Our Team

Constantine A. Kotsanis, MD, Medical Director

Board Certified Otolaryngologist, Certified in Clinical Nutrition

I was born in Greece and came to the states as a teenager. My family settled in Chicago, where I attended Austin High School and went to Northern Illinois University (go Huskies!). I then returned to Greece for medical school at the University of Athens. I did my specialty training in otolaryngology, head and neck surgery at Loyola University of Chicago which is when I met and married my wife Beverly.

Life has always been an adventure. Bev and I have two wonderful children, Andrew and Katerina who add spice to an already busy schedule. Both of the kids have participated in the practice over the years, and someday I hope one or both of them can take it over.

Although I began my medical career quite conventionally, at one point some years after beginning medical practice I began to experience health problems. After extensive testing I was told nothing was wrong with me. All I knew was that I was in pain, fatigued and experiencing severe gastrointestinal issues. This experience taught me that sometimes you have to look for answers in less conventional places. This was before Google existed and before the Internet was readily available to most people. I had to find my answers the old fashioned way – books, journal articles and other sick people.

I come from a large family. My father was the eldest of 18 siblings and I am the youngest of seven, three brothers and four sisters. As you can imagine, with a family that large, and with people as mobile as they are these days, we now have family all over the world. So we travel often to visit the many friends and family we have amassed over the years. While traveling we always connect with local medical people and learn what they are doing. We love exchanging ideas. Bev and I are also conference junkies. Being up on trends and new research findings is important, so our travels help us learn while we catch up with people. Additionally, because my patients know that we are open-minded and interested in new technologies, they are constantly bringing us new information.

Although we keep an open mind, a certain degree of skepticism should always exist to balance the enthusiasm that may come with an idea that sounds too good to be true. Because we still ask a lot of questions, we do some original research in house to test and research new ideas before offering these to patients. We have done, and continue to do clinical trials in house under Investigational Review Board (IRB) guidelines. These studies have brought important findings that are then shared with other health professionals. In addition, our contribution to our local community includes various types of interns who spend time learning and doing projects in our Institute. These range from short high school projects to lengthy one-year studies at the post-graduate level.

We always look forward to the next challenge and hope you will decide to become a part of the family of patients and professionals who will help lead us into a healthier and brighter future.

Beverly Kotsanis

Chief Executive Officer

I’m Beverly Kotsanis and I have been Operations Manager since we opened our doors in Texas in 1983. I have a Bachelor of Science degree in psychology from Loyola University of Chicago and have attended postgraduate studies in business at Rosary College, River Forest, IL and at Southern Methodist University in Dallas, TX. I love this place. There is always something new to learn and the patients are fascinating. Our team is awesome and they are really more than just a team. Over the years they have become my family. As a matter of fact we have several family traditions going here. Jana and Lindsay are mother and daughter, and of course I am “married to my job,” having worked with my husband now for over 27 years. I wouldn’t have it any other way. We always celebrate each other’s birthdays, weddings, anniversaries (and sometimes divorces). Everyone on staff who has children has had one or more of them work in our office at some time or another. Who says you can’t pick your family!

Read Beverly’s White Paper on the future of medicine.

Stefani Wooldridge RD, CLT

Stefani’s great passion in life is assisting others to feel healthier, live healthier and to embrace the many wonderful benefits of mental and physical wellbeing. She believes that everyone can feel great and have more energy by incorporating healthy foods and moderate exercise into their busy lives. This isn’t always easy to do, that’s why she is here to help.

Stefani understands that each person is unique with specific goals and nutrition needs. Her nutrition philosophy is one that looks at the total person. Not only dietary intake and supplements; but lifestyle, prevention, and the use of natural therapies.

Stefani is a Registered Dietitian who received her degree from Texas State University in Nutrition and Dietetics and completed her postgraduate work through Iowa State University. She is also a Certified LEAP Therapist specializing in food sensitivities. Stefani continues her education in Functional Nutrition focusing on wellness, gastrointestinal distress, autoimmune diseases, heart disease, diabetes, and food sensitivities. She is a member of the Academy of Nutrition and Dietetics as well as the Sports, Cardiovascular and Wellness Nutritionists, Dietitians in Integrative and Functional Medicine, and Nutrition Entrepreneur dietetic practice groups.

“It’s not about the quick-fix, it’s about everlasting health. “Don’t find the way, find YOUR way.”

