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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
Gearing Up for School Days with a Natural Option
How do you plan to keep your children healthy this year? School is starting back up, and our children are in close quarters, touching every surface, wiping their noses on their hands and sneezing everywhere. It seems regardless of how many times you show them how to...
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See Your Dentist. It’s Good for Your Heart!
Heart disease has many contributors to its cause, and any of these contributors may indeed be the cause in any one patient. Contributors to heart disease include obesity, smoking, lack of exercise, genetics, periodontal disease, and other factors. No single factor might be the cause in any one case.
Biofilm, Plaque and Your Dental Health
The plaque that forms on our teeth is a type of biofilm. Biofilm is a collection of many types of bacteria surrounded by a slimy substance that can stick to most everything. Biofilms can be found in our bathrooms, on our kitchen countertops, cutting boards and yes, the kitchen sink.
The Primary Cause of Constipation
What to Expect in a Colon Hydrotherapy Session
Are you interested in colon hydrotherapy, but not sure what to expect? Some people consider colon hydrotherapy a bit of an awkward thing to do. Most people who come in for the first time are a bit nervous, but once they experience the procedure, they can’t believe they waited so long to try it.


