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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
Symptoms of PANDAS or PANS in Children
As a holistic & integrative pediatrician, I see many children with behavioral and psychological issues. A significant part of my evaluation for these patients includes a work up to see if there is the presence of PANDAS (Pediatric Autoimmune Neuropsychiatric Disorders Associated with Streptococcal Infections) or PANS (Pediatric Acute-onset Neuropsychiatric Syndrome). PANDAS is a complex disorder that can occur suddenly and appears to be more common in boys. The symptoms can be behavioral and physical, and can be debilitating.
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What You Should Know About Periodontal (Gum) Disease
Gum disease, or periodontal disease, is the major cause of tooth loss. The foundation of biological dentistry is to promote a healthy mouth. When the mouth is in a healthy state the gums are pink and attached to the roots. The roots are strong and completely surrounded by bone. There is no inflammation and rarely is there bleeding; imagine a sturdy new fence post that has just been placed in the ground. If you are following a daily regimen that involves brushing and plaque removal from the area around and in between the teeth there is a good chance that your mouth is in a healthy state.
What is Functional Medicine?
Updated June 12, 2025 Functional Medicine Defined Functional medicine searches for the underlying imbalance, or root cause, which can contribute to illness or chronic disease. Special lab diagnostic testing, called functional testing, help identify and correct...
Estrogen Dominance and PMS
Updated April 15, 2024 Estrogen Dominance and PMS: Symptoms of Premenstrual Syndrome For some of us PMS, or premenstrual syndrome, might be the day before the period starts and for others the whole preceding week. And we know the symptoms… Most women know when their period is coming because things change; breasts get tender, the […]
The Ancient Art of Colon Cleansing, or Colon Hydrotherapy
The practice of intestinal cleansing is not a new one, not by a long shot. Flushing away excess waste through enemas has been around since ancient times in Egypt. The practice of administering enemas was recorded in the medical document "Eber Papyrus" in 1500 B.C....




