Founder & Medical Director

Samuel Ko, MD, FACEP

sam ko md

Dr. Samuel Ko is a Board Certified Emergency Physician and medical director of Reset Ketamine. He is a Fellow of the American College of Emergency Physicians and member of the American Society of Ketamine Physicians.

Dr. Ko received a Bachelor of Science from Seattle University and went on to graduate from the joint MD/MBA program from the University of Rochester in New York. The University of Rochester School of Medicine & Dentistry is where the biopsychosocial model of medicine was founded. He completed his residency training at Loma Linda University Medical Center, where the mission is “To Make Man Whole.”   This means Dr. Ko takes a holistic approach to ketamine infusions, including the biology, psychology, sociology, and spirituality of our patients.

Using his unique training, Dr. Ko is committed to improving the lives of patients. In addition to his medical practice, Dr. Ko is Assistant Professor of Emergency Medicine at Loma Linda University and attending ER doctor in the Inland Empire. During his free time, he practices yoga, Brazilian jiu jitsu, reads voraciously, and travels globally with his amazing wife.


Brandie ONeil, LVN


Brandie ONeill is a nurse with over 15 years experience in Emergency Medicine.  From surgery to pediatrics, Brandie has worked in a wide range of medical situations, instilling qualities such as adaptability, compassion, and intuition in her skill set.

She is ACLS, BLS, PALS, IV, and phlebotomy certified. Brandie graduated with honors, obtaining her LVN, from Summit Career College in 2002 where she was both class speaker & secretary.

Her many years of nursing experience have provided her with a very rounded skill set and a love of people. Her genuine care for patients can be felt through the excellent care she provides. This is a big part of what helps her create a supportive, transformational experience for patients at Reset Ketamine.  

With her heart for adventure, Brandie loves the idea of traveling the world with her family to experience more beyond what she has seen.


Debra Fisher, RN

Debra Fisher

Debra Fisher is a registered nurse with over 13 years of experience. Ms. Fisher has a wide range of health experience in various capacities such as hospice, hospital, and ER settings. She graduated from Mt. San Jacinto Community College in 2011 with an associate of science in nursing.

Not only working with patients, Ms. Fisher believes in educating and counseling caregivers as well so they make informed decisions regarding their loved ones’ health. She has worked with patients with chronic and acute health problems, such as critical heart conditions and airway issues. An advocate for patients, her kindness can be felt in the quality care she provides.

Ms. Fisher is excited to bring her leadership skills and compassionate spirit to Reset Ketamine. She lends her expertise in chronic pain and disease management to the Reset Ketamine team. A natural extrovert, her passions include getting to know new people and helping the less fortunate. In her free time, she loves to care for horses on her ranch and spend time in Nature.


Carmen Reyes Robinson, RN, BSN


Carmen is a registered nurse with over 20 years of medical experience. She attended College of the Desert in Palm Desert, CA and earned her Bachelor of Science (BSN) in nursing from New Haven University in 2009.

Her nursing experience is varied, including work in pediatrics, geriatrics, and home health. With 16 years of ER experience, Carmen has a strong background in emergency care which has honed her skill of handling stressful situations with strength and grace.

Her compassionate heart and expertise has created a special place for her at Reset Ketamine. A natural listener, Carmen believes there is much to be learned from taking time to earnestly listen to others, especially patients. To Carmen, being present is one of the best “presents” you can give! In her free time, Carmen enjoys music, poetry and dancing. She loves to travel to new places, spend time with her family, and appreciate the beauty of nature.

Patient Liaison & Secretary

Tangerine Catacleesi

Tangerine Reset Ketamine Palm Springs

Tangerine Catacleesi is the patient liaison and secretary at Reset Ketamine. Tangerine graduated High Honors with an Associate of Arts (AA) in Psychology at College of the Desert in Palm Desert, CA.

A Phi Theta Kappa Honor Society member, Tangerine is dedicated to pursuing excellence in all areas of academia. She is planning on pursuing a Bachelor’s degree in Psychology. Understanding the importance of giving back to the community, Tangerine volunteers as an intern at the Tolerance Education Center in Rancho Mirage, CA. Working to educate and promote understanding of the Holocaust, acceptance and education is of great importance to her.

Tangerine assists Dr. Ko at Reset Ketamine using varied knowledge and experience, from clerical work to outstanding customer service. She has first-hand experience with the remarkable outcomes at Reset Ketamine and is excited to be a part of Dr. Ko and his staff. Tangerine enjoys photography, making art, reading, and activism that benefits marginalized communities.

Patient Liaison & Secretary

Kathryn Chan

kat chan reset

Kathryn Chan is patient liaison and secretary at Reset Ketamine. She is a National Honor Society member and has attended Pacific Union College in northern California as well as Walla Walla University in Washington. She is currently enrolled at La Sierra University in Riverside, CA.

Ms. Chan’s varied experiences have created a distinct skill set she utilizes to assist Dr. Ko and ensure patients have a comfortable experience. She has been a copy editor, vocal performance artist, actress, teacher’s assistant, sales associate, and child care provider. She is Chief Creative Director at Interstellar Comic Books and Collectibles.  Currently, she volunteers by educating and entertaining young children at Palm Springs Seventh-day Adventist Church.

Ms. Chan appreciates the holistic approach Dr. Ko and his medical team take when administering ketamine. She has witnessed first hand the remarkable transformations that patients are able to achieve. In her spare time, she enjoys dancing, creating music, making costumes, and traveling internationally.

current and prior affiliations