Alexandra Theriault, MD, FAAD


Board-Certified Dermatologist
Fellow of the American Academy of Dermatology
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Dr. Alexandra Theriault is a Board-Certified Dermatologist in Littleton and Denver, Colorado at U.S. Dermatology Partners, formerly Apex Dermatology Group.

Dr. Alexandra Theriault treats patients at U.S. Dermatology Partners Littleton and U.S. Dermatology Partners Denver, formerly Apex Dermatology Group, in Littleton and Denver, Colorado.

Dr. Alexandra Theriault graduated manga cum laude from The University of Texas at Austin. She attended medical school at The University of Texas at Houston and was selected as a member of Alpha Omega Alpha Medical Honor Society. She completed her Dermatology residency at the University of Colorado. Dr. Alexandra Theriault became board certified in Dermatology in 2000. She serves as an Assistant Clinical Professor at The University of Colorado and is currently on the teaching facility of Medical Education Resources. She also mentors medical students at the CU Health Science Center as a preceptor, and as a volunteer faculty teaching University of Colorado dermatology residents on Cosmetic Injection Techniques.

Drawn to Dermatology because it is a mentally challenging field, Dr. Alexandra Theriault finds it very rewarding to diagnose a tough case and implement promising treatment options. She especially enjoys treating autoimmune skin diseases, such as psoriasis cutaneous lupus and pemphigus. Apex Dermatology, now a part of U.S. Dermatology Partners, is involved in clinical research, enabling our patients to receive the most cutting edge treatments available.

Dr. Alexandra Theriault enjoys the personal relationships that have developed from treating families that she has been lucky enough to care for over her 16-year career. Her philosophy is to treat her patients with compassion and respect, explain the disease process, and involve her patients in the healing process.

Dr. Alexandra Theriault also finds reward in the cosmetic side of dermatology. “I believe that my background in art serves as a good foundation for performing cosmetic procedures as many of them are sculptural. We do not aim to change the patient’s appearance; rather, we are looking to enhance it.”

During her free time, Dr. Alexandra Theriault enjoys skiing, running, hiking, playing the guitar, and enjoying time with her husband and two children. In the community, she participates in free skin cancer screenings and is involved in philanthropy for children’s programs for those at risk, programs that support the Arts in Colorado, and programs that aid the homeless population in Denver.

Dr. Alexandra Theriault treats patients at U.S. Dermatology Partners Littleton and U.S. Dermatology Partners Denver, formerly Apex Dermatology Group, in Littleton and Denver, Colorado.

Clinic Locations

Apex Dermatology Denver
Apex Dermatology Denver

125 Rampart Way
Suite 220
Denver, CO 80230

(303) 261-1525

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Apex Dermatology Littleton
Apex Dermatology Littleton

1420 West Canal Court
Suite 50
Littleton, CO 80120

(303) 795-2030

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What Our Patients Say

Alexandra Theriault, MD
5 Stars  Dr. Theriault has been my dermatologist for last 2 years. She is very patient explaining the pathology of my nail issue. After two years observation, she gave me a confident answer to what happened to my nail. I believe she is professional and knowledgable on dermatology! –
Source : Healthgrades – Aug 02, 2020
Alexandra Theriault, MD
5 Stars  Dr. Theriault and her staff provided an exceptional healthcare experience?? –
Source : Healthgrades – Aug 02, 2020
Alexandra Theriault, MD
5 Stars  Dr Theriault is by far the best Dermatologist I have seen in 30 years of my being a dermatology patient. She is also kind and always has a cheery demeanor. Her assistant Deb is no less wonderful. I have referred many of my patients and family members to Dr Theriault. Every one of them has been likewise impressed. –
Source : Healthgrades – Aug 01, 2020

Services Offered By Dr. Alexandra Theriault

Insurance Plans Accepted By Dr. Alexandra Theriault

Dr. Alexandra Theriault accepts most major insurance plans. If your plan is not listed above, please contact the office to verify coverage.