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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
POTS Syndrome, an Invisible Disease
Postural Orthostatic Tachycardia Syndrome, or POTS, dizziness upon standing, is often called “the invisible illness” – and nearly every symptom is subjective. It’s important to remember that although dizziness is the trademark symptom, POTS does a lot more than just...
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Genes and Environmental Risks Are the Real Cause of Disease
A quote from the Gene Environment Interaction Fact Sheet [1] from the Centers for Disease Control states that virtually all human… “…diseases result from the interaction of genetic susceptibility factors and modifiable environmental factors, broadly defined to include...
5 Quick Breakfast Ideas for Back to School
It’s that time again! As families gear up for the back-to-school rush—shopping for supplies, filling out forms, and organizing schedules—it’s also the perfect moment to plan quick, holistic breakfast ideas to keep mornings smooth and kids energized. Do your...
Depression: it’s Not What You Think it is
Depression and anxiety have spiked in recent years. But, people may have differing ideas of what depression is, and what causes it. A functional medicine approach to depression helps treat the whole person by addressing the root cause, and the causes may...
Carbs, Belly Fat and Processed Foods: A Link to Diabetes?
In my last blog, “ Is Low Carb for Everyone?”, I spoke about low carb diets and why I believe that everyone can benefit from reducing the amount of carbohydrates in their diet. As a recap, I said that from my unofficial research, it seems as though Americans eating...




