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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
A Functional Medicine Approach to Hypothyroidism and Weight Gain
Hypothyroidism is common as we age, and a functional medicine approach to optimize the thyroid will help the body with several important body processes. Functions that were normal earlier in life such as hormone production are one of the most important and the thyroid...
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NIHA Welcomes Dr. Girish Kalva, Functional Medicine Physician
National Integrated Health Associates (NIHA) is pleased to announce functional medicine physician Girish Kalva, MD, has joined our integrative medical team. Dr. Kalva is a medical doctor board certified in both Internal and Obesity Medicine. He comes to NIHA with 25...
Mindfulness and Boredom
"In order to live free and happily, you must sacrifice boredom. It is not always an easy sacrifice.” ~Richard Bach - Illusions (1977) If I recall accurately – despite the handicap of a 70-year-old brain – when I read the book Illusions over 40 years ago, the...
Grief, Mindfulness and Healing – The Passing of Dr. Voss
This week I experienced deep grief with the passing of my dear colleague, Dr. Voss. Her passing, like any death, provides us with a moment to reflect on our lives and our purpose for being here in our temporary bodies. We must all face the ending of our physical body...
Mold Allergy Symptoms Seen in Fall
Fall is the season for mold allergies and seasonal mold allergies can be experienced from mid-August until mid-December. They may subside as the cold weather starts, or flare up when the weather is damp and rainy. And, a mold allergy can be year-round if you are...




