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National Integrated Health Associates (NIHA)
Holistic Integrative Medicine & Dental Center
Leaders in integrative and functional medicine and holistic dentistry, National Integrated Health Associates (NIHA) has been serving the Washington, D.C., Maryland, and Northern Virginia metropolitan area since 1995. Patients come from all over the United States to visit our cutting-edge holistic health care center.
NIHA’s integrative and functional medicine doctors and dentists blend the best of Western medicine and safe, natural therapies for comprehensive holistic treatment to help the body heal. Our practice is unique, offering a wide range of medical and dental services in one convenient location. Our professional health team includes integrative and functional medical physicians, holistic dentist, naturopathic physicians, and health professionals highly skilled in chiropractic, acupuncture, massage, IV therapies, and other healing therapies.
What Patients Say
Great office, best doctors. Dr Kalva is amazing to work with. Appreciate everyone here in the office, so helpful and kind.
Absolutely fabulous place. Best doctors ever.

I have been seeing Dr. Kannankeril for a few years and she is actively helping to get my body balanced and healthy. She listens, is knowledgeable, up to date with new treatments and excellent in her field. I always feel confident in her care that she is supporting me to great health in a personal way.
Dr. Kalva is an EXTRAORDINARY GEM of a doctor. HE IS ONE OF A KIND. He’s compassionate, warm, and highly skilled in functional medicine. He has great knowledge on thyroid issues and progressive treatment. He’s a wonderful communicator with teens and parents. We have been so blessed to find him. His care has been transformative for our family.
Dr. Coy Roskosky is the best Chiropractor I’ve ever been to! I even trusted him working on my children. My son played football and Dr. Coy help tremendously!
This is an excellent dentist office. After moving to the area, I struggled to find a great dentist. Most dentists in the area were still okay with mercury based fillings and routinely told me I had cavities when I suspected that was not true. NIHA provided a healthy experience and in my opinion are much more trustworthy.
Exclusive NIHA Articles
Weight Loss and Mindfulness
Mindfulness Practice has been studied and found to be a useful and therapeutic adjunct in weight loss.[1] As a functional medicine physician, one thing that mindfulness can do that I have found to be clinically very helpful is to direct it at eating itself. A lot of people eat by the “chomp and swallow” technique which causes indigestion and gut dysbiosis.
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A Chiropractor’s Secret to Success in Health, and Anything
I am a Type 1 diabetic and have always had a hard time with my blood sugars and with weight. I’ve tried low carb eating, watching glycemic index foods, tons of exercise: cardio and weight training. They all have had a positive effect on me, but I could not sustain it because I was not getting the result that I was expecting. The rewards of all the hard work were not enough. Yes, my blood sugars were better and my weight would drop anywhere from 5-10 pounds over a three-month period. But those rewards were not enough.
How Do I Reduce the Stress in My Life?
How DO I reduce the stress in my life? This is a popular question and can be approached from many directions. I believe the approach must be developed by you and your integrative medicine practitioner as a collaborative effort. Too often, treatment is based on a...
Health Benefits of Green Juicing
Most of us do not eat enough vegetables each day. One of the best ways to consume more vegetables is to drink them! Freshly made raw, green juice is full of vitamins, minerals and enzymes which can be readily absorbed by your body because they do not need to be broken...
How To Live a More Balanced Life
updated Aug. 31, 2025 A How-To for Creating More Balance in Your Life Living a more balanced life may look different for everyone because balance is in the eye of the beholder. The integrative medicine approach to health and wellness coaching that I practice and...




