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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
Insomnia and Natural Ways to Improve It
Insomnia is common but there are effective, natural ways to help insomnia. Insomnia can be defined as a problem falling sleep, maintaining sleep, waking up early or poor quality of sleep despite adequate opportunity for sleep. This usually results in some form of daytime challenge or impairment such as sleepiness, low energy or poor concentration. Various studies worldwide have shown the prevalence of insomnia is 10%–30% of the population, with some studies even as high as 50%–60%!
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How the Environment Can Impact Your Health: Phthalates
What's in My Take-Out? While the Coronavirus pandemic has certainly taken its toll on in-restaurant dining, many of us have continued to feel comfortable ordering take out. But leaving aside for a moment the impact on the economy, there are likely health...
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...
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.
The Art of Hormone Balancing
Hormones work together like a beautifully choreographed dance. The thyroid hormones, the adrenal hormones and the sex hormones (estrogen, progesterone, and testosterone) need to be in balance with each other for optimal functioning. Treating a sluggish thyroid is...




