Medical Team
dr. terry rice
medical director
Dr. Terry Rice, a physician and educator with more than 35 years of experience, serves as medical director at Sydenham Clinic. Dr. Rice specializes in Internal Medicine and prior to her role with Sydenham, she held key leadership roles as Medical Director at MD Anderson Emergency Center, Deputy Director of Ben Taub General Hospital Emergency Department and as Delta Airlines’ Medical Director of Concourse Health. As part of the clinic’s mission to use the most recent innovations in precision medicine, she integrates detailed and cutting-edge genomics with hormonal and nutritional data to design a personalized approach for each patient to help them achieve their unique health and wellness goals. Dr. Rice has specialty training in hormonal replacement therapy, weight loss and cognitive decline with specific interests in Alzheimer’s disease, dementia, and the aging process. She has specialist training in hormonal replacement theory through A4M. She also has a significant amount of experience in both men and women using different hormonal modalities. Dr. Rice had additional training through both the genomics of Alzheimer’s disease and application of Dale Bredesen protocol and treats patients for both prevention and reversal of mild cognitive decline. She has experience in reversing many of the manifestations of obesity such as metabolic syndrome and has had significant success in utilizing functional nutrition and medications for weight loss therapy.
kenya tijerina
office manager
A certified Medical Assistant, Kenya Tijerina has dedicated her career to providing skilled and compassionate care to patients while expertly managing office management functions for medical groups. Prior to joining the Sydenham Clinic team, she held longtime positions with a Memorial area family practice and a prominent Houston fertility center.
She is fluent in Spanish.
ashley koehler
nurse practioner
Ashley Koehler FNP-C comes to the Sydenham Clinic team with extraordinary qualifications to assist our doctors and create even more healthcare value to our members.
She has seven years of experience working at both Houston Methodist and MD Anderson Cancer Center, and has earned her license as an Advanced Practice Registered Nurse (APRN) from the Texas Board of Nursing. Ashley has also gained her certification as a Family Nurse Practitioner from the American Academy of Nurse Practitioners (AANP). As a FNP, she is trained to care for all age groups throughout the lifespan in the outpatient setting.
Heather Dockstader, MS, MB(ASCP)CM
Nutritionist & Genomic Analyst
Heather is a dedicated Clinical Nutritionist and Molecular Biologist with over nine years of experience in clinical operations, project management, and strategic planning. With a deep-rooted passion for biochemical and functional nutrition, Heather combines her expertise in genomic analysis to empower individuals to achieve optimal health through personalized, evidence-based strategies.
In her professional journey, Heather has demonstrated exceptional leadership in managing teams and complex clinical trials. Her role as Clinical Laboratory Scientist at NeoGenomics Laboratories involved leading genetic sequencing validation studies and contributing to significant advancements in cancer companion diagnostics for targeted therapy.
Heather’s recent graduate studies have deepened her passion for applying the science of nutrition to optimize cellular health. As a nutritionist and genomic analyst at Sydenham Clinic she is committed to providing tailored nutritional guidance and genomic analyses that support functional well-being and energy. Her mission is to revolutionize well-being by prioritizing cellular health and functional nutrition solutions.
Outside of her professional life, Heather enjoys an active lifestyle that includes hiking, strength training, running, and rebounding, which not only benefits her physical health but also enhances mental clarity and neurogenesis. She is passionate about educating others on how to improve their gut biome density and biodiversity through natural food choices and lifestyle behaviors.
Dr. Adam Brittain
Internal Medicine and Surgery
Dr Adam Brittain is residency trained in Internal Medicine and Surgery and is Board certified in Internal Medicine. He is a diplomat of the American Medical Association and a fellow in the American College of Physicians. He is an attending physician at Houston Methodist Hospital and has extensive experience in the field of ultra-exclusive concierge medicine, taking care of some of the most influential people in the country in areas such as entertainment, fashion, technology, and finance. His areas of interest and expertise involve chronic inflammation, autoimmune disorders, and longevity. He believes that if you treat your body the right way, it will heal itself.
emily murphy
membership director
Emily has been passionate about health and fitness her entire life. Having a long standing career in sales and customer service, she prides herself in cultivating meaningful, professional relationships. Being a big believer in cutting edge medicine, along with all things wellness and nutrition, she is eager to educate Houston on what we do here at Sydenham Clinic.
