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Leonard R Bertheau, DO

Primary Location:
Address 10101 SE Main St Ste 1001
Portland, OR 97216
Specialties: Family Medicine Patient Rating: Gender: Male


Dr. Leonard Bertheau is a board certified family physician and a diabetologist. A native of the Pacific Northwest, Dr. Bertheau grew up in Vancouver, Washington and attended Washington State University. After medical school at Oklahoma State University, Dr. Bertheau completed a residency in family practice at Firelands Regional Medical Center in Sandusky, Ohio and a fellowship in diabetes care at Ohio University College of Osteopathic Medicine.

As a diabetologist, Dr. Bertheau cares for and manages treatment for diabetic patients and serves as the medical director for Adventist Medical Center’s Diabetes Center.

Dr. Bertheau lives in Vancouver with his wife and children. He loves watching his children’s sporting events in his free time.


  • Amr Osteopathic Board of Family Physicians, Family Medicine, 2007


  • Medical School

    Oklahoma State University Medical Center -Tulsa

  • Internship

    Firelands Regional Medical Center

  • Residency

    Firelands Regional Medical Center

  • Fellowship

    Ohio University College of Osteopathic Medicine


Learn more about patient ratings
  • 05/19/2019
    Rating: 5

    He is caring and really knows about my illness. I would recommend him highly to anyone!

  • 04/01/2019
    Rating: 5

    Everything was great on this office visit checkup. Had no problems what so ever. Staff was great and Doctor as well.

  • 03/26/2019
    Rating: 5

    *Dr. Bertheau takes time to listen to me and has always helped me make decisions regarding my healthcare.

  • 03/10/2019
    Rating: 5

    My husband was a patient first. He has good results with Dr. B and was impressed with his knowledge and care. We found out later while talking to my mother in law that she is also a patient of Dr B and had been very happy with him and his staff.


  • Primary Location Adventist Health Diabetes and Endocrine Center
    10101 SE Main St Ste 1001
    Portland, OR 97216
    (503) 255-3404 Map and directions