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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
How the Environment Can Impact Your Health: Phthalates
What's in My Take-Out? While the Coronavirus pandemic has certainly taken its toll on in-restaurant dining, many of us have continued to feel comfortable ordering take out. But leaving aside for a moment the impact on the economy, there are likely health...
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Chiropractic Care At-Home 101: Part One
Where do you start when you want to work on your aches and pains on your own? This is the start of a 3 part series on how to address your body’s pain and dysfunction from a very simple approach. It has all to do with posture!
What To Do in a Dental Emergency
When should I call the dentist?
What is a dental emergency?
At Holistic Family Dentistry at National Integrated Health Associates, we get this question all the time, so we thought it would be a good idea to tell you what constitutes a “dental emergency.”
National Integrated Health Associates Welcomes Sherif Hassan, MD, Functional Medicine Physician
NIHA is pleased to announce the addition of Sherif Hassan, M.D., functional medicine physician, to the medical team. Dr. Hassan’s wide and comprehensive experience in medical practice in different international settings coupled with his personal experience as a...
Triggers for a Mold Allergy and 5 Tips that Help
The symptoms of a mold allergy are the same as with any type of respiratory allergy: sneezing, runny nose, itchy eyes/nose/throat, nasal congestion, cough or post nasal drainage, headache, rash, even asthma. Only some types of mold spores actually cause a reaction but...



