About Us


Dr. Linda Lancaster

Dr. Linda Lancaster is a Naturopathic & Homeopathic Physician. She has been in practice since 1981 and founded Light Harmonics Institute, an Energy Medicine Clinic and Educational Center based in Santa Fe, New Mexico. Her training includes Nutrition, Homeopathy, Subtle Energy Healing, Radionics, Emotional/Spiritual/Grief Counseling, Herbal Medicine, Ayurvedic and Detoxification Methods. Her health and cleansing programs have been offered to her patients for almost 40 years.

Homeopathic and natural medicine physicians prefer non-invasive treatments, which minimize the risks of harmful side effects. Health or disease comes from a complex interaction of physical, emotional, mental, dietary, genetic, environmental and lifestyle.

Every illness has an underlying cause, which could be from the environment, diet or the lifestyle of the patient. An energy medicine physician is trained to find the underlying cause of dis-ease and to support the body’s own innate ability to heal.

The original meaning of the word “doctor” is teacher. Dr Linda’s principal objective is to educate the patient and emphasize self-responsibility for health. Naturopathic and Homeopathic physicians recognize the importance of the doctor-patient relationship.

Light Harmonics Institute has been at the forefront in the current trend of the integration of medicines. In an effort to create peace in healing, Dr. Linda founded The Global Foundation for Integrative Medicines (GFIM) and is the current GFIM President.


Dr. John Sherdon

As the son of Dr. Linda Lancaster, Dr. John grew up in an environment of healthy food and natural medicines. Homeopathy, Herbs, Bach Flowers, and Organic Produce were the way of life. Because of this, it only made sense that John would eventually follow the path of Health Care and Healing. In 2003 John travelled to Sri Lanka to study with one of his mother’s masters, Prof. Dr. Anton Jayasuriya, known fondly as “Prof.” He planned to stay for one month and ended up staying six. The days were rigorous spending four hours per day in lecture and six hours in clinic—learning Acupuncture, Homeopathy, Physical Therapy, Osteopathic techniques, Bio-Medicine and seeing diseases and disorders that are usually only read about in books. The time spent in Sri Lanka was invaluable and John always says the best thing “Prof” ever taught him was how to “Be” with the patient, how to sympathize, empathize and really listen to every patient that is encountered.

In 2004, Prof. Dr. Anton Jayasuriya awarded John a Doctorate in Acupuncture. That same year, after arriving back in the USA, John enrolled in Southwest Acupuncture College, located in Santa Fe, NM. SWAC offers a wonderful Oriental Medicine program which stresses not only the importance of Traditional Chinese Medicine theory, but also offers a wealth of knowledge in Western Medicine. After four years of school John was awarded a Master of Science in Oriental Medicine and attained the recognition of Diplomate in Oriental Medicine (NCCAOM).

Because Healthcare and Healing is a life-long study, John is currently studying with Dr. Lancaster and immersing himself in Homeopathy, Bach Flowers, and Ayurveda.

Dr. John Sherdon is a practicing DOM in Santa Fe, NM and works closely with Dr. Lancaster at the office of Light Harmonics. He is also a licensed Acupuncturist in New York and makes regular visits to Manhattan. Dr. John is a member of the American Association of Acupuncture and Oriental Medicine and Open International University Homeopathic Foundation.