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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
Analysis of a Natural Killer Cell As a Modifiable Factor for Cancer Prevention and Treatment
Natural Killer Cells and Cancer Natural killer cells are a type of lymphocyte, or white blood cell, that is an important component of our immune system. Natural killer (NK) cells play an important role in immune defense against cancer, viral infection and...
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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...
Are You Concerned About Mercury Fillings in Your Mouth?
Recently the Dr. Oz show featured Dr. Joseph Mercola D.O., discussing concern over "silver" mercury amalgam fillings, which contain 50% mercury. Concern for mercury fillings is reasonable because mercury is a toxin, and may affect overall health. Concern for...
Estrogen Dominance Doesn’t Mean What You Think
Estrogen Dominance is a term every woman should be familiar with. Estrogen dominance symptoms can include PMS, infertility, post menopausal symptoms, even breast cancer can often relate to ED. Estrogen Dominance doesn’t mean that a woman is high in estrogen. Rather, it means that the estrogenic effects are stronger than the (counterbalancing) progesterone hormone balancing effects.
Time Out… A Perfect 10 to Enjoy the Moment
Recently, my husband and I hosted a wonderful engagement party at our home for our son and his girlfriend who will be married in the fall. My house was filled with out of town family who stayed for the weekend. My normal routine and eating habits were put on hold from...


