Our Physicians + Staff

The expert dermatologists at Portland Dermatology are committed to long-term skin care health. Our inviting office houses a wealth of medical knowledge - with an emphasis on compassion.

Ken K. Lee, MD, PC

Ken K. Lee, MD, PC

Dr. Ken K. Lee specializes in all aspects of dermatologic surgery with a special emphasis on Mohs Micrographic Surgery (a precise technique to remove skin cancers), reconstructive surgery, laser and cosmetic surgery.  He joined Portland Dermatology Clinic in 2010 after serving 12 years on the faculty at Oregon Health and Science University.  During his tenure, he was the Director of Dermatologic Surgery and Associate Professor in the Departments of Dermatology, Surgery, and Otolaryngology/Head & Neck Surgery.  Dr. Lee received his undergraduate degree from Johns Hopkins University and medical degree from Cornell University.  He completed an internal medicine residency at Stanford University followed by dermatology residency and advanced dermatologic and Mohs Surgery fellowship at Oregon Health and Science University.

Dr. Lee is widely recognized for his expertise on skin cancer, cosmetic, and dermatologic surgery, having presented over 100 lectures at national and international conferences.   A renowned researcher, Dr. Lee was the principle investigator of a cancer research project awarded by the National Cancer Institute/National Institute of Health. Dr. Lee was also was a member of both research projects that led to the FDA approval of BOTOX® and Dysport®.

Dr. Lee has held leadership positions in many organizations including serving on the Boards of Directors for the prestigious organizations American Society for Dermatologic Surgery, American College of Mohs Surgery, and the Association of Academic Dermatologic Surgeons.  He is the principle author of the textbook Color Atlas of Cutaneous Excisions and Repairs and has written numerous research articles and book chapters.  He frequently appears in regional and national media and has been featured as the laser expert in ELLE Magazine.


Mohs micrographic surgery is a specialized surgical procedure used to treat skin cancers, typically of the head and neck. Recurrent or more advanced tumors of the rest of the body are sometimes treated with Mohs surgery as well. The technique offers two main advantages over traditional skin cancer removal treatments:

  • The best cure rate. Mohs surgery for primary basal cell carcinoma, for example, has a 98% cure rate.
  • Tissue sparing. Because Mohs surgery is a tissue sparing surgery, where only the skin with tumor in it is removed, the patient is left with the smallest defect possible. Smaller defects mean smaller scars in the end, after the defect is closed. In traditional excisions, the edges are not checked in "real-time" so safety margins are necessary. This often leads to larger defects and eventually larger scars. On the face, even a couple of millimeters difference in a scar length can make a big cosmetic difference. (See below for more about scars.)

Mohs surgery involves a same-day procedure where an initial "layer" is taken (the clinical tumor) and examined under the microscope for any involvement of the edges while the patient waits. The tissue is mapped in such a way so that if there is tumor at any one edge, the surgeon knows exactly which edge this is and can go back to take another small piece of skin from this edge only (instead of another whole circle around the defect, leaving a larger defect than necessary).

Our Physicians

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Regular Office Hours are Mon-Fri, 7:00am - 5:00pm, call or request online.

Dr Lee's practice is limited to provider referred patients with skin cancers needing surgery.  His cosmetic practice is closed to new patients.