Meet the Faculty

Tracey O’Shea

Tracey O’Shea, MSN, FNP-C, IFMCP

Program Director

Tracey O’Shea is a licensed, board certified Functional Medicine Nurse Practitioner (FNP-C). She was first introduced to Functional Medicine in 2013 when she knew there had to be another way to help patients reach their long-term health goals. Working closely with Chris Kresser at the California Center for Functional Medicine, she found her work to be rewarding and fulfilling. Shortly after, she became the director of the Kresser Institute ADAPT Practitioner Fellowship and Certification Program and is a Certified Functional Medicine Practitioner through the Kresser Institute and IFM.

Tracey continues to treat patients at the California Center for Functional Medicine, offering patients a personalized and comprehensive treatment approach to chronic illness, incorporating her clinical skills into the program curriculum and clinical fellowship training.

While she has experience managing a variety of chronic health conditions, she has particular experience with and training in:

  • Digestive problems and food intolerances
  • Low immune function, allergies, asthma
  • Heavy metal toxicity/detoxification
  • Mycotoxin and mold illness/Chronic Inflammatory Response Syndrome (CIRS)
  • Autoimmune diseases
  • Hormone imbalances and Bioidentical Hormone Replacement (BHRT) therapy (HPA axis, adrenal, thyroid, sex hormones, etc.)
  • Metabolic problems (weight, blood sugar, blood pressure, etc.)
  • High cholesterol and cardiovascular disease
  • Fatigue, low energy, and poor sleep
  • Cognitive and neurological disorders
  • Any of the above conditions and neurodevelopmental disorders like ASD and ADHD in the pediatric population

Tracey enjoys spending time with her husband, daughter, and boxer. They enjoy hiking, camping in their travel trailer, outdoor patio gatherings, wine tasting, visiting restaurants, and spending time with friends.

Chris Kresser

Chris Kresser MS, LAc


Chris Kresser M.S., L.Ac is the founder of Kresser Institute, owner of ADAPT Naturals, creator of, and the New York Times best-selling author of The Paleo Cure and Unconventional Medicine. He is one of the most respected clinicians and educators in the fields of Functional Medicine and ancestral health and collectively has helped train over 2,000 clinicians and health coaches in his unique approach. Chris was named one of the 100 most influential people in health and fitness by and has appeared as a featured guest on Dr. Oz, Fox & Friends, and in other national media outlets.

Sunjya Schweig

Sunjya Schweig, MD


Sunjya K. Schweig, MD, is deeply committed to building a cutting edge, data driven ecosystem for the prevention and reversal of chronic illness. He has been studying, teaching, and practicing integrative and functional medicine for over 25 years.

Dr. Schweig is the Founder and President of the California Center for Functional Medicine (, and provides personalized, precision medicine care that is fundamental for managing patients with chronic illness.

CCFM provides a comprehensive care team that leverages data and data visualization. This high-touch and high-tech approach offers patients the optimal opportunity for prevention and recovery from complex chronic illness.

CCFM is at the forefront of the functional medicine movement and, since 2016, has been honored to provide comprehensive health and wellness programs for first responders to help mitigate the unique occupational risks that they experience.

In 2021, Dr. Schweig founded the Functional Medicine Research and Technology Center ( which aims to prevent and reverse chronic illness through research, education, and innovation.

Dr. Schweig received his B.A, from the University of California, Berkeley. He received a full scholarship to attend medical school at the University of California, Irvine, where he helped design and lead the complementary and alternative medicine (CAM) curriculum. There he served on the Board of the Susan Samueli Center for Complementary and Alternative medicine and was chosen as one of twenty medical students to attend the NIH Leadership Training Program in Complementary and Alternative Medicine.

Dr. Schweig completed his family medicine residency at the University of California, San Francisco (UCSF), Family Practice Residency Program in Santa Rosa, CA. During his residency, he was instrumental in developing and founding the Integrative Medicine Fellowship program.

Dr. Schweig continues to be active in medical education and has served as volunteer clinical faculty at the UCSF Santa Rosa Residency. He currently holds an adjunct faculty position at Touro University College of Osteopathic Medicine. Dr. Schweig has lectured nationally and internationally at conferences, hospitals, and universities, and is active in medical research with published articles on botanical medicines for tickborne infections.

Dr. Schweig has been in private practice since 2007 and is board certified in family practice (ABFM) integrative and holistic medicine (ABIHM).

Megan Anderson, APN

Megan Anderson, APN


Megan Anderson is a Nurse Practitioner, who received her nursing degree from the University of North Carolina at Chapel Hill in 2004. Megan worked as a staff nurse in both pediatric cardiology/surgery and gynecology/oncology for 3 years before starting graduate school at the University of Illinois at Chicago in 2006. She worked at a Federally Qualified Health Center for 3 years during graduate school before becoming a Board Certified Women’s Health Nurse Practitioner in 2009.

In 2010, Megan moved to Fort Collins, Colorado with her husband and son, because they wanted a lifestyle change and easy access to the mountains. Megan worked at another FQHC for 2.5 years with low-income pregnant women, and in 2013, she began working at an integrated medicine clinic. It was there that she was introduced to the paleo/primal lifestyle and then found her way into the world of functional medicine. After completing the ADAPT Program with the Kresser Institute for Functional and Evolutionary Medicine in 2017, she knew that she had found her calling.

