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About Us

Knott Street Dermatology's main office, located in NE Portland is conveniently accessible to patients throughout the Willamette Valley and Southwest Washington. Our building is listed on the National Register of Historic Places and was thoughtfully renovated to a state-of-the-art medical facility, using environmentally friendly materials and construction.

Read more about our team below.

Our Providers ◢
Clinical Staff ◢
Administrative Staff ◢

Our Providers
 A picture of Eric L. Hanson, MD.

Eric L. Hanson, MD

Dr. Eric L. Hanson earned his undergraduate degree from the University of Illinois. He received his medical degree in 1994 from Tufts University School of Medicine in Boston, MA, graduating with the distinction of Alpha Omega Alpha. He then completed a transitional internship at the Naval Medical Center in San Diego, CA, followed by a four-year military commitment with the US Navy in Groton, CT as an Undersea Medical Officer. While serving the diving and submariner community, CDR Hanson received many medals and commendations, including those honoring his service as a US Navy Diver, as well as his medical support for the Salvage Operation of TWA Flight 800 off the Long Island coast. Dr. Hanson completed his dermatology residency at the University of North Carolina at Chapel Hill where he was named Chief Resident in 2002.

Dr. Hanson is a board certified dermatologist and is actively affiliated with the American Board of Dermatology, American Academy of Dermatology, and the American Society of Mohs Surgeons.

Dr. Hanson commutes to work on foot or by bicycle. Many weekends are spent with his wife, proudly watching their son Ethan compete at swim meets, and keeping up with their daughter Jane Catherine. He enjoys playing the guitar and brewing his own beer.

 A picture of Craig Schultz, FNP.

Craig Schultz, FNP

Craig Schultz graduated from the University of North Dakota with a Bachelor of Science in Nursing, and went on to spend 5 years working in emergency departments throughout central Washington and the Portland/Vancouver area. He furthered his education by receiving his Masters in Nursing, with an emphasis in Family Medicine, from Washington State University in 2001. Craig Schultz has worked for Kaiser Permanente in Internal Medicine and Urgent Care, and as a same-day clinician at the Vancouver Clinic. He joined Knott Street Dermatology in 2007, and has had extensive training and mentorship by Dr. Eric Hanson.

Craig Schultz is a board certified member of the American Academy of Nurse Practitioners, as well as an affiliate of the Dermatology Nurses' Association.

Craig is an avid bicycle commuter, and enjoys spending his free time with his wife Michelle and their two children.

Mara Limoncelli, PA-C

Mara Limoncelli graduated from D’Youville College in Buffalo, NY with a combined Bachelors/Masters in Physician Assistant studies. She began her career working at an urgent care in Burlington, Vermont before moving to the Portland area in 2012 to join a family medicine practice. Mara had the opportunity to work alongside Dr. Hanson at an outside facility during this time, which began her interest in specializing in dermatology. She joined Knott Street Dermatology in 2016, and has had extensive training and mentorship by Dr. Hanson. Mara is board certified member of the National Commission on Certification of Physician Assistants and an affiliate of the Society of Dermatology Physician Assistants. Outside of the clinic Mara enjoys trail running, hiking, traveling and adventures with her border collie.

Charles Mauro, MD

Dr. Mauro is a board certified dermatologist that practices in Hawaii and Oregon. He works at Knott Street Dermatology as a clinical and surgical dermatologist. Dr. Mauro graduated from the Medical University of South Carolina where he was inducted into the AOA medical honor society. Next, he completed his medical internship at Stanford University. His Dermatology residency was completed in 2004 at the Oregon Health and Sciences University. Dr. Mauro has been in private practice in Hawaii since that time.

Clinical Staff
Administrative Staff
Our administrative staff perform a variety of duties such as front desk reception, scheduling, insurance verification,
bookkeeping and other tasks necessary for great patient care.

Main Office
301 NE Knott St
Portland, OR 97212

Milwaukie Office
10330 SE 32nd Ave, Ste 330
Milwaukie, OR 97222


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Knott Street Dermatology, 301 NE Knott St, Portland, OR, 97212-3014 - Related Terms: Dermatologist Portland OR; Dermatologist Portland OR; (503) 253-3910;; 4/12/2018