Meet the Dentist

Dr_Sonnes_portraitDr. Robert A. Sonnes, DDS PC

Dr. Sonnes is a periodontist originally trained back East but who fell in love with the Northwest while serving as an intern at Madigan General Hospital in Tacoma, WA. Dr. Sonnes has had a practice in Portland, OR, Longview, WA, and now makes Vancouver, WA his home. He enjoys world travel while providing dental care for indiginous people. He’s also a world-class big game fisherman.

His practice emphasizes prevention and conservative periodontal care. Contact the team today for an appointment!


  • Hunter College; BS in Chemistry
  • Temple University Dental School; DDS
  • Madigan Hospital Internship
  • NYU Graduate Periodontology

Professional Assoc. Membership

  • American Academy of Periodontology
  • American Dental Association
  • Oregon Society of Periodontists
  • Washington Society of Periodontists
  • Washington Dental Society
  • North American Society of Periodontology
  • Clark County Dental Society

Professional Association Offices

  • Past President Clark County Dental Society
  • Past President Oregon Society of Periodontists
  • Past Board of Directors Smile Savers
  • Past Board of Directors Free Clinic of Vancouver
  • Past Board of Directors Oregon Dental Service Corp.
  • Past Board of Directors Western Soc. of Periodontics
  • Past Am. Academy of Periodontics 6th District Insurance Advisor

Honorary Societies

  • Federation Dentaire Internationale
  • John A. Kolmer Honor Society
  • James R. Cameron Honor Society

University Positions

  • Clinical Associate, Periodontics, University of Oregon
  • Clinical Associate, Periodontics, NYU Dental School

Military Service

  • Dental Commander; US Army Dental Clinic; Ingrandes, France
  • Western France Regional Periodontist
  • Dental Surgeon; Valley Forge Army Hospital

Volunteer Public Service

  • Equador & Amazon Basin – Treatment of native population
  • Samoa, Western Pacifc – Instructed local dentists at L.B.J. Tropical Medical Hospital, treatment of local population
  • Cuba – Instructed Havana Dental School
  • Nicaragua – Established dental training centers
  • Honduras – Flood relief & volunteer program with the Honduras Dental Society