Dr. Diane Kallgren, M.D.

Dr. Diane Kallgren is board certified in Dermatology and a fellow of the American Academy of Dermatology. She graduated Phi Beta Kappa and summa cum laude from The Catholic University of America in Washington, DC, earning her Bachelor’s degree in biology. Dr. Kallgren earned her M.D. from the University of Missouri in Columbia, Missouri. Following medical school, she was an intern at Naval Hospital San Diego and then served as a General Medical Officer for four years in the U.S. Navy. Dr. Kallgren served on board the USS Jason in Hawaii and California and then was stationed at Naval Hospital, Rota, Spain. Dr. Kallgren completed her dermatology residency at the National Naval Medical Center in Bethesda, MD and then served 2 years at Portsmouth Naval Hospital, VA before departing naval service as a Commander and moving to Boulder, CO in 1994. She was a partner at another dermatology clinic in the Boulder area until February 2006 when she founded Kallgren Dermatology Clinic.

An avid runner, Dr. Kallgren also likes to bike, fly fish, hike and garden in her free time. She is married to Kevin Maguire, whom she met while they were both stationed in Spain while in the Navy. They have traveled extensively throughout Africa, South America, and Europe and have many adventures still on their bucket list.

Curriculum Vitae


Dr. Cathy Koger, D.O.

Dr. Cathy Koger is a board certified dermatologist and a fellow of the American Academy of Dermatology as well as a fellow of the American Osteopathic Board of Dermatology. Dr. Koger graduated with a BSE in Mechanical Engineering from the University of Michigan and worked as an engineer for over 6 years at Raytheon Systems Company and IBM. In 2003 she was Dr. Diane Kallgren’s running coach through the Bolder Boulder Training Club program. Dr. Kallgren’s love and enthusiasm for medicine and her patients convinced Dr. Koger to retire at an early age from engineering and pursue medical school. In 2006, prior to starting medical school, Dr. Koger was one of the first Medical Assistants at Kallgren Dermatology when Dr. Kallgren first opened her practice. Dr. Koger attended medical school at A.T. Still University in Kirksville, Missouri from 2006-2010. She was accepted into Dermatology Residency at Northeast Regional Medical Center/Cleaver Dermatology from 2010-2014. She specializes in medical dermatology, surgical dermatology, cosmetics, and pediatric dermatology.

In her spare time, Dr. Koger enjoys the outdoors, training, and racing. She has been a runner, cyclist, and triathlete for over 15 years as well as a running/triathlon coach when not in medical school. She also loves spending time with her husband and daughters.

Curriculum Vitae

Amanda LaPointe, PA-C

Amanda LaPointe has been a Board Certified Physician Assistant (PA-C) since 2007 when she graduated from Massachusetts College of Pharmacy and Health Sciences in Boston with a Master’s Degree in Physician Assistant Studies. Upon graduation, she worked at the Gastroenterology and Hepatology Clinic at Brigham and Women’s Hospital in Boston. She moved to Silicon Valley in 2009 and followed her true passion by changing specialties to dermatology.

She practiced as a dermatology PA for over 7 years at the Center for Dermatology Cosmetic and Laser Surgery with offices in Milpitas and Fremont, CA. She recently moved with her husband and cat to the beautiful state of Colorado and joined Kallgren Dermatology in February 2019. She has treated a wide variety of medical dermatological conditions. She has a deep compassion for the psychological impact that dermatological diagnoses can have and especially enjoys treating acne, eczema, psoriasis, and screening for skin cancer.

In her spare time, she enjoys improving her oil painting skills, wine tasting, and hiking with her husband.

Brooke (Myers) Cerkovnik, PA-C

Brooke (Myers) Cerkovnik has been a Board Certified Physician-Assistant (PA-C) since 2018 when she graduated with a Bachelor’s in Biology followed by a Master’s Degree in Physician Assistant Studies from Rocky Mountain College in Billings, MT. Upon graduation, she immediately began working in Dermatology where she cultivated her passion for all things skin. She loves establishing connections with patients and treating all types of dermatologic conditions. Brooke also enjoys community outreach and promoting skin cancer awareness and prevention.

Brooke recently moved to Colorado with her husband and joined Kallgren Dermatology in March 2020. In her spare time, she loves to play volleyball, is a novice foodie, and enjoys doing anything in the outdoors.

Megan Pattee PA-C

Megan Pattee has been a Board Certified Physician Assistant since 2019. She obtained her Bachelor of Science in Sports Medicine from Colorado State University in Fort Collins, CO. Following her undergraduate career, Megan spent 2 years acquiring medical experience as a CNA, as well as spent time teaching yoga where she gained great interest in a wholistic approach to overall health and wellness. These experiences led her to Oregon where she graduated from Pacific University’s Physician Assistant Program with a Master of Science in Physician Assistant Studies. Megan then specialized in dermatology immediately following PA school. 

 Megan enjoys practicing both medical and cosmetic dermatology. She loves connecting with her patients and creating a safe space where her patients feel supported through a collaborative approach to their health journey. Megan tries to incorporate a wholistic approach to healing when applicable, such as integrating diet and nutrition recommendations into the treatment plan. Outside of work, Megan enjoys practicing yoga, trail running, and spending time with her dog Pearl.