Please Call for Questions or to Schedule an Appointment
Phone: 1-909-766-5397

Address: 9045 Haven Ave Ste 108 Rancho Cucamonga CA, 91730

Why Koi? Koi fish are known for swimming against the current to overcome great obstacles. Koi fish symbolize strength, courage, patience, and success through perseverance. Koi is synonymous with companionship, friendship, and love. Koi in Japanese culture represent the balance of Yin and Yang. Like the Koi fish qualities, we believe that pain and disease can be overcome through support, determination, and harmony.

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About Dr. Marissa Palmer – DC, 

Doctor of Chiropractic

Bachelors of Science, Kinesiology Allied Health

Founder, Koi Chiropractic & Acupuncture

Marissa’s deep love for people and passion for natural healing led her to pursue a career in chiropractic care. Driven by a desire to make a meaningful difference in others’ lives, she founded Koi Chiropractic & Acupuncture with the mission of providing compassionate, effective care tailored to each individual.

She believes that health challenges are often complex and require a personalized, holistic approach. Through specialized chiropractic care, Marissa is committed to addressing the root causes of discomfort and empowering patients on their journey to long-term wellness.

Specialties

Marissa specializes in using gentle adjusting techniques to reduce pain. She wants her patients to feel comfortable through the whole treatment process and feel great leaving. This includes educating patients on the exact mechanical, neurological, and structural flaws that are aggravating their pain. Each session will be filled with exceptional insight, clear patient information, and a pleasant treatment.

Marissa also specializes in rehabilitation and strength therapy. She has worked with many injuries, stroke, and other neurological compromised patients. Her patients have all left with better balance, coordination, strength, and a better attitude. Through the use of adjustments, strength and balance exercises, and other hands on techniques patients see progression with each visit.

About

Marissa was first inspired by watching chiropractors treating horses’ pain, gait, and improving their quality of life. She was astonished by how horses non-verbally expressed their appreciation for chiropractic immediately after treatment.

Marissa was further inspired to become a chiropractor after being treated for headaches and migraines originating for the neck while completing her Kinesiology degree. Her chiropractor used hands on techniques, postural analysis, and lifestyle advice to cure this issue. The use of these many treatment options sparked her love for chiropractic and treating others. Her goal is that every person is checked for subluxations, and adjusted when necessary.

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About Physician Michael Mark – LA.c, Dipl. O.M

California Licensed Acupuncturist

Physician of Oriental Medicine

Nationally Certified Diplomat of Acupuncture & Oriental Medicine. Including: Diplomat of Herbal Medicine and Diplomat of Asian Body Work (NCCAOM)

Certified in Clean needle technique

Michael Mark grew up with a strong sense of community and service, shaped by the guidance of his two older brothers who taught him the value of family, support, and resilience. For Michael, family means everything, and that spirit of connection carries into the way he cares for his patients.

He treats each person with warmth, respect, and dedication—like family—finding no greater reward than helping them achieve their health goals. Known for building strong, trusting relationships, Michael believes that trust, teamwork, and hard work are the keys to overcoming any obstacle. His compassionate approach and commitment to personalized care make him a valued partner in every patient’s journey to better health.

Specialties

Michael specializes in internal medicine and diseases of the organs. This includes hypertension, diabetes, infertility, insomnia and many other disorders. He knows that diseases are complex. Internal imbalances may be caused from the external environment, nutrition, overwork, and lack of exercise. He takes the time to make a proper diagnosis by including all systems of the body and interpreting how they dysfunction. Michael will always explain what he finds and why the symptoms manifest. All patients will leave with a clear understanding of their disorder, the treatment recommendations, and the expected outcome. He will treat the root of the problem to achieve the fastest healing.

Michael uses science based treatments. He gently combines Oriental Medicine with Western Medicine. He uses time-tested and research-based needling techniques that have been shown to have great medical effectiveness. He spends his free time researching new techniques and the latest breakthroughs in treatment protocols, herbal medicine, and lifestyle recommendations.

About

Michael grew up with acupuncturists, herbalists, and martial artists. His family showed him how Oriental medicine has a profound effect on the practitioner and patient. As a child, Michael grew up in a family that relied on acupuncture and herbal  medicine. His grandfather  is a grand-master of the Praying Mantis Kongfu system. His family taught him the importance of movement and energy’s ability to heal. Michael would use acupuncture and herbal creams to cure a multitude of his sport injuries. Through these experiences, his passion for Oriental medicine grew. Michael is a graduate from Southern California University of Health Sciences. His schooling showed him that Oriental medicine can cure more than pain and he began his focus on internal medicine.

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About Massage Therapist Guillian Cardenas – LMT

English / Español

Guillian Cardenas was raised with a deep appreciation for the importance of caring for one’s body and living a healthy, natural lifestyle—a philosophy she continues to embody and share with her clients. Her lifelong commitment to holistic well-being inspired her to pursue a career in massage therapy, where she could empower others to achieve their own health goals.

Guillian graduated from United Education Institute in 2010 and has spent the past 15 years building her career in the medical field. Her approach to healing is constantly evolving, shaped by both formal training and the personal connections she builds with her clients and colleagues. She is skilled in a wide range of therapeutic techniques, including Swedish, deep tissue, cupping, lymphatic drainage, pregnancy massage, and acupressure.

Guillian’s dedication stems from her strong family values and her drive to create a better life for her children. As a proud mother of three independent adult children—one currently serving in the U.S. Navy—she leads by example, showing the power of hard work and perseverance. Her home is full of love, shared with two dogs, four cats, and a rabbit.
With warmth, experience, and a passion for healing, Guillian welcomes every client with the goal of restoring balance, relieving pain, and supporting a healthier, more grounded life.

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Insurances

Health Maintenance Organization (HMO) & Preferred Provider Organization (PPO):

• American Specialty Health, Kaiser Permanente, Anthem BlueCross, Anthem Blue Shield, Simple Therapy / Physmetrics / ChiroMetrics (Simple MSK), Inland Empire Health Plan (IEHP), Scan, Brand New Day, Aetna, Landmark Health, Health Net, Cigna and many more.

Please call with your Membership Information and Insurance ID to verify your benefits.

Phone:1-909-766-5397

Our practice is dedicated to serving the Rancho Cucamonga, Alta Loma, Fontana, Upland, Ontario, Rialto, Bloomington, Jurupa Valley, Colton, Pomona, Chino, Jurupa Valley, Riverside, San Bernardino, and the Inland Empire region.