Our Team


Christopher Keroack, MD, IFMCP

Chief Medical Director & Chief Executive Officer

As a functional medicine physician, I know that optimal health and balanced living is a realistic goal for every human being at every stage of life. Because of this, I am dedicated to assisting my patients in reaching their full potential in order to pursue life to the fullest. I help guide patients through foundational and personalized approaches to health that focus on dietary guidelines, activity regimens, stress management and sleep management that are specifically designed for each patient. Each personalized health and wellness plan takes into account the five foundational imbalances: Nutrition, Metabolism, Inflammation, Detoxification and Oxidation.
View Dr. Keroack’s full profile . . .

Deborah Tully, MSN, APRN, FNP-C

Deborah Tully, MSN, APRN, FNP-C

Nurse Practitioner

My introduction to healthcare was with outstanding training through the National Ski Patrol. I so enjoyed the camaraderie, as well as having an excuse to ski more, that I continued training to become an instructor. As many of us have (or will) experience a major life event added to planning with aging parents I took the leap to a career change that was for and from my heart. I can say I am a proud graduate of the STCC Nursing Program. After entering the specialty field of neuroscience I achieved certification as a Neuroscience RN. The most recent step was returning to graduate school to complete education as a Family Nurse Practitioner.

I have personally practiced Functional Medicine for about 20 years. My expanding interest in FM is about patient centered care derived through the autonomy and creative planning aspects of listening and attending to patient needs for achieving health, wellness, and disease management.


AFMCP – currently enrolled
APRN – FNP Simmons University
CNRN – Certified Neuroscience Registered Nurse

Modifiable Personal Lifestyle Factors

  • Sleep and Relaxation: I try to keep to a schedule that reflects my body’s natural rhythms; I aim for 8 hours nightly. Sometimes it works and sometimes I play catch up. I am fortunate that I can make up sleep deficits. Everyone knows when I’ve fallen behind.
  • Exercise and Movement: I walk. That is the most consistent exercise besides seasonal sports and a commitment to play outdoors as much as possible. When people ask how I stay so healthy I remind them that I grew up playing outdoors and it remains my favorite.
  • Nutrition: I am a grazer by nature, but never regretted hoarding and eating a giant meal until I am stuffed as a mama bear preparing for hibernation! I ate real local foods growing up although the transition to prepackaged and convenience foods ultimately found their way into the cabinet. My Nona provided the foundation of good foods for a healthy body as well as an introduction into her healing garden. Mother Nature has provided for us as long as we remember she put everything together in a balanced way.
  • Stress Management: Life is hard. Accepting that life has a rhythm and some days we will be challenged more than the day before means that the days filled with benign predictability are really pretty special. I’ve learned to do something special with those days. When times are stressful I practice mindful breathing, meditation, Reiki, and the most fun of all is playing with the dogs.
  • Relationships and Community: I have a network of enthusiasts in each of my activities. I have a few very close and long-time friends. We stay in touch as we can – sometimes daily, but we always seem to know when one of us needs some support. Those relationships endure many ups and downs, successes and heartbreaks, distance, and time. Our spiritual grounding supports our connections and joy as we grow through life.

Lifestyle Education

Stacey Duquette

Lifestyle Educator

I have worked for over 25 years in the fields of Fitness, Massage Therapy, Yoga and Meditation. I am passionate about empowering people to understand and take charge of their own wellness and wellbeing. As a Lifestyle Educator, my role is to support patients’ implementation of their treatment plan and work with them to find ways to make the journey smooth, educational and joyful. In addition to her work at NECFM she maintains a massage therapy practice, teaches Yoga and Meditation and is on faculty with The Hard and The Soft Yoga Institutes Teacher Training Program at Heartsong Yoga in East Longmeadow.


Stacey holds a B.A. from the University of Massachusetts in Theater Arts and Dance. She is a registered Experienced Yoga Teacher with Yoga Alliance (E-RYT 500) and Continuing Education Provider. In addition is she is a Licensed Massage Therapist specializing in Orthopedic Manuel Therapy and a Pilates Trainer.

