Meet the Providers

We are grateful for the opportunity to care for you and your family. Thank you for entrusting us with your medical care.

Hear from our medical providers and patients about what makes us unique.

David Archibald, MD

David Archibald, MD

Double Board Certified:
Facial Plastic & Reconstructive Surgery
Otolaryngology-Head & Neck Surgery

Dr. David Archibald is a highly specialized facial plastic surgeon with six years of surgical training exclusively on the face, head, and neck. He completed medical school and his otolaryngology residency at the Mayo Clinic in Rochester, MN.

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Dr. Archibald also completed a fellowship in facial plastics and reconstructive surgery in Tampa, FL. He has held academic appointments as an instructor of otolaryngology-head and neck surgery at the Mayo Clinic and University of South Florida.

Dr. Archibald's double board certification has provided him with a unique understanding of the anatomy and aesthetics of the face. His expertise includes skin cancer reconstruction; head and neck cancer surgery; face, neck and eyelid rejuvenation; lesion removal on the head and neck, including in pediatric patients; and nasal obstruction.

"The best interest of the patient is the only interest to be considered."

When he is not in the office or the operating room, Dr. Archibald enjoys spending time in the outdoors with his wife and four children, crossing more national parks off their list. His preferred mode of transportation up a hill is on his bike, and down a hill on skis.


Vinh Chung, MD

Vinh Chung, MD

Board-Certified Dermatologist
Fellowship-Trained Mohs Surgeon

Dr. Vinh Chung specializes in the diagnosis and treatment of skin cancer. He completed his BA in biology at Harvard University, graduating magna cum laude, and earned his medical degree at Harvard Medical School.

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During his medical studies, Dr. Chung studied at the University of Sydney as a Fulbright Scholar. In addition, he earned a master of theology from the University of Edinburgh in Scotland.

Dr. Chung is a recipient of the Theodore Tromovitch Award, awarded to 1-2 Mohs fellows annually by the American College of Mohs Surgery. His research has been published in leading national medical publications, and he received the Young Investigator’s Award from the American Society for Dermatologic Surgery. Colorado Springs Style magazine named him “Top Doc” in 2011, 2012, 2013, 2014, 2015, and 2016.

"I feel a deep sense of privilege that I am able to care for my wonderful patients every day."

Dr. Chung grew up in Fort Smith, Arkansas as one of 11 children. His memoir, Where the Wind Leads, is available on amazon.com, bn.com, and at major bookstores. He currently serves on the board of directors for World Vision US. He is happily married to his high school sweetheart, Leisle, and together they have four children.


Rachel Frederickson, PA-C

Rachel Frederickson, PA-C

Dermatology Physician Assistant

Rachel Frederickson has practiced dermatology for over 10 years. She has a special interest in skin cancer, acne, and eczema.

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Rachel grew up in suburban Chicago and obtained her BSc degree from the University of Illinois in cell biology and anatomy. She graduated magna cum laude in Physician Assistant Studies from Midwestern University.

Rachel practiced dermatology in the Chicago area for 8 years before following her dream of moving to the beautiful state of Colorado. She is a fellow member of the Society of Dermatology Physician Assistants and the American Academy of Physician Assistants.

"I enjoy seeing patients of all ages and taking care of the entire family. It has been a blessing to work with the great staff at Vanguard and to get to know my patients."

Rachel enjoys traveling, photography, knitting, and discovering nature with her husband and two sons.


Shea Kersh, PA-C

Shea Kersh, PA-C

Dermatology Physician Assistant

Shea Kersh is a physician assistant with 10 years of dermatology experience and treats a range of medical dermatology conditions.

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After growing up in East Texas and graduating from Texas A&M University with a BS in Biomedical Science, Shea earned a Master of Physician Assistant Studies from Texas Tech University.

Shea has extensive dermatology experience and loves getting to know her patients and their families. She is a fellow member of the Society of Dermatology Physician Assistants and the American Academy of Physician Assistants.

"I care about my patients like they are my own family and strive to provide the best care possible."

Shea enjoys traveling and spending time outdoors.


Michael Leslie, MD, PhD

Michael Leslie, MD, PhD

Board-Certified Dermatologist and Dermatopathologist

Dr. Michael Leslie is a board-certified dermatologist and dermatopathologist. He has interests in skin cancer, general dermatology, complex skin conditions, and dermatopathology.