From 2017-2020, Megan worked at a functional medicine clinic in Fort Collins called Balanced Well-Being Healthcare. Helping people address underlying chronic issues and get back to feeling their best is what feeds her soul, and she feels grateful every day for the opportunity to help people identify ways to feel and live their best life. She began working with CCFM in 2020, and she now resides in Steamboat Springs, CO.

Outside of work, she loves spending as much time outdoors as possible with her family and friends – running, hiking, skiing, etc. She is obsessed with all things related to human nature and healthy habit formation, and she considers herself to be a perpetual student and learns so much from her patients.

Allie Nowak, PA-C

Allie Nowak, PA-C


Allie Nowak is a board-certified Physician Assistant who graduated with a Master’s degree from the University of Iowa Carver College of Medicine. She was first introduced to Functional Medicine in 2011 during her capstone undergraduate internship with Dr. Terry Wahls; she experienced firsthand the impact a therapeutic diet and lifestyle can have on patients with relapsing-remitting multiple sclerosis. The experience not only was eye opening, but forever changed the way she wished to approach her patient’s care. After completing her graduate school coursework, a year of Primary Care, and transitioning to OBGYN, she decided to pursue Functional Medicine training given the gap she saw in standard medical care. She has completed the Kresser Institute ADAPT Practitioner Training Program as well as advanced training through A4M in “A Metabolic and Functional Approach to Endocrinology”. She began her Functional Medicine career in OBGYN; however, her practice quickly expanded beyond hormone imbalances to include gastrointestinal issues, poor sleep, fatigue, metabolic problems, and autoimmune disease. She has been a part of the CCFM since May 2021.

Allie currently resides in Wisconsin with her husband, two children, two Miniature Goldendoodles. In her free time, hiking, camping, cooking, traveling, weightlifting, running and spending time with friends brings joy to her life.

Lindsay Christensen, MS, CNS, LDN, A-CFHCLindsay Christensen


Lindsay Christensen is a nutritionist with a B.S. in Biomedical Science and an M.S. in Human Nutrition. She is a Certified Nutrition Specialist (CNS) and Licensed Dietitian Nutritionist (LDN); the CNS is a formal credential for nutrition professionals who have a Master’s or doctoral degree in nutrition and have fulfilled rigorous eligibility requirements, including a 1,000-hour supervised practice experience.

Lindsay loves translating nutrition science into personalized, realistic nutrition and meal plans for her clients. She is the team nutritionist at The California Center for Functional Medicine, where she enjoys working with a variety of patients with chronic health conditions. In her private nutrition practice, Alpine Fuel Nutrition, she works with mountain athletes, including trail runners, to help them optimize their nutrition and health so they can feel and perform their best on and off the trails! Outside of work, Lindsay is an avid trail runner, backcountry skier, mountaineer, and backpacker, and loves eating nourishing foods to fuel her adventures!

John Kinyon

John Kinyon, MS

John is on a mission to help people learn communication and conflict resolution skills that create empathy, compassion, and collaboration. For more than two decades, John has mediated conflicts in a wide range of contexts, including families, businesses, and organizations.

A certified trainer of the Center for Nonviolent Communication (CNVC) since 2000, he’s the co-creator of the international Mediate Your Life (MYL) training program, which draws on the international work of Compassionate Communication (Nonviolent Communication/NVC) with mindfulness and a mediation framework.

A seasoned speaker, trainer, and coach, he’s the author of several books, including When Your Mind Sabotages Your Dreams: Turning Your Critical Internal Voices into Collaborative Allies. He studied clinical psychology at Penn State University, and during his five years of doctoral study, he worked as a psychotherapist with individuals and groups and as a research assistant at the Stress and Anxiety Disorders Institute. John lives with his wife and children in the San Francisco Bay Area.

Forest Fein

Forest Fein, MA

Forest is the Founder + Director of Wise Up: Greater Wisdom + Wellbeing for All, a non-profit offering innovative mindfulness-based, science-backed trainings to the underserved, organizations and corporations. He is also the Head of Mindfulness Programs for Teens + Young Adults at UCSF Osher Center for Integrative Medicine.

Through community partnerships, Forest designs and teaches mindfulness-based wellness programs that incorporate yoga, social and emotional intelligence and positive psychology to support at-risk and homeless youth and the people who serve them to experience greater resiliency, health and well-being. As of 2019 Wise Up programs have touched the lives of over 3500 underserved youth and staff. All of his work is rooted in teachings and practices that support compassionate awareness of and care for oneself, one another and our world. Forest has been practicing mindfulness since 1999.

Keith Rhys

Keith Rhys

For more than 30 years, Keith has helped natural health and wellness companies and entrepreneurs find their unique message, attract their passionate audience, and create lasting authority, impact, and income.

As a former health products marketing VP, content marketing expert, and strategic advisor, Keith has helped health practitioners, wellness authors, supplement formulators, and some of the biggest alternative wellness companies in the world break through the noise and get noticed.

Keith has shown his clients how to go from nonexistent to #1 on Google for meaningful keywords in under six months and grow their lists from 5,000 to 100,000 in under a year. In addition to producing multiple New York Times best-selling health authors, he has helped health practitioners launch digital products that produce 200 percent more income annually than they make from seeing patients.

Keith now works exclusively with current and future thought leaders in health and wellness through private consulting and via his online guided course, Evergreen Authority. He teaches you how to build an audience and attract clients, patients, and followers without becoming a full-time marketer, without putting your practice on the back burner, and without sacrificing your purpose and authenticity.