Dr. Jaclyn Smeaton, ND, is the Chief Medical Officer (CMO) at Precision Analytical and a naturopathic physician focused on infertility, reproductive, and genitourinary health. In addition to her private practice, Hello Fertility, she is a prolific teacher in the field of reproductive endocrinology and hormones and has trained thousands of clinicians on her treatment methodology. Dr. Smeaton has extensive leadership experience in integrative medicine including as president of the American Association of Naturopathic Physicians, as an ambassador for the Academy of Integrative Health and Medicine, and a board member of the Integrative Health Policy Consortium.

Dr. Allison Smith, ND, completed her education at the National University of Natural Medicine in Portland, Oregon. She has worked in private practice focusing on primary care, women’s health, and dermatologic laser therapy. Over the last 10 years, she has consulted with providers on thousands of cases in the context of hormone testing and brought awareness of testing to providers in clinical practice through consulting, webinars, case presentations, and articles. She now leads an esteemed lineup of clinical educators at Precision Analytical, home of the DUTCH Test.

Dr. Tim Hyatt received his doctorate in naturopathic medicine in 2006. He brings a broad range of skills and perspectives from years of clinical practice and is currently serves as a clinical educator for Precision Analytical in McMinnville, Oregon. His medical interests include endocrine function, neurochemistry and physical medicine. Dr. Hyatt is also the president of Biogenic Nutrition LLC, a nutraceutical company specializing in unique, condition-specific formulas.

Dr. Brook Ahnemann is a licensed naturopathic doctor in Oregon. She graduated from the National University of Natural Medicine. Before joining Precision Analytical as a clinical educator, she ran a successful family medicine practice in Portland that focused on men’s and women’s health, pediatrics, and complex chronic illness. She loves using herbs, nutrition, and lifestyle to support people—as well as all the conventional medical tools available.

Dr. Sarah Tindall is a licensed naturopathic doctor who completed her medical education at the National University of Natural Medicine in Portland OR graduating in 2018 with both her Doctorate in Naturopathic Medicine as well as a Master of Science in Nutrition. She completed 3 years of residency in naturopathic primary care with an emphasis on women’s health including contraception procedures, hormone therapy, and integrative options for menopause management.
 Following completion of residency, Dr. Tindall has kept busy working at a high-volume primary care practice where she endeavors to provide evidence-based, integrative family medicine for all. She is thrilled to put her hormone expertise to work with Precision Analytical to provide education to clinicians on hormone biochemistry and teach others how to utilize the DUTCH test to optimize health.

Dr. Kaitlin Tyre is a licensed naturopathic doctor who completed her training at the National University of Natural Medicine in Portland, Oregon. Prior to joining Precision Analytical as a clinical educator, she owned and operated her own private practice in Orange County, California where she focused on helping her patients optimize their digestive, hormonal, mental, and skin-related health through naturopathic and integrative approaches. Her favorite treatment modalities include nutrition-based therapies, accessible lifestyle modifications, botanical support, and pharmaceutical interventions when needed. Dr. Tyre prides herself on the compassionate care and education she has provided her patients in order for them to achieve their health goals.

Dr. Kelly Ruef is a licensed naturopathic doctor who completed her medical education at the National University of Natural Medicine (NUNM) in Portland, Oregon. She completed a private residency at Pearl Natural Health in downtown Portland, where she specialized in inflammatory bowel diseases and women’s health. Currently, she is a clinical educator for Precision Analytical, makers of the DUTCH Test where she spends most of her time educating on how urine testing can improve the field of women’s and men’s health. With her background in biochemistry and cell biology, Dr. Ruef loves learning about the hormones and biochemical pathways in the human body, and she makes a point to share what she has learned through videos, blogs, social media posts, and podcasts with the hope that her education will help us all find happiness in health.

Dr. Rebecca Clemson is a licensed naturopathic doctor who is passionate about educating and empowering others to reach their full potential in health, wellness, and life. She graduated with honors from the National University of Natural Medicine in Portland, Oregon in 2017. Following graduation, she spent five years in a private family practice with a focus on women’s health and hormones. She has completed advanced training in functional endocrinology, menopause and andropause, thyroid health, fertility, and hormone replacement therapy. She has been a clinical educator with DUTCH for several years.

Dr. Christina O'Brien, DC, RDN, DACNB, IFMCP is a highly skilled and compassionate healthcare professional with years of experience in helping her patients achieve optimal health and wellness. She earned her Doctor of Chiropractic degree from Sherman College of Chiropractic in Spartanburg, South Carolina, and her Bachelor of Science in nutrition and dietetics from the University of Massachusetts at Amherst with a dietetic internship at Winthrop University in Rock Hill, South Carolina. As a clinical educator with Precision Analytical, Dr. O'Brien is part of a team of doctors who are highly regarded in the functional medicine testing world. Her expertise and experience are highly valued by Precision Analytical, and she is frequently asked for by name to consult on tough hormone cases.

Lindsey is a nationally board-certified Women’s Health Nurse Practitioner since 2011 and has extensive experience in providing comprehensive care to women across all life stages. She has additional training in reproductive health, prenatal and postnatal care, fertility, and hormone replacement therapy. She is known for fostering compassionate and trusting relationships with patients and healthcare professionals by providing education and support with a side of playfulness. Lindsey has been part of the Clinical Educator team for Precision Analytical since 2021.

Dr. Aisha Nouh, ND, RH(AHG), is a licensed naturopathic doctor and registered herbalist specializing in integrative women’s health and pediatrics with advanced training in botanical medicine and hormone therapy. She completed her naturopathic doctorate at Bastyr University in 2017 and has been a registered herbalist with the American Herbalists Guild since 2018. In addition to running a private telehealth practice and botanical medicine education platform at Herbal Education Resource (HER), Dr. Nouh has worked in higher education, community health, and hospital-based settings. She has been featured as a guest writer and lecturer on the uses of botanical medicine in clinical practice. She is excited to bring her expertise to Precision Analytical as a clinical consultant for DUTCH.

Dr. McKenzie Mescon received her doctorate in naturopathic medicine from the National University of Health Sciences in 2016. Following graduation, she completed a residency in Primary Care and General Practice. Dr. Mescon is a second-generation Institute for Functional Medicine Certified Practitioner, having completed her training with the IFM in 2023. In addition to working with Precision Analytical as a Clinical Consultant, Dr. Mescon maintains a clinical practice where she focuses on women’s health including fertility, perimenopause and HRT, as well as fatigue and thyroid disorders. Her practice, Sparrow Medicine, is located in Bozeman, Montana.

Dr. Sara DeFrancesco is a Naturopathic Doctor who graduated from the National University of Natural Medicine in 2014 and spent 9+ years as a dual licensed ND and LAc serving patients in the Portland area with a focus on chronic digestive issues, hormone health, mood & brain health, and autoimmune conditions. Dr. DeFrancesco's interest in patient education, public speaking, and clinical advancement naturally lead her to work in clinical consulting and where she enjoys guiding practitioners in lab interpretation and clinical education.