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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
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.”
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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...
Step Lightly In To the New Year!
Do you have a plan for what to do when you are faced with a plethora of sweet treats and drinks? In the spirit of good health habits, here are some tips on navigating the holidays so you enter the new year without the guilt (and extra weight).
Dr. Coy Roskosky, DC Chiropractic Care in Washington, D.C.
Dr. Coy Roskosky provides comprehensive chiropractic care using joint manipulation, soft tissue therapies, functional and sports enhancing techniques. As a Doctor of Chiropractic he treats and balances the nervous and musculoskeletal systems to help the body function at it’s highest level.
Re-empowering Parents Through Predictive Genomics
Parenting Has Limits The best-seller and Pulitzer Prize finalist, The Nurture Assumption, Why Children Turn Out the Way They Do, by Judith Rich Harris makes a compelling case, based on sound research on identical twins and other data, that within reasonable...

