Colorado Endocrinology belongs to a collaborative care service line, built with your specific needs in mind. Our specialized providers are ready to assist you with all your endocrine needs.


Dr. Sharmini Long
MD Endocrinologist
Dr. Sharmini Long is double board certified in Endocrinology and Obesity Medicine. As a thyroid cancer survivor herself, she personally understands how many patients feel. Dr Long treats the full spectrum of endocrine disorders and has a special interest in thyroid, pituitary and adrenal disorders. She is skilled in thyroid ultrasound and in-office ultrasound guided thyroid biopsy. Dr Long believes in working side-by- side with her patients to improve their health and educate them on how to best take care of themselves. This team approach, patient and physician, is the backbone of her practice. Her patients appreciate her warm personal demeanor and her willingness to listen. Dr Long’s interest in whole person health has led to a cohost position with the television series Lifestyle Magazine. In her free time, she enjoys the Colorado outdoors with her husband and three sons. Credentials: Medical Degree: UT Southwestern Medical, Dallas TX Internal Medicine Residency: University of Alabama, Birmingham AL Endocrinology Fellowship: University of Alabama, Birmingham AL

Dr. Joshua Long
MD Bariatric Surgeon
Dr. Josh Long is a board certified bariatric surgeon. Recognizing that surgery is not the right choice for everyone, he also obtained board certification in medical weight loss therapy. He is nationally recognized for his high quality surgical care as a bariatric surgery site reviewer and as a co-author on the national obesity algorithm. He uses good communication, team collaboration, and a patient centric focus. Because he believes in meeting every patient at their greatest point of need, he emphasizes full spectrum bariatric care. His philosophy of care is to truly invest in his patient’s best long-term outcome whether surgical, non-surgical, or a combination approach.

Dr. Nina Le
MD Endocrinologist
Dr. Nina Le is board-certified in Endocrinology, Diabetes and Metabolism. Her practice encompasses adult endocrinology and sees patients in all aspects of endocrinology including type 1 and type 2 diabetes mellitus, thyroid, parathyroid, pituitary, adrenal disorders and osteoporosis. She has extensive experience in thyroid ultrasound and bedside fine-needle biopsies after her training at The University of Pennsylvania. Dr Le’s philosophy of care focuses on taking the time to understand your health concerns and working together to develop a plan to optimize your health. She believes in providing you with the knowledge to make evidence-based treatment decisions to reach your health goals. Dr Le moved to Denver in 2017 and in her spare time has been enjoying exploring Colorado with her husband and three children. Credentials: Medical Degree: The University of Sydney, Australia; Internal Medicine Residency: Pennsylvania Hospital, Philadelphia PA; Endocrinology Fellowship: The Hospital of the University of Pennsylvania, Philadelphia PA.

Melissa VanSickel
Physician Assistant
Melissa VanSickel graduated with a Masters in Physician Assistant Studies from Rosalind Franklin University of Medicine in North Chicago, Illinois. She practiced in primary care for 8 years before joining Dr. Long and Dr. Wagh in their Endocrinology Practice. Melissa was diagnosed with type 1 diabetes in childhood and has a passion not only for the treatment and care of diabetic patients but for endocrinology in general. In her free time Melissa loves spending time with her husband and daughter. She enjoys travel and spending time in the beautiful Colorado outdoors.

Caitlin Lockhart
PA-C
Caitlin Lockhart is passionate about using her love of medicine and learning about the intricacies of the human body to educate her patients and improve their health. She enjoys building relationships with her patients and helping to guide them along their healthcare journeys. Caitlin is dedicated to collaborating with her patients during all aspects of their medical care to create a plan that optimizes a healthy lifestyle. She earned her Master of Medical Science in Physician Assistant Studies from Midwestern University in Downers Grove, Illinois. In her spare time, she enjoys playing tennis, hiking with her two huskies, skiing, reading, and travelling.
Personalized Care that Works
At Colorado Endocrinology we believe that each patient is unique. Because of this we listen to our patients, and use a team approach to determine the optimal personalized treatment. How can we help?
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