About Us

Cancer, like all disease, calls us to recognize and transform the unexamined patterns of our life so that we can reach a greater state of health. Our doctors and staff are here for you to help address illness on a deeper level. Our office will feel like a home to you, our goal is to make sure every patient feels comfortable and respected.

Our providers have undergone further training in Anthroposophic Medicine, a 100 year old system of integrative medicine practised in over 60 countries, in both hospital and outpatient clinical settings. It appreciates the entire human being in making a diagnosis and therapy. The body, soul and spirit of the patient are acknowledged as well as their unique life story. To us, the mission of Anthroposophic medicine is to “Humanize Medicine”.

Integrative Cancer Services

We focus on healing your whole body by helping you improve your lifestyle and diet, introducing therapeutic movement, finding key supportive natural remedies, and more. We know cancer is life changing and difficult, this is why we believe you should have every possible treatment option available to benefit you.

Metronomic Chemotherapy

Chemotherapy is used conventionally in the highest dose possible to quickly kill the maximum possible amount of cancer cells. In situations where the cancer is…

Healing Heat

We use the latest technology to provide whole body warming to fever temperatures in a safe medical environment. Fever is detoxifying, immune stimulating, and has…

Integrative Oncologist Consultation

It is very difficult to obtain a balanced opinion regarding complementary care from an oncologist in the United States. Usually, without knowing anything about a…

Repurposed Medications

Many generic drugs and supplements have been found to possess potent anti-cancer effects. Cancer cells feed and grow by absorbing nutrients. By blocking access to…

Hyperbaric Oxygen Therapy

We offer sessions in our hyperbaric chambers to increase the amount of oxygen in thebody. This, in turn, increases the oxygen in cancer cells, which…

Mistletoe Cancer Therapy

We view mistletoe as foundational to integratively approaching cancer treatment. When used by an experienced cancer specialist, studies have demonstrated that mistletoe improves patient outcomes,…

We are Pioneers In the Services We Offer

In Europe, integrative medicine is much more of the norm. Mistletoe is used by more than 75% of people who have cancer together with their other treatments. It is our mission to provide innovative, integrative options to those in the United States.

Our Team

Mark Hancock MD MPH


Mark Hancock, MD, MPH founded Humanizing Medicine in Atlanta, Georgia, together with his wife Enid, in 2015. The clinic is strongly rooted in the couple’s belief that everyone should have quality integrative healthcare options. Dr. Hancock has worked with Anthroposophic Medicine, which originally introduced mistletoe as a cancer care therapy over one hundred years ago, for his entire professional career. Dr Hancock graduated summa cum laude from Saint George’s Medical School in 2008 and was elected Chief Resident during his training at University of New Mexico Hospital. He was introduced to the advanced use of mistletoe by Dr. Maurice Orange, greatly impacting his life course. Dr. Hancock’s journey through life has been full and varied and has taken him through art, philosophy, science, and even some farm work, before ultimately landing in medicine. Read about his journey and medical philosophy at HumanizingMedicine.com.

Petra Ketterl MD

Integrative Oncologist

Petra Ketterl, MD, is a fellowship-trained Medical Oncologist, practicing since 1993. Born in southern Germany, where an anthroposophic approach to medicine is well-known, Dr. Ketterl carried these principals with her when she moved to the U.S. and attended medical school at ETSU. After graduation, residency and fellowship, she opened a private practice for Medical Oncology, which she operated for 9 years before joining Cancer Treatment Centers of America as a Medical Oncologist for 15 years, also serving as a Physician Advisor. She currently lives in East Tennessee, where she serves as an oncology consultant for Dr. Hancock at Humanizing Medicine. She met Dr. Hancock in 2017, at a symposium for Integrated Cancer Treatment, where she learned about his Mistletoe Cancer Therapy practice.

Kisa Meredith PA

Physician Assistant

Kisa is a graduate of the Duke University Physician Assistant Program where she earned her Master of Health Sciences. Born and raised in New York City, she attended the Macaulay Honors College at Brooklyn College where she obtained a BA in Children and Youth Studies. After working in mental health as a case manager for both children and adults, she realized she wanted to help expand access to healthcare as a provider. She strives to provide comprehensive, patient-centered care with the hopes of empowering individuals to take control of their wellbeing. Being of Japanese ancestry, she has had an interest in integrative practices from a young age. Kisa is greatly looking forward to advancing her training in Anthroposophic Medicine as an oncology provider. Outside of the office, she enjoys spending time with her family which include her husband Daniel, two dogs, Tako and Burt, and two cats, Porky and Stinky Pete. She also enjoys photography, drawing, pottery, swimming, eating foods from all cultures and traveling- especially to the beach!

Corinne Horan

Therapeutic Eurythmist

Therapeutic eurythmy works on the principle that every consonant and vowel has a corresponding gesture, and that these are linked with specific areas or organs of the human body. By doing specific movement sequences we one can have a specific effects on health.

Jesse Hines

Art Facilitator

Jesse Hines facilitates art therapy sessions and provides compassionate support as a patient coordinator at Humanizing Medicine. She is currently pursuing a master’s degree in art therapy with an emphasis in counseling, in addition to studying anthroposophical artistic therapy through a postgraduate therapeutic visual arts program. She lives in Avondale Estates with her husband and teenage daughter. In her free time, Jesse enjoys spending time with her family, hiking, and creating art.

Jacqueline Hancock

Medical Assistant

Jacqueline is compassionate and gentle and is always bustling around the clinic, getting everything done. Ask her about England while she is taking your vitals.

Michaela Bracone

Assistant Clinic Director

Michaela has a tender heart and a knack for accomplishing things in the world. She keeps everything running smoothly for all our patients and staff.

Enid Hancock

Clinic Director

Enid provides a number of healing services, including footbaths, compresses, external applications, and einreibung ( a type of very gentle massage with healing oils). She has extensive education in the medicinal properties of plants, and uses a variety of natural ingredients to aid the healing process, based on each patient’s individual needs. Enid’s passion for healing has always been evident – at age 6 she was already applying poultices and compresses for her siblings and friends. After studying at the Goetheanum, the world headquarters of the anthroposophical movement, and touring anthroposophic hospitals and pharmacies in Switzerland, she knew she wanted to be a part of a medical practice that combines modern and alternative treatments to best help each patient on their journey to healing. In addition to her work at Humanizing Medicine, Enid is a trained Waldorf teacher and mother to 6 lively girls.

Our Popular Articles

Our Patient Experiences

Though one patient's experience is not predictave of everyone's response to a treatment, we hope you find these as inspiring as we do.