Alex Williams, Founder & CEO

Alex Williams’s career has been defined by community, curiosity, and growth. Her career is multifaceted, centered on caring for people through work as an EMT, birth doula, home healthcare provider, and in law enforcement. She carries a commitment to health optimization from her days as a triathlete and wrestler. As a granddaughter of Black Panthers and a self-defined “nerd and giant fan of the endurance people have to navigate health challenges,” Alex works to find better solutions to help her patients heal and return to their daily lives, focusing acutely on reversing the impact of larger systems on minority communities.

As the founder and CEO of Holistic Hyperbarics, she is committed to leveraging her power and knowledge of hyperbaric medicine to serve communities by providing health care for the whole person. Already building a history of research and innovation in its first five years – Alex holds patents for new research modalities and chamber innovation – Holistic Hyperbarics has gained a reputation as a clinic that provides leading hyperbaric medicine and patient-centered care.

Each of the steps in Alex Williams’s career has been distinguished by merging medical practices and a nurturing environment, creating space for optimal healing. She has a deep knowledge of medical issues—she has been an EMT, an in-home birth doula, and home health care for surgical recovery—and is quick to research and learn about anything she doesn’t already know, or bring in the resources she needs, so that her clients can trust that they will always get educated care.

In her nine years as an EMT, Alex noticed that people with chronic illnesses or pain were often not listened to or heard by the medical community. Her own 15-20 minutes with each person in the ambulance left her wanting more time to get to know and help them. The dual desire - to give people with chronic illness or pain the gift of listening to their stories and spending more time helping people to heal - were formative in her transition to hyperbarics.

In her days as a triathlete, Alex learned of athletes who used hyperbarics to recover more quickly from workouts and training sessions. When, as a wrestler, she badly tore her shoulder, she decided to try hyperbarics instead of the Vicodin she was prescribed. Her small home-sized chamber healed her shoulder in three and a half weeks, and once she started talking about it on Facebook, friends began to come over to try it for themselves. Eventually, she realized that this was another way to combine her medical knowledge with her desire to help people heal, and do it in a nurturing way that treated the whole person.

With that, Holistic Hyperbarics was born in 2017, offering clients the proven medical benefits of hyperbarics in a spa-like, healing setting.

Dr. Fullerton Medical Director

John H. Fullerton, MD, MRO, CMD, CFP, FACP, AGSF, FAAHPM, FASAM

We are honored to have Dr. John H. Fullerton serve as our Medical Director at Holistic Hyperbarics. 

Dr. Fullerton is Board Certified in both Internal Medicine and in Geriatrics. He maintains active medical licenses in both California and Florida. He is also Board Certified in Hospice and Palliative Medicine and holds national certificates of added qualifications as a Certified Medical Director (CMD) at multiple levels of care locally and in Home Care (AAHCP).

Dr. Fullerton is on the clinical faculty of UCSF, USC and Yale University Medical School(s) in their respective Department(s) of Medicine and has served as a clinical instructor for medical students and residents at the San Francisco Free Clinic (SFFC is an affiliate of UCSF and Yale Medical Schools and the 2013 recipient of the 'University of San Francisco California Prize for Service and the Common Good').

In May 2014, Dr. Fullerton took office for a two-year term as President-Elect for the CA Chapter of AMDA (American Medical Directors Association), after serving as Vice-President-Elect for the previous two years.

Dr. Fullerton served as the Certified Medical Director to Aegis of Corte Madera for twelve years where he maintains his Corte Madera practice focusing on geriatric care and preventative medicine in both the Assisted Living and the Alzheimer's Disease (Life's Neighborhood) units.

In November 2014 Dr. Fullerton accepted the appointment as Certified Medical Director to AlmaVia of San Rafael and opened the Hampton Health, Ltd.™ San Rafael practice within the Assisted Living Community. The AlmaVia office has also been deemed a geriatric training site through numerous hospital and university educational affiliation agreements with residents and students training on-site with Dr. Fullerton.

He proudly serves on the Board of Directors of the California Association of Long Term Care Medicine (CALTCM), where he is also Chair of the Legislative Sub-Committee and Member of the Policy and Professional Services Committee and further serves as the AMDA (American Medical Directors Association) Chair of Public Policy for the State of California in Washington, DC.

Dr. Fullerton maintains Medical Staff Privileges at Marin General Hospital (MGH-Greenbrae) where he is an active member of the Laboratory Liaison Committee and typically utilizes and communicates frequently with the ER and/or the hospitalists. Also a life-time member of the Association of Clinical Faculty (ACF) at UCSF, key clinical faculty at St. Mary's Medical Center (and their hospital-based: Sister Mary Philippa Health Care Center), with additional Active Medical Staff Privileges at St. Mary's Hospital (SF, CA).

Dr. Johnson

Dr. Rachelle Johnson is a Naturopathic Doctor who has enthusiastically joined the Holistic Hyperbarics team as the On-site Medical Supervisor! 

“Doc,” as she is affectionately known, was inspired by life experiences and family health concerns to prevent and treat chronic illnesses.  She is passionate about working with prevention medicine and treating the root cause of disease.  Dr. Rachelle has seen the results of poor glucose management and poor blood pressure management directly in her family with leg amputation from uncontrolled diabetes, chronic kidney disease which can result from uncontrolled diabetes and blood pressure issues, stroke from high cholesterol, and prostate cancer from toxic exposures all being of huge concern.  She even sought out and utilized Holistic Hyperbarics to assist a family members' recovery after a significant medical event.  

Fast forward, Dr. Rachelle was able to meet Holistic Hyperbarics owner Alex, who had actually been seeking her out.  She was immediately in love with her wellness center vision and passion to get hyperbarics and natural medicine to the underserved community. To now be on the Holistic Hyperbarics team to bring this medicine to the masses and incorporate natural therapies and nutritional IV therapy, Dr. Rachelle is honored.  

