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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
How Chronic Inflammation Affects the Body
Chronic inflammation can play a major role in the development and progression of disease. If the cause of inflammation is not identified and treated properly it can have deleterious effects on the body in general and can lead to premature aging. A functional medicine...
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Intermittent Fasting…It’s Not a Diet, It’s a Lifestyle
Many dietary fads come and go but intermittent fasting is here to stay. Humans have been using this eating technique for ages in virtually every major religion in the world for cleansing and purification purposes. The ancient Greek writer and historian, Plutarch,...
Do You Suffer from Estrogen Dominance? Take the Questionnaire
Estrogen Dominance and adrenal fatigue are very similar in their symptom presentation. Symptoms may include: weight gain, hot flashes, poor sleep, fatigue, and irritability. Most women who have one tend to have the other to some degree. Most estrogen dominance is due to insufficient progesterone and therefore there is low cortisol production. When the adrenals are stressed, the
8 Natural Ways to Detox Your Body
We are exposed to toxins daily in our fast paced, modern world. Personal care products, cell phones, microwaves, wireless electronics, processed foods, plastics, cleaning products, carpet, water, and food may contain chemicals or emit electromagnetic frequencies. So,...
Natural Dental Products for Healthy Teeth and Gums
Natural dental products can enhance daily home care for our teeth and gums. This is important and not just for the obvious reasons of keeping our teeth for a lifetime and not having bad breath, but a healthy mouth contributes to overall good health. Believe it or not, when we are taking care of our teeth and mouth we are taking steps to a healthy body.