Jana Miller

Clinical Staff CoordinatorI’m Jana Miller and I am the Clinical Coordinator. I am certified as a Clinical Medical Assistant and am also a Licensed Massage Therapist. I support our clinical team and also have direct contact with the patients during treatments. I have been with Dr. Kotsanis since 1988. My staff and I regularly attend continuing education courses to keep on top of the changing landscape in all the different diagnostic categories that we treat . The people who work with us are family, and we hope that when you become a patient here you will feel like family too.

Pam Rust

AdministrationI’m Pam Rust and I love children. Every day as a Clinical Medical Assistant here brings something new and wonderful. You never know what the kids are going to say. They keep me on my toes and keep me laughing. Over my 17 years working with Dr. Kotsanis and our team, I have met hundreds of kids and adults from all over the world. I regularly attend continuing education meetings and meet new people. As a native of Ft. Worth, TX, I never expected I would meet so many different kinds of people. We really get to know our patients. I love every minute.

Janet Robinson

Administrative Bookkeeper

I started with Dr. Kotsanis in December of 2009 and have enjoyed every minute of my work with the staff. They are such a kind group of people. I do the bookkeeping and keep track of such things as inventory and overhead costs. I work closely with Beverly to keep costs under control so we can make sure we keep our fees reasonable for our patients.

Karey Choy

Marketing Assistant

My name is Karey and I am the Marketing Assistant for the Kotsanis Institute.   I have thoroughly enjoyed my time here and I learn something new every day.   I attended the University of North Texas where I earned a Bachelor’s Degree in Psychology with a minor in Marketing.  I live in Lewisville with my three rescue dogs and husband. Some of my hobbies include cooking, shopping, reading, traveling, and spending time with family and friends.

Darla Tucker

Project Manager

I am the Project Manager at Kotsanis Institute! I graduated from the University of North Texas with a Bachelor of Science in Rehabilitation Studies and a minor in Spanish. I recently married my husband, Drew, who shares a passion for health and fitness with me. I love working at Kotsanis Institute because I really believe in alternative medicine. When you address the body as a whole and give it what it needs, it can do amazing things. I aspire to be a Registered Dietician in the future and help people wherever I go as I travel around the world. I enjoy organizing, singing, game nights and making people laugh!

Adriana M. Saldivar

Medical Administrative Assistant

I am a Medical Administrative Assistant here at the Kotsanis Institute. At the age of 17 I joined the Army Reserves where I gained valuable skills and made life-long friends. I later moved to Phoenix Arizona where I graduated as a Certified Medical Assistant, and where I also became a mother to a baby boy. After I moved back to my home state of Texas, I joined the Kotsanis Institute in late 2014. I hope to further my education to be able to work more closely with special needs children.

Sarah Merchant

Patient Care Manager

My Name is Sarah Merchant and I am Dr. Kotsanis’s Patient Care Manager. I coordinate our new patients with testing and treatments and I design protocols for them with Dr. Kotsanis to get them started on their wellness journey.

I graduated from The University of Texas at Arlington with a Bachelor’s of Science in Psychology and a Bachelor’s of Science in Biology. I am hoping to go to Medical school in the future and help treat underserved populations.

Ebone Box

Medical Assistant

My name is Ebone and I am one of Dr. Kotsanis’ Clinical Medical Assistants.I have been with the Kotsanis Institute since April 2017 and have enjoyed everyday of my work with the staff and the patients. I graduated from Remington College with an Medical Assistant degree. I am hoping to further my education in the medical field to work more closely with cancer patients.

Bree Newton

Emergency Medical Assistant

Hey there! My name is Breanna, but everyone calls me Bre. I find my full name a little formal, but either one works. I worked as a Firefighter/EMT for 3 years while going to school in Colorado. I initially was going to be a nurse, but found my passions for the prehospital world irresistible. Kotsanis Institute and all the clients here have been so wonderful to accept me and my unusual set of skills into the clinic with welcoming arms. The experience here has broadened my level of critical thinking and allowed my scope of practice to be expanded greatly. It is a blessing to be surrounded by such an uplifting group of people, staff and clients all. I aspire to pursue my passion of emergency medicine further with more knowledge and education.

A little more about me personally, I am an outdoors woman. Anything outside and I will certainly try it. I have been skiing, rock climbing, ice climbing, rappelling, camping and all sorts for many years. Now, I am blessed to share them with my wonderful fiancé and his two amazing kids, our sons Jackson and Jonathan.

Nicole Miranda

Medical Assistant

I graduated from nursing school in Brooklyn, NY in 2004 with a 3.89 GPA. I graduated in the top 20 of my class with an associated degree in medical assisting, as well as a degree in Phlebotomy, EKG, and Ultrasound. I moved to Texas in 2009 where I was able to expand my medical experience. I carry 14 years of experience with a surgical background. My areas of practice are medical assisting teacher, wound care, infertility, pain management, rheumatology, colorectal, ENT, foot and ankle, and the greatest place of all, the Kotsanis institute.