In private practice, Dr. Rachelle has a remote and mobile consultation, testing, and IV therapy practice that focuses on digestion, anxiety, depression, and all types of hormones both in California and in North Carolina (her home state).  She does functional medicine lab testing and addresses such concerns by using modalities such as Nutritional medicine (therapeutic diets, nutrient supplements, nutritional IV therapy), Botanical medicine, Chinese medicine, Homeopathy, and Physical medicine.   At the core of all of this is health education and lifestyle counseling.  Dr. Rachelle loves working with people and draws on experiences in working in various communities and with various cultures.  

Dr. Rachelle received her Doctorate in Naturopathic Medicine and Masters of Science in Oriental Medicine from National College of Natural Medicine (now National University of Natural Medicine) in Portland, Oregon.  During this time, Dr. Rachelle did rotations in Chinese Medicine, Chronic Care, Cancer Care, Women’s Health, Naturopathic Cardiopulmonary Care, and Botanical and Anthroposophical medicine. Prior to medical school, Dr. Rachelle worked in cancer research and also received her Masters in Public Health Education.

Specialties and Symptoms Treated: 

Digestive Health: Food sensitivities, Stomach ulcers, Constipation or Diarrhea, Bloating, Malabsorption, Micronutrient deficiency, Anemia, and more. There is a “gut-brain connection” where digestive issues can lead to issues of brain fog, poor memory, and issues with mood.  Joint pain and skin issues can even be a symptom of issues with digestion.

Hormone Balancing: Blood sugar dysregulation (diabetes, hypoglycemia), Thyroid issues, Sex hormone imbalance, High cortisol, Adrenal Fatigue, and much more.  Hormones in the body are rhythmic and can be easily tested.  

Weight Loss: Inability to lose weight despite diet and exercise?  Need guidance on how and when to eat for your body type? Want to lose weight naturally so it stays off long term?  Dr. Rachelle can help you figure out what is happening in your body and get you on the right path. 

Women’s Health: Irregular menses, heavy menses, PMS symptoms, Preconception, Perimenopause, Menopause, Cervical dysplasia, and more.  Working with Dr. Rachelle, you can find out what diet, herbs, and homeopathic remedies are the best for you no matter your season of life

Dr. Ajené White

Dr. Ajené White, a distinguished Doctor of Occupational Therapy, brings over a decade of expertise to her role as an occupational therapist. A proud graduate of the University of Southern California, her academic foundation is as solid as her commitment to transforming lives through her work. With a specialization in pelvic floor rehab, pediatrics, and geriatric wellness, Dr. White's skills extend across a wide spectrum of patient needs.

With a decade of hands-on experience, Dr. White is known for her unwavering dedication and passion for her craft. Her empathetic approach and personalized treatment plans reflect her commitment to enhancing the functional independence and well-being of her clients. Her expertise in pelvic floor rehabilitation, coupled with her proficiency in pediatrics and geriatric care, underscores her versatility and broad understanding of occupational therapy's nuances.

Beyond her professional endeavors, Dr. White leads a dynamic life. As a devoted mother of three, she understands the value of balancing her career with her family's needs. In her downtime, she indulges in exploring local hiking trails, savoring the wonders of travel, and immersing herself in the vibrant world of live music and podcasts.

Dr. White's journey, marked by her USC education, a decade of impactful occupational therapy practice, and her multifaceted interests, demonstrates her dedication to holistic care and personal growth. Her remarkable ability to make a positive impact on the lives of her clients resonates with her dedication to her own family and passions outside of her professional realm.

Dr. Scott Sherr, Medical Advisor

Dr. Scott Sherr is a Board Certified Internal Medicine Physician Certified in Hyperbaric Oxygen Therapy (HBOT) and Health Optimization Medicine (HOMe). He graduated Summa Cum Laude from UCLA as an undergraduate and Magna Cum Laude with Alpha Omega Alpha distinction from the University of Maryland Medical School in Baltimore. 

Dr. Scott is the founder of Integrative HBOT and is one of the few providers in the world who uses an integrative approach to HBOT. This approach includes cutting edge and dynamic HBOT protocols, comprehensive laboratory testing (using the HOMe framework), targeted supplementation, personal practices, synergistic technologies (new and ancient). He also has a large network of allied practitioners that he refers his clients to when needed.  

Dr. Scott runs his Integrative HBOT consulting, educating, and advocacy practice through his website, integrativehbot.com.  

His formal titles include Founder of Integrative HBOT, Cofounder of Hbot Plus, COO of Health Optimization Medicine (a nonprofit education company) USA, COO of Smarter Not Harder, Medical Advisor to the One Hit Away Foundation, and Hospitalist at Midtown Inpatient Medicine. 

Dr. Scott has consulted with clinics around the world including Upgraded Labs (LA), Remedy Place (LA), LMS Wellness (London), Port Neuro Chiro (New Hampshire), and many others.

He lives in Louisville, CO with his wife and his 4 children

Dr. Stella Park, Holistic Medical Advisor

Dr. Stella Park, is a master educator and doctor of natural medicine. She holds a BS in Business, an MA Adult Education, and a Doctorate in Naturopathic Medicine. She has a private practice in Oakland, CA that helps people restore their optimal health without drugs or surgery.

She works with her patients to create a complete, individualized solution to help them quickly move towards vitality and health with ease.

Currently practicing 3 days a week, she spends the rest of her time teaching people how to reverse aging and reclaim extraordinary health.

Dr. Stella specializes in mind-body connection for deep healing, cholesterol management, menopause support, diet & nutrition, stress management, and bio-energetic clearing and restoration.