About Us

At Colorado Dermatology Specialists, we pride ourselves on our personalized care. We are consistently voted among Denver's leading Dermatologists in the "Top Docs" issue of 5280 Magazine. Our staff will answer your questions and make your appointments at the office of your choice. We look forward to caring for you. It is our pleasure our introduce you to two new members of our care team- Dr. Elizabeth Robinson and Dr. Daniel Callaghan. You can read Dr Lemons introduction letter here.

Dr. Meg Lemon

was born and raised in Denver. She graduated Phi Beta Kappa from the University of Colorado at Boulder with a BA in English Literature. She attended the University of Colorado School of Medicine and graduated with Honors in 1991. She completed residencies in both Internal Medicine and Dermatology at UCHSC. Dr. Lemon joined Colorado Dermatology Specialists in 1997. Her interests include Pediatric Dermatology, cutaneous malignancies, and diseases of the skin. She is board certified by the American Board of Dermatology, a Fellow of the American Academy of Dermatology, and a member of the Society for Pediatric Dermatology.

5280 Top Docs Dr. Lemon was honored with "5280’s Top Dermatologist" this year…for the 17th year in a row.

Dr. Milton "Jim" Schleve

has a B.S. in Math from the South Dakota School of Mines. He received his M.D. degree from the University of South Dakota School of Medicine in 1978. He trained in Dermatology at Brooke Army Medical Center in Texas and trained in Mohs Micrographic Surgery in Louisville, Kentucky. He served at Fitzsimons Army Medical Center until its closing. He has a clinical teaching position at The Denver Veteran Affairs Hospital. He is Board Certified by the American Board of Dermatology and a Fellow of the American Academy of Dermatology. Dr. Schleve is also a Fellow of the American College of Mohs Surgeons.

Dr. Ann Leibold

graduated Alpha Omega Alpha from the Medical College of Wisconsin and completed Dermatology and Pediatrics residencies at Fitzsimons Army Medical Center. She served on active duty at Ft. Hood first as a Pediatrician and subsequently as the Chief of the Dermatology Service. Upon discharge from the military, she took a position as a Clinical Assistant Professor at Washington University School of Medicine where she treated the complex patients referred to the university and enjoyed teaching the residents and medical students. In 2001, she moved to Denver and has pursued her interest in all facets of dermatology in the private practice setting.

Dr. Leibold is board certified and a Fellow of the American Academy of Dermatology. She has given presentations at the American Academy of Dermatology meetings and has authored several medical publications. She enjoys skiing, golfing, hiking and travelling with her two children and her husband, Dr. Robert Leibold.

Dr. Daniel Callaghan

graduated from Boston College cum laude and received his M.D. from Georgetown University, where he was elected to the Alpha Omega Alpha Honor Medical Society for being at the top of his class. He completed his dermatology residency at Boston Medical Center where he was one of 10 residents from across the country selected to present his research at the 'Resident of Distinction Award' program.

Following residency, Dr. Callaghan stayed in Boston to complete a prestigious fellowship at SkinCare Physicians, which is widely regarded as one of the top dermatology practices in the country. In fellowship Dr. Callaghan received advanced training in Mohs Micrographic Surgery, cosmetic dermatology and laser procedures from faculty with teaching appointments at Harvard, Brown and Yale. This fellowship program is one of only a few in the country that is accredited for training in Mohs Micrographic Surgery through the American College of Mohs Surgery, as well as for training in Cosmetic Dermatology through the American Society for Dermatologic Surgery.

Dr. Callaghan has published over 15 articles and textbook chapters and has lectured nationally and internationally with a focus on skin cancer surgery and cosmetic dermatology.

Dr. Callaghan will be joining our practice in September 2019 and is thrilled to be joining Colorado Dermatology Specialists and looks forward to getting to know you while providing you with comprehensive care.

Dr. Elizabeth Robinson

Dr. Elizabeth Robinson graduated summa cum laude from the University of Pennsylvania. She completed medical school at Columbia University’s College of Physicians and Surgeons and her dermatology residency at George Washington University, where she served as chief resident. In Washington DC she was engaged in patient advocacy and health policy on Capitol Hill and at the Milken Institute School of Public Health. She also spent one year conducting dermatology research on autoimmune diseases at the University of Pennsylvania. She is a Board Certified Dermatologist.

Dr. Robinson has numerous publications in peer-reviewed journals on a variety of topics including autoimmune diseases and cannabinoids in dermatology. She has presented at national conferences and has won multiple awards including the Rising Derm Stars award and the Everett C. Fox memorial award from the American Academy of Dermatology. She serves on boards and tasks forces for the American Academy of Dermatology and helps with resident education.

Dr. Robinson practices general, surgical, pediatric, and cosmetic dermatology. She has expertise in skin cancer prevention and treatment, hair loss, acne, eczema, psoriasis, hyperhidrosis, and hidradenitis suppurativa. She loves dermatology because she enjoys treating patients of all ages and using medical, surgical, and cosmetic therapies to enable patients feel and look their healthiest. She is delighted to be back in her native Denver with her husband and two children. Dr. Robinson will begin seeing patients in September 2019.

Alison Collier, NP

is a Denver native, attending East High School and receiving her Bachelor of Science degree in nursing at the University of Colorado. She received her Master of Science degree in nursing at Columbia University in New York. Alison completed a two-year full-time dermatology training program at a very busy practice in NYC. This program included medical dermatology, cosmetic dermatology, and Mohs surgical assisting. She is a member of the American Association of Nurse Practitioners, the Dermatology Nurses' Association, and the Affiliate of Society of Dermatology Physician Assistants. We are thrilled to welcome Alison back to her home state of Colorado! In her spare time, Alison enjoys traveling, hiking, and spending time with friends and family.

Head Team Dermatologists for the Denver Nuggets


Ray of Hope   Ray of Hope
National Psoriasis Foundation   National Psoriasis Foundation
Dermatology Foundation   Dermatology Foundation
Harm Reduction Action Center    Harm Reduction Action Center