Modifiable Personal Lifestyle Factors

  • Sleep and Relaxation: I strive to maintain healthy sleep habits. However, with a busy family life and a thyroid condition that sometimes effects my sleep I sometimes struggle with getting the sleep my body needs. When I am low on rest, I try to carve out time in my day for a short nap or a restorative yoga practice. Meditation is part of my daily life that helps me feel centered and relaxed.
  • Exercise and Movement: I am a mover! I was a Contemporary and Jazz dancer since age 4. In my late 20’s I had many dance related injuries that lead me to Yoga, Pilates and eventually more outdoor activities such as hiking, mountain biking, skiing and paddle boarding. I am no stranger to the gym but, prefer to be outdoors and in nature as much as possible.
  • Nutrition: I prefer a plant based, gluten free diet. I maintain a flexible outlook on my body’s changing nutritional needs and appreciate the social aspect of gathering to break bread. When the holidays roll around or there is a special occasion I enjoy indulging a bit.
  • Relationships and Community: I live with my husband, 2 big dogs and am a hockey and baseball Mom to two active boys. We enjoy a very busy and active lifestyle together!

Saskia Coté, D.C.Ed, LMT

Saskia CotéLifestyle Educator

I was called to the Holistic Health field after spending time at the Light Institute in Galisteo, NM and have worked in the field for over 25 years. I have studied Craniosacral and Massage Therapy in both the Netherlands and the U.S. I guide my clients and classes, and run my business with the same energy and intention with which I approach the educational aspects of my work. I am excited to be a part of the team at the New England Center for Functional Medicine.


Saskia Coté graduated from Elfinstone College as a Doctor of C.O.R.E. Education. She is also an Instructor and Licensed Massage Therapist.

Modifiable Personal Lifestyle Factors

  • Sleep and Relaxation: By nature I am an early riser, however my schedule is such that I often work nights. To help balance this I try and meditate daily, making time for silent relaxation.
  • Exercise and Movement: I’m not really a gym person and much prefer to exercise outdoors in whatever form that takes. I enjoy skiing, kayaking, walking, and hiking. I also have a love for kickboxing.
  • Nutrition: I mainly follow a Mediterranean diet with a focus on eating only complex carbohydrates. I keep gluten, dairy, and soy free as well. However, I am sure to follow the 70/30 rule and don’t beat myself up over going off of my nutrition plan.
  • Stress Management: I try to take a few minutes for myself each day to sit and be quiet. This often takes the form of meditation. I also get massages, make sure I exercise, and support my system with supplements that help manage stress.
  • Relationships and Community: Community involvement is very important to me. I serve on the on the Board of Registration of Massage Therapy of Commonwealth of Massachusetts, the Board of Cancer Connection in Northampton, the Professional Advisory Board of the Manual Lymphatic Drainage Institute Int’l, and I volunteer at Square One in Springfield.


Sarah Lloyd

Sarah LloydChief Operating Officer

I have worked with Business-to-Business and Business-to-Consumer entities to help them grow and thrive for more than 30 years. My early training was under the Fortune 500 umbrella and then I crossed over to the consulting side and knew I had found my work “home”. In 1997 I had the incredible opportunity to incubate my own consulting practice for two years and then took it out on my own. Last year I joined New England Center for Functional Medicine as the COO. In its simplest form, I work with Dr. Keroack and the staff to continually improve the quality of our services and the health of our practice.


Sarah holds a B.S. from Springfield College and an Advanced Certificate in Marketing from the University of Hartford.