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Dr. Leslie grew up in Kansas City, MO and graduated from the University of Missouri with a BS in biology (with honors) and a BA in geography. He then earned a PhD focusing on melanoma research from M.D. Anderson Cancer Center.

After finishing his PhD, Dr. Leslie attended medical school at the University of Texas at Houston, graduating with Alpha Omega honors. He completed his dermatology residency at the University of Texas at Houston and his dermatopathology fellowship from University of Texas Medical Branch in Galveston.

"I value taking care of patients and listening to their concerns, so we can provide the best care possible."

Dr. Leslie lives in Colorado Springs with his wife and two daughters. He is accepting new patients at the Briargate and Broadmoor offices.


Renata Prado Oliveira, MD

Renata Prado Oliveira, MD

Board-Certified Dermatologist
Fellowship-Trained Mohs Surgeon

Dr. Renata Prado is a board-certified dermatologist and a fellowship-trained Mohs surgeon. She has extensive experience in the diagnosis and treatment of skin cancer.

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Dr. Prado grew up in Brazil where she completed her MD. She pursued a post doc research fellowship in dermatology at Northwestern University Feinberg School of Medicine and at UC Denver School of Medicine. Dr. Prado remained at UC Denver for both her dermatology residency and Mohs fellowship. Dr. Prado has been in practice since 2012 in the Boston area, and she is happy to return to Colorado.

"I feel so honored to be able to treat patients and to get to know them better. It is such a privilege to work in a field where you can spend time with amazing people and cure their skin cancer. I am committed to excellence in patient care, and I want each patient to feel well taken care of."

Dr. Prado sees patients at the Colorado Springs North and South offices. She is accepting new patients for concerning lesions, skin exams, and skin cancer treatment.


Emily Reynolds, FNP-BC

Emily Reynolds, FNP-BC

Dermatology Nurse Practitioner

Emily Reynolds, FNP-BC, is a dermatology Nurse Practitioner. She treats a range of medical dermatology conditions.

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Emily graduated Furman University with a Bachelor of Arts in Psychology and German, and then she worked in Afghanistan in public health. She completed her Masters of Science in Nursing from the University of Massachusetts in 2010. Emily practiced family medicine for four years, prior to completing a rigorous two-year Nurse Practitioner Dermatology Fellowship at Lahey Hospital and Medical Center.

"My goal is to offer excellent patient care with a holistic and empathetic approach. Skin findings often provide clues to internal diseases. My approach not only addresses dermatological treatments but also seeks to understand how dermatology relates to patients' overall health. I'm grateful to work in a field in which I can make a positive impact on patients' lives."

In her spare time, Emily enjoys competitive cycling and spending time with her husband.

Emily is accepting new patients in Vanguard’s Broadmoor and Woodland Park offices.


Tonya Sook, ARNP-C, FNP

Tonya Sook, ARNP-C, FNP

Advanced Practice Nurse Practitioner

Tonya Sook sees patients in Vanguard's Colorado Springs offices and at Clara MediSpa. Since 2009, she has worked in both dermatology and plastic surgery practices. She has advanced training in both medical and cosmetic dermatology.

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Tonya is well versed in skin care and cosmetic treatments to include a wide range of skin rejuvenation treatments.

Tonya graduated summa cum laude from Bethel College in 1997 with her BSc in nursing. She then spent the next 13 years in wound care, ICU, NICU, and labor and delivery. Tonya received her nurse practitioner certification and master’s degree from Wichita State University in 2009.

"I am well aware of the many challenges women and men face with body changes and image, and I am empathetic to your concerns."

Tonya lives in Colorado Springs with her husband, her son, and her daughter. She enjoys cooking, gardening, and hiking with her family.


Megan Stimpson, PA-C

Megan Stimpson, PA-C

Dermatology Physician Assistant

Megan Stimpson, PA-C practiced dermatology for 8 years in Tennessee prior to joining Vanguard. She enjoys taking care of children and adults for their dermatology needs.

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Megan graduated from the University of Georgia cum laude with a B.Sc. in Environmental Health. She completed her M.Sc. in Physician Assistant Studies at the Medical University of South Carolina. She is a member of the Society of Dermatology Physician Assistants and American Academy of Physician Assistants.

When Megan is not working, she enjoys running, traveling, and spending time with her husband and two children.

Clara MediSpa

Aesthetic Medicine

Brought to you by the founders of Vanguard Skin Specialists.