Dr. Lowan Stewart and Dr. Ken Stewart are the founders of Santa Fe Ketamine, the very first medical group in New Mexico to provide ketamine treatment. The staff physicians of the Insight Ketamine Of Santa Fe are all Board Certified in Emergency Medicine. Emergency physicians and anesthesiologists are considered the experts in the use of ketamine. However emergency physicians have the additional expertise in the daily medical management of emergency psychiatric disorders.


Dr. Lowan Stewart, MD FAAEM
Dr. Ken Stewart, MD FACEP FAAFP
Dr. Stewart Anderson, MD FACEP
Patty Nagle, LMHC, LMT

Dr. Lowan Stewart


Dr. Stewart is Medical Advisor to Insight Ketamine. He is a board certified Emergency Physician, Fellow of the American Academy of Emergency Medicine practicing since 2003. He trained at UNM, UT Austin and OHSU in Portland. He worked for over a decade in Portland as an emergency physician, Emergency Department Chair and as an associate clinical professor. He is currently working with ketamine for mental health disorders in Oslo, Norway. His past research includes studies on the evolution of emotions and winter depression. He has also studied public health and his current research interests include using novel medications in the treatment of mood disorders.


Dr. Stewart Anderson


Dr. Anderson is a Board-certified Emergency Physician and Fellow of the American College of Emergency Physicians. He completed medical school at UTMB-Galveston in 2002 and residency training in the Emergency Department at Boston Medical Center in 2007. Since then he has worked as an EM physician on the Navajo Nation in Shiprock, NM, at Christus St. Vincent’s Regional Medical Center in Santa fe, NM, and at Tairawhiti District Hospital in Gisborne, New Zealand.

Dr. Anderson is also the founder of Santa Fe Mobile MD. Beyond the medical qualifications, Dr. Anderson has studied and pursued physical and mental wellness.

Dr. Ken Stewart


Dr. Stewart’s medical background began with combat medicine during the Vietnam war, early emergency medical services and eventually into the practice of emergency medicine for more than 25 years. He trained at the University of Washington and University of New Mexico. He is board certified in Emergency Medicine and Family Medicine as well as a Fellow of the American College of Emergency Physicians and a Fellow of the American Academy of Family Physicians. Dr. Stewart served as chief of the Department of Emergency Medicine at the Gallup Indian Medical Center where he worked for over 20 years and was instrumental developing their Trauma program. He has been a member of the New Mexico Board of Acupuncture and Oriental Medicine as a board certified acupuncturist trained in Chinese and herbal medicine. Dr. Stewart has a sub-specialty in Hyperbaric and Dive Medicine.

Carina Sofia Estrada

Carina is a graduate of the University of Miami School of Communications. She is a full-time mother and a part-time intake administrator for Insight Ketamine, as well as an independent project manager and marketing specialist. Carina worked for many years as a licensed massage therapist at medical offices and spas in Santa Fe including Ten Thousand Waves. Carina has been interested in the potentials of psychedelic therapy for over 15 years and is happy to be serving in this powerful and healing field of medicine.