Our Staff

All professionals at Southern Colorado Dermatology maintain the highest levels of accreditation and pursue ongoing education to stay abreast of the latest trends in the medical field. Read on to learn more about our staff's experience and training.

Krystal Nakamura, MD

Dr. Krystal Nakamura, MD, FAAD is a Board Certified Dermatologist and a Mayo Clinic graduate.  She is a native of Pueblo, born at St. Mary Corwin Hospital; graduated from Colorado State University-Fort Collins with a Bachelors Degree in Electrical Engineering; subsequently went to Yale University for a Masters in Biomedical Engineering and then went to Tulane University and Mayo Clinic for her medical degree and residency.  She has been practicing dermatology for over 14 years.  She specializes in skin cancer exams and surgery, autoimmune diseases, general dermatology and cosmetic procedures.


Dr. Iftikhar (Ifty) Ahmed, MD

Dr. Ifty Ahmed is a board certified Dermatologist, Dermatopathologist and Anatomic Pathologist who has over 25 years of experience practicing Dermatology and Dermatopathology.  Dr. Ahmed completed his training at the University of Utah (Internship and Anatomic Pathology residency) and at the Mayo Clinic, Rochester, Minnesota (Dermatology residency).  Dr. Ahmed was an Academic Professor of Dermatology, Senior Consultant in Dermatology, Director of Dermatopathology and Co-Director of the Dermatopathology fellowship program at the Mayo Clinic, Rochester, Minnesota.  Dr. Ahmed has served on the editorial boards of the Journal of the American Academy of Dermatology, Dermatologic Surgery and International Journal of Dermatology and continues to serve on the editorial panel of the American Journal of Dermatopathology.  Dr. Ahmed is the recipient of several practice and teaching awards and has over 100 published abstracts and manuscripts to his credit.  Dr. Ahmed has delivered over 200 national and international presentations in Dermatology and Dermatopathology.  He enjoys his free time traveling, reading, fly fishing and skiing.


Karen Tweedy - Practice Manager

Karen is the Practice Manager for Southern Colorado Dermatology Clinic. She is a native of Pueblo earned an AAS Degree and has worked in the health insurance industry for over 25 years and has been with Southern Colorado Dermatology for nine years.


Yvonne Bernal - Medical Assistant

Yvonne was born and raised in Pueblo. She received her AOS degree in Medical Assisting in 2006. She has been in the medical field for 12 years and has worked for Dr. Nakamura since 2008. She is certified for the Alma Laser and our Ultherapy treatment.


Nancy Cipriani - Receptionist

Nancy is a native of Colorado. She has been working in the medical field for over 40 years, in some capacity or another, and is currently the receptionist at Southern Colorado Dermatology Clinic since 2012. Her hobbies include Zumba, toning classes, and her six grandchildren.


Kate Mara - Receptionist

Kate is a Pueblo native, she managed a Bed & Breakfast Inn for over 4 years and has 15 years in the retail automotive industry. She attended CSU-Pueblo and joined the Southern Colorado Dermatology team in summer of 2017. Kate enjoys camping, fishing, rafting and with her husband, daughter and dogs.