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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
Prediabetes, Protein Metabolism, and Healthy Aging Are Connected
Prediabetes is a diagnosis given to the individuals whose blood sugar levels are higher than normal but have not fully met the diagnostic criteria for Diabetes Mellitus type 2 (DM type 2). At this stage, the patient's fasting blood glucose level is still within...
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The Age of Genetics
Ever since I was a bright-eyed and bushy tailed medical student, roaming the hallowed halls of the University of Virginia Medical School over 40 years ago, the mantra of modern medicine was drilled into my head, that all disease is caused by two factors – genetic...
Anxiety Free Dentistry Without Drugs or Without Going to Sleep
When it comes to sitting in the dental chair anxiety takes many forms- sweating, a queezy stomach or worse. Yet most people have some form of dental anxiety when it comes to dental appointments. Unfortunately, many people take the easy way out by avoiding the dentist altogether. Severe dental infections, great pain, severe tooth, gum or jaw bone damage can result from avoiding your dental health problems.
A Friendly Reminder: Close the Lid Before You Flush
According to a January 2012 study conducted by the Microbiology Department of Leeds General Infirmary in the UK, C. difficile bacteria were commonly spread in hospital bathrooms without toilet seat covers. The report states the bacteria were found in the bathroom air...
Colon Hydrotherapy May Help with Many Illnesses
These testimonials about the value of colon hydrotherapy are incredible! As a colon hydrotherapist and a person who does colonics on a consistent basis, I continue to be amazed at the power of internal cleansing through colon hydrotherapy. This movie trailer debuted...


