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2851 N. Tenaya Way,
Suite 205
Las Vegas, NV 89128
(702) 289-4974
2440 W. Horizon Ridge Pkwy,
Suite 100
Henderson, NV 89052
(702) 990-9169
As functional medicine practitioners, we employ an integrated approach to your condition. Our team includes a medical doctor, a naturopathic physician, and a chiropractic physician. Click on any of the pictures below to meet your doctors.
Doctor Jonathan Maxham, a South Carolina native transplanted to Nevada when serving in the Air Force. After his deployment to Afghanistan, he treated thousands of geriatric patients and became proficient in management of diabetes, weight loss and high blood pressure and even diagnosing sleep apnea. He believes fostering patient-physician relationship is the cornerstone and core to patient wellbeing. Outside of medicine he enjoys golfing, smoking ribs, playing with his two children and two huskies and taking his wife on dates.
"The important thing is not to stop questioning. Curiosity has its own reason for existence." - Albert Einstein
This quote emphasizes the value of curiosity and the pursuit of knowledge. It encourages continuous exploration, discovery, and learning Einstein’s quote reinforces the idea that questioning and seeking answers are essential components of personal growth and understanding the world around us.
Robert Fares is a compassionate Family Nurse Practitioner dedicated to helping patients live life to its fullest — not merely endure it. His medical journey began as a firefighter in the United States Air Force, where he learned the value of courage, discipline, and service to others. These qualities now guide his holistic and patient-centered approach to healthcare.
With over three decades of combined experience in emergency response and medicine, Robert provides comprehensive general practice care, addressing a wide range of health concerns for patients of all ages. He is also skilled in women’s health, ensuring continuity of care for the entire family.
He is extensively trained in regenerative medicine, including stem cell therapy for joint injuries and chronic conditions, bio-identical hormone replacement therapy (BHRT), and peptide therapy to restore balance, optimize performance, and promote longevity.
Robert believes that every patient deserves to be treated like family. His care philosophy is simple: to listen, to guide, and to heal — treating each person as a brother, sister, father, mother, son, or daughter.
Dr. Ian Yamane is a Functional Medicine practitioner and cognitive health specialist with over 30 years of clinical experience helping patients overcome chronic and complex health conditions. His passion for healing began at a young age in a small community in San Diego County, where he witnessed his mother suffer from debilitating illnesses for over 20 years. Her condition left her bedridden and stripped of vitality. Despite frequent visits to top specialists and an ever-growing list of prescriptions, lasting healing never came. Watching his father juggle full-time work, family responsibilities, and caregiving left a lasting impression—and sparked a lifelong mission in Dr. Yamane: to help families avoid the heartbreak of chronic illness by addressing its root causes.
Read MoreKatie is a Registered Nurse with a Master’s in Nursing, as well as a Certified Nutritionist and Health Coach passionate about functional medicine, gut health, hormonal balance, inflammation, and helping those with autoimmune conditions. Katie's passion for functional medicine began in 2018, when she was diagnosed with an autoimmune disease and was able to bring it into remission through functional medicine.
Katie believes in a balanced, realistic approach to wellness, one that supports both the body and mind. She loves connecting with clients on a personal level, drawing from her own experience to help them feel seen, heard, supported, and empowered along their journey. Her long-term goal is to become a Functional Medicine Nurse Practitioner and to continue bridging the gap between modern medicine and functional medicine to help patients achieve the level of health they desire and deserve.
Outside of her professional life, Katie is a proud mom and dog mom. She loves spending her free time reading, exercising, listening to podcasts, overland camping, and baking.
Jessica is a Certified Holistic Nutritionist, Health & Wellness Coach specializing in Functional Nutrition, chronic health conditions, gut, hormonal & adrenal issues, inflammation & sustainable weight loss. Jessica believes in realistic & maintainable wellness (as everyone should indulge once in a while)!
Jessica's goal is to always meet clients where they're at in the moment so that she can assist not only in attaining goals but also with learning to actually enjoy the process. Jessica enjoys connecting with clients on a personal level most importantly because she's been there herself and knows that the wellness journey is one traveled far easier with a guiding and helpful hand
Wendy is a graduate of Seattle Massage School, Nutrition Therapy Association, Trinity College, Cornell University and The Institute of Functional Medicine. Following graduation from Seattle Massage School, she went on to be a Functional Nutritionist and has been in full time clinical practice for 25+ years. She has hundreds of hours of continuing education with extensive work with weight management, digestive issues and perimenopause/menopause support.
Most of her work is clinic based, yet also offers virtual consulting- involving clients with varied nutrition health challenges, with most clients bringing in the whole family and becoming healthy for life.
Currently, she is practicing Functional Nutrition at Valhalla Wellness Medical Center with like- minded Medical Doctors and an Internal Medicine Physician.
Every day I get to come to work knowing we are making a difference! I love functional medicine and all that is stands for. Healing people at a cellular level and helping the body heal itself is amazing. I have seen our Valhalla Team help 100s of patients over the years. We have a Team that truly does care about patients and wants to help them be their best self!
When I am not working, I enjoy spending time with my husband, kids, mom, friends and dogs. I also have 2 grandchildren that I adore and love to spend time with! I love golfing! Being out on the golf course is so relaxing, even when I am playing bad!
I started becoming intrigued with functional medicine after my sister was diagnosed with brain cancer. I saw what prescription medication did to her and how it affected her children, her husband and the rest of our family. We all started slowly changing our lifestyle. We’ve seen improvement and it’s the best feeling in the world.
My husband, children and I recently moved to Las Vegas from Hawaii. Going to the beach used to be something we did almost every weekend. Now that we don’t have the beach, we find ourselves at the parks a lot. I enjoy spending time, outdoors, with my family.
I have worked in retail customer service at a craft store for many years. I liked helping people with their design and creativity ideas. I felt I had made a difference in their lives even just a little.
I became part of the Valhalla Wellness Family in late January of 2022. It was my first time working in a medical office, and I didn’t know much about Functional Medicine. While working at Valhalla, I have learned more about Functional medicine. I found myself enjoying working with patients and hearing the great things that Dr. Yamane has done for them. I, myself have started my personal healing here at Valhalla.
I have two little ones at home who I spend all my off time with. I enjoy sewing, crafting, and making things for my little ones. When I have the time, I enjoy watching movies, reading books, gaming and a playing a little Dungeons & Dragons.
