Lake Oswego Dermatology Group - Team

We have four Board-Certified Physicians/Surgeons, including a Fellowship-trained Mohs micrographic surgeon, who are accepting new patients and are contracted with most major insurance carriers. Please contact your insurance to verify coverage and benefits.

Our Physicians

Andrew E. Pitt, MD

Andrew E. Pitt, MD, FAAD

College: Willamette University (1982), Salem, OR

MD: Oregon Health & Science University (1986), Portland, OR

Internship: Good Samaritan Hospital (1987), Portland, OR

Residency: Medical College of Wisconsin/Marquette University (1990), Milwaukee, WI

Medical assistant: Natalie

Helen Liu, MD, FAAD

College: University of Toronto (2004), Toronto, Ontario, Canada

MD: Stanford University School of Medicine (2009), Stanford, CA

Internship: Santa Clara Valley Medical Center (2010), San Jose, CA

Residency: Oregon Health & Science University (2013), Portland, OR

Medical assistant: Sarah

Helen Liu, MD

Bridget D. Hartman, M.D.

Bridget D. Hartman, MD, FAAD

College: Duke University (2002), Durham, NC

MD: David Geffen School of Medicine at UCLA (2010), Los Angeles, CA

Internship: Cedars Sinai Medical Center and West LA Veterans Administration (2011), Los Angeles, CA

Residency: Oregon Health & Science University (2014), Portland, OR

Fellowship: Mohs Surgery/Procedural Dermatology: Oregon Health & Science University (2015), Portland, OR

Medical assistant: Lidia

Betty S. Jiang, MD, FAAD

Dr. Jiang grew up Beaverton and attended Southridge High School, participating in track and cross country. She then left for Duke University where she received all of her education and training. After having a baby and needing all the help she could get, she and her husband moved back to Oregon to be near family. In her free time, she attempts various hobbies, most recently baking. Dr. Jiang sees adults and children with a variety of dermatologic diseases. She enjoys seeing and treating patients with skin cancer, including melanoma, squamous cell, and basal cell carcinomas.

College: Duke University (2010), Durham, NC

Masters in Clinical Research: Duke University School of Medicine (2014), Durham, NC

MD: Duke University School of Medicine (2015), Durham, NC

Internship: Duke University Health System (2016), Durham, NC

Residency: Duke University Health System (2019), Durham, NC

Medical assistant: Nichele