Meet Our Functional Medicine Team
Functional Medicine Collaborative was founded by Sally Davidson, ANP, IFMCP, and Sean Foss, ND, LAc, who share a commitment to providing individualized, patient-centered care. Together, they created a practice that brings multiple healthcare disciplines together to better understand and address patients' health concerns.
Today, our team includes practitioners with backgrounds in functional medicine, naturopathic medicine, nursing, and nutrition. We work collaboratively to help patients better understand their health and develop personalized care plans.
With locations in South Dennis and Hingham, Massachusetts, and Johnston, Rhode Island, Functional Medicine Collaborative serves patients seeking a comprehensive, individualized approach to healthcare.
Sally Davidson, ANP, IFMCP
Co-Founder
Sally Davidson, ANP, IFMCP, is an Adult Nurse Practitioner and an Institute for Functional Medicine Certified Practitioner. She is also a co-founder of Functional Medicine Collaborative.
Sally's interest in functional medicine began in 2009 after reading Dr. Mark Hyman's book, The UltraMind Solution. The book introduced an approach to healthcare that reflected what she had been trying to accomplish within conventional medicine.
As Sally explains:
“Dr. Hyman described everything I was trying to do within the conventional model. The book came at a time when I was feeling so disenchanted with medicine and had thought about leaving medicine altogether. It gave me hope that we could change the way we practice.”
Seeing patients in: Dennis, MA, and Johnston, RI.
Sean Foss, ND, LAc
Co-Founder | Naturopathic Doctor & Licensed Acupuncturist
Dr. Sean Foss is a licensed Naturopathic Doctor and Acupuncturist and co-founder of Functional Medicine Collaborative. He graduated from the University of Bridgeport's College of Naturopathic Medicine and acupuncture program.
Dr. Foss is licensed as a Naturopathic Doctor in Massachusetts and New Hampshire. He is a member of the Massachusetts Society of Naturopathic Doctors and the Medical Academy of Pediatric Special Needs (MAPS).
His approach emphasizes individualized care and identifying factors that may contribute to complex or chronic health concerns.
Seeing patients in: Dennis and Hingham, MA.
Caity Solari, FNP-BC
Board-Certified Family Nurse Practitioner
Caity Solari is a board-certified Family Nurse Practitioner with 12 years of experience in functional and integrative medicine. She holds nurse practitioner licenses in Rhode Island, Massachusetts, and California.
Caity takes an individualized, whole-person approach to care, with particular interests in nutrition, thyroid health, digestive health, and hormonal balance. Her clinical focus includes women's health during pregnancy, postpartum, perimenopause, and menopause, as well as children's wellness.
Seeing patients in: Johnston, RI.
Nicole Williams, LPN, MBA
Licensed Practical Nurse | Patient & Family Clinical Educator
Nicole Williams serves as a Patient & Family Clinical Educator at Functional Medicine Collaborative, working closely with patients and families to provide education, guidance, and ongoing support throughout their care.
Nicole is an important part of FMC's PANS/PANDAS & ASD care program, collaborating with Dr. Sean Foss to help families better understand their individualized care plans, navigate recommendations, and address questions that arise during treatment.
Her role emphasizes patient education, family support, and helping patients feel informed and engaged in their care.
Kimberly Concra, MS, LDN
Licensed Dietitian/Nutritionist
Kimberly Concra is a licensed dietitian/nutritionist with a master's degree in Nutrition from the University of Bridgeport, where she studied nutrition through a functional medicine perspective.
Her family experience with celiac disease and gastrointestinal disorders has shaped her interest in understanding how nutrition influences digestive health and overall well-being.
Kimberly enjoys helping patients discover foods that support their individual health needs. With a passion for cooking, she focuses on making personalized nutrition recommendations practical, enjoyable, and sustainable.
Seeing patients: In person in South Dennis, MA, and virtually.
Our Partners
Functional Medicine Collaborative values working with professionals across different healthcare disciplines. The providers listed below offer complementary services and may serve as additional resources for patients seeking coordinated, whole-person care.
Some of these professionals operate independent practices and manage their own scheduling, fees, and patient care.
Melissa Wynn, PT, DPT
Owner of Thrive Total Body Wellness
Melissa Wynn is a physical therapist with nearly 30 years of experience working with patients across the lifespan, from early intervention through older adulthood.
She earned her bachelor's degree in Physical Therapy from Northeastern University and her Doctor of Physical Therapy degree from Simmons University.
Melissa combines hands-on physical therapy with a whole-person approach that considers movement, lifestyle, and individual goals. Her focus is on helping patients take an active role in their care and achieve meaningful, lasting improvements.
Melissa is also pursuing certification in functional medicine.
Dr. Heather Louks
Doctor of Chinese Medicine | Licensed Acupuncturist
Dr. Heather Louks is a Doctor of Chinese Medicine, Licensed Acupuncturist, and Diplomate of Oriental Medicine with specialized training in herbal medicine.
She earned her master's degree from Emperor's College, her bachelor's degree in Psychology from Loyola Marymount University, and her doctorate from Pacific College of Health and Science, where she focused on women's health, autoimmune conditions, and pain management.
Heather has advanced training in orthopedic acupuncture and dry needling. Her clinical interests include women's fertility, mental health, musculoskeletal injuries, chronic pain, and autoimmune conditions.
Her approach incorporates acupuncture, herbal medicine, cupping, moxibustion, and other complementary therapies.
To schedule an appointment directly with Heather:
Phone: 310-619-6640
Email: heatheralouks@gmail.com
Olga Shemanyuk, DMD
General & Family Dentist | Cape Cod Restorative Dentistry
Dr. Olga Shemanyuk has practiced general and family dentistry since 1996. She earned her first dental degree from State Medical University in Kyiv, Ukraine, and completed additional training in restorative dentistry and endodontics.
In 2013, she earned her Doctor of Dental Medicine (DMD) degree from Tufts University School of Dental Medicine in Boston. Her professional experience includes private practices throughout New England and the Greater Boston area.
Dr. Shemanyuk emphasizes a holistic approach to dentistry, recognizing the relationship between oral health and overall well-being. Her philosophy focuses on providing individualized dental care while considering each patient's broader health needs.
Practice: Cape Cod Restorative Dentistry