbach does not have any memberships or affiliations listed. If you are Dr. Gronbach and would like to add memberships or affiliations, please update your profile.

Dr. Gronbach's Reviews

Likelihood of recommending Dr. Gronbach to family and friends
based on 4 total reviews (1 with a comment)
Dr. Gronbach's Performance
  • Trustworthiness
  • Explains condition(s) well
  • Answers Questions
  • Time well spent
Office & Staff Performance
  • Scheduling
  • Office environment
  • Staff friendliness
  • Average wait time
    10 to 15 minutes
Patient Comments (1)
in Lafayette,CA |
Dr G extracted my tooth 2 weeks ago and had very minimal pain for my second encounter with a cracked molar. Dr had a reassuring presence and I felt completely comfortable that I was in experienced ,competent hands. His assembled staff were top notch and welcoming. Thank you Dr G for your kind expertise.
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Now Accepting New Patients
Dr. Gronbach accepts 7 insurance carriers
  • Delta Dental
    Delta Dental PPO
    Delta Dental Premier
  • Dental Network of America
    Dental Network of America DPPO
  • EmblemHealth
    Dental Preferred Plus
  • Guardian
    DentalGuard Preferred
  • Principal Financial Group
    Dental PPO
  • United Concordia
    Advantage Plus PPO
    National Fee-for-Service
  • UnitedHealthCare
    United Healthcare

*Please verify this information when scheduling an appointment.

Hospitals where Dr. Gronbach has admitting privileges

John Muir Medical Center - Walnut Creek
1601 Ygnacio Valley Rd
Walnut Creek, CA 94598
View Hospital Profile