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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
Best Calorie Swaps for Summer Favorites
Making small calorie swaps is a powerful way to enjoy summer favorites. You can do this without compromising your wellness. These options are gluten-free, dairy-free, and inspired by whole-food, plant-based meals. They are nutrient-dense, vibrant, and perfect for hot...
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Extreme Heat Safety: How to Prevent Heat-Related Illness
With day after day of extreme heat facing us again, it’s important to recognize who’s most vulnerable—and how to protect yourself and others from heat-related illness (HRI). Who Is Most at Risk for Heat-Related Illness? Certain groups are especially vulnerable to...
What is Low Stomach Acid and Can it Cause Weight Gain?
Low or no stomach acid in medical jargon is called “hypochlorhydria or “achlorhydria” respectively. Low stomach acid can lead to weight gain, among other issues. Common Misconceptions about Low Stomach Acid Symptoms of low stomach acid match those of high...
Chronic Pain Relief: A Comprehensive Approach
Chronic pain, by definition, is pain that is present for longer than three months, which is generally accepted as the expected tissue-healing timeline. However, more commonly, the pain has been present for several months or even years.
The Secret Sauce to a Healthy Body
We are now fully into the New Year and one of the more common resolutions of the year is to take care of our health. We want to be more physically fit and have more energy. This usually means more exercise, stretching and better eating/sleeping habits. So, we whole...