Lindsay Kirkwood

Registered Nurse

Hi! My name is Lindsay Kirkwood and I am a part of the clinical staff. I have been with the Kotsanis institute since 2008. My passion is to help our patients heal and achieve an improved quality of life. At Kotsanis Institute, we take pride in our positive, family oriented atmosphere. We aim to find the root cause of your illness and help improve your health vs masking your symptoms.

I have a Bachelors of science in child development as well as Bachelors of science in nursing. I have two wonderful children Clara and Conway. My husband and I enjoy spending time with our kids at the lake and are avid boaters.

Tanya Merrit

Registered Nurse

My name is Tanya Merritt. My work background and passion is functional medicine. After earning my nursing degree in Florida, I worked in the emergency department and quickly realized how important it was for me to get back to helping people find and achieve optimal health. I moved back to Texas in December 2017, to be with my boyfriend and family and began my search for a position at a functional medicine private practice. I was fortunate to find Kotsanis Institute and joined the team in January 2018. I am grateful I found my new “work” home with Kotsanis Institute as part of their clinical staff. We have an amazing team as well as a great group of patients. Now that I am back in Texas, I feel like my life has come full circle… I know I am where I was meant to be in my personal and work life.

I love spending quality time with my boyfriend and family. I enjoy biking, hiking, camping, and pretty much anything outdoors. I don’t have any children, but have a cat named Mr. Chan, who thinks he is a dog. I am constantly researching and learning about new advances in functional medicine to help my patients achieve health and wellness.

“Take chances without expectations… Don’t become attached to the outcome and you will never know failure. Keep moving forward no matter how long it takes you to reach your goal”. -Tanya Merritt

Suzy Edmonson

Occupational Therapist

Suzy Edmonson has been an occupational therapist for more than 30 years, currently working in oncology.  Suzy has been practicing complementary methods to promote health and relaxation for 19 years, and is a massage therapist, yoga teacher, touch therapy teacher, a Live Food & Lifestyle Instructor certified by holistic physician Gabriel Cousens, at the Tree of Life Rejuvenation Center. The lifestyle program Suzy teaches has been instrumental in her recovery from autoimmune arthritis.  The program is also very helpful for cancer patients and in assisting in recovery from many other health conditions, such diabetes and heart disease.


Nakos Kotsanis

Micronutrient-Phytochemical Anticancer Researcher

I am here to keep Dr. Kotsanis well informed and scientifically documented thru Pubmed articles concerning integrative medical literature. Due to my scientific interest in Vitamin C and cancer, I have the contacts that I make with great scientists who are experts in Vitamin C research and its usefulness in health and medicine, i.e. Dr. Hickey, Dr. Lawson at Oregon State University, Dr. González-Guzmán, Dr. Levy,  and of course Greek scientists that support us. I also advise and inform with the guidance of Dr. Kotsanis’ people, who with their consent, would like to learn on how to prevent or approach adjuvantly an illness such as cancer through our Actouarios Nutritional Therapy (research and anecdoctal observations).
In addition, I give talks on behalf of the Institute on integrative medical to doctors and scientists and “open to the audience” seminars to make them understand the usefulness of micronutrients and phytochemicals on health and quality of life.  I also continue updating the Actouarios protocol according to recent scientific data – patient’s feedback – personal contacts so as to exchange ideas apart from the literature research that never stops.
I believe in keeping us internationally known and to make the public here in Greece become aware of the effort and dedication that my mentor, Dr. Kotsanis, has been putting into integrative medicine the last 30 years.  For me it is a great honor working beside him.

“Excellence is never an accident. It is always the result of high intention, sincere effort, and intelligent execution; it represents the wise choice of many alternatives – choice, not chance, determines your destiny.”


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    Located in Grapevine, Texas, and close to Dallas Fort Worth Airport (DFW), we provide medical services to patients living outside of country and outside Dallas. Many of our patients come from the surrounding cities of Dallas, Fort Worth, Tarrant, Colleyville, Bedford, Euless, Irving, Coppell, Flower Mound, Lewisville, Southlake, Westlake, Trophy Club, North Richland Hills and Park Cities. Now serving zipcodes but not limited to 76051, 75063, 75038, 75062, 75019, 75067, 76155, 76092, 76034, 76021, 76039, 75022, 75028, 76262, 76262, 76180.

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