Modifiable Personal Lifestyle Factors

  • Sleep and Relaxation: Sleep and Relaxation: I have always been a great sleeper and didn’t understand why people had problems sleeping. Then I entered the perimenopause stage of life and became enlightened. I’m naturally an early riser, so I go to bed pretty early, usually by 9:00 pm and get up between 5:30 am – 6:00 am. I’ve learned it’s better to follow my natural rhythm and if I want to go out for a late night I take a nap in the afternoon so I can rally.
  • Exercise and Movement: I love being fit and was an athlete as a child and teenager. I’m not a huge fan of the gym, but I do love walking, yoga, Pilates and kayaking. I try to do something every day to keep my body moving and feeling fluid.
  • Nutrition: As a patient of Dr. K’s I’ve learned a lot about nutrition and what works for me. I follow a gluten and dairy free diet; both of these food groups make me feel crummy. Otherwise I eat mostly a Mediterranean diet. I also know that I don’t do well with high fat foods, so I’ve learned a lot about timing treats. My favorite indulgence is French Fries or a Gin and Tonic. I enjoy every bite or sip and then just continue on my normal plan. (Dr. K. has also helped me learn about supplements that help my system when I do indulge and that’s a game changer!)
  • Stress Management: I’m working on getting better at managing stress. I prefer active relaxation/stress management techniques such as gardening, kayaking, and walking in the woods. I meditate daily. I’m a big fan of baths and go for a massage on a regular basis. Several years ago when my eldest child went away to school, I got my first dog. Having my very own dog has been truly life changing. No matter how a day has gone, she is always right there, happy to see me, snuggle, and be a constant unconditional companion.
  • Relationships and Community: I live with my husband and one of our two daughters and three dogs. (The oldest daughter is launched). We make time almost every morning to have coffee together. We take a few minutes to be together so, as we go off into our very full and busy days we’ve started out connected. We also have dinner together almost every night. Even if it’s only a few minutes long, it’s a good way to close the day. I am very blessed to have extremely close women friends. I make time to share time with these women on a regular basis. On the flip side, I know I need to balance social time with time alone in nature. I regularly spend time in the Adirondacks alone and go on mini retreats several times a year to recharge and rest.

Ellen Moody

Office Manager

I have been working in medical practices for the last 25 years as both the Office Manager and as well a Medical Biller. It’s my responsibility to make sure the practice runs smoothly on a day-to-day basis.


Ellen holds an Associates degree in Medical Record Terminology.

Modifiable Personal Lifestyle Factors

  • Sleep and Relaxation: I try to maintain healthy sleep habits. With a very active life working, grandparenting, and socializing with friends, sleep doesn’t always come first!
  • Exercise and Movement: I try to keep moving and that doesn’t always happen in a “formal” way. I am very active all day long. I make sure that I’m not sitting for long periods at my desk and make a point of taking my dogs for walks almost every day.
  • Nutrition: I try to balance life with proper diet. This means eating breakfast even though I leave early for work, bringing a healthy lunch and making dinner most nights. My husband and I like to eat out at restaurants, so I try to make good choices when we’re out.
  • Relationships and Community: I live with my husband and two dogs. I spend a lot of time with my children and grandchildren, which I really enjoy. My husband and I love sharing time with friends and have a very active social life.

Deirdre Torres

Deirdre TorresFront Desk Receptionist & Scheduler

I’ve worked in customer service for the last 10 years and I genuinely love interacting with people. I have just started my journey in the functional medicine world, and I couldn’t be happier with my career path. Patients’ heads are often spinning with information when they first begin working with Dr. K. and Deb. It is my pleasure to help them take a deep breath and plan for their next step. I am also working towards being a licensed Massage Therapist.

Modifiable Personal Lifestyle Factors

  • Sleep and Relaxation: Sleeping has always been one of my favorite pastimes. Falling asleep comes naturally to me, however getting myself to unwind and fall asleep at a decent time is another story. I try my best to carve out time every day to ground myself through meditation in order to quiet all the noise and set my intentions.
  • Exercise and Movement: Although I am constantly moving, it is not always easy for me to find the time to exercise. That being said, I do my best to get out for walks with my friends or their dogs. I’m a huge dog person! I also enjoy kayaking, hiking, and other outdoorsy activities when the weather permits.
  • Nutrition: I love food and fortunately, I was raised by people who loved spending time in the kitchen! My body runs more efficiently when I stay away from gluten, dairy, and sugar, so I aim to stay on Dr. Keroack’s elimination diet plan with well-balanced meals.
  • Stress management: I have found that I often turn to food when I am stressed out, and not the well-balanced kind! Since I started working in the functional medicine world, I have been working on my self-awareness. When I find myself craving gluten and dairy, I imagine myself eating grilled cheese on sourdough bread. After I wipe the drool, I utilize the tools I have learned from Dr. K.
  • Relationships and Community: It is important to me to have close knit relationships with family and friends. I also value the importance of alone time, even if it isn’t always the easiest task for me. .

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