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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
Under Pressure: How Hyperbaric Oxygen Therapy HBOT Can Promote Healing
Hyperbaric oxygen therapy, or HBOT, is the infusion of pure oxygen deep into the tissues of the body to promote healing. Oxygen is essential for life and can provide many health benefits. There is a growing interest in hyperbaric oxygen chamber treatments as athletes...
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Emotional Healing and Cancer
How Prolonged Stress and Inner Conflicts Contribute to the Illness Process As part of the Integrative Cancer approach at NIHA, we look for any inner conflict and any prolonged stress a person may have because we know it may result in profound changes in the physical...
Why Vitamin D is So Important
Vitamin D is essential to health! It a substance that we cannot function well without. It is common knowledge that the body makes its own Vitamin D when the skin is exposed to sunlight. It is that form that we use most efficiently. While Vitamin D supplements are...
Having Gastrointestinal Symptoms? Check for Parasites
Symptoms of Parasites May be Hard to Detect Parasites evade detection and diagnosis better than most human pathogens, explaining why some healthcare professionals deny their existence or clinical relevancy. Since diagnostic tests are often falsely negative or...
Functional Medicine: A Distinctly Different Kind of Medicine
Functional Medicine, which is neither Conventional nor Alternative Medicine I have practiced functional medicine since it was invented over 30 years ago and during these decades I have reluctantly tolerated and overlooked being mislabeled as an “alternative medicine[1]” doctor. Healthcare consumers and practitioners alike often fail to recognize that functional medicine has virtually nothing […]




