Holistic Integrative Medicine and Dental Center


What is Integrative Medicine?


• Patient-Centered Care - Treats the root cause of illness - Uses all therapies to enhance natural healing

• Disease Management and Prevention - Doctor as partner - Incorporates nutrition, lifestyle, natural and anti-aging therapies

• Treatment of the Whole Person For optimum health and wellness, not just freedom from disease


Leaders In Integrative Medicine, Functional Medicine and Biological Dentistry

National Integrated Health Associates (NIHA) are leaders in holistic & integrative medicine and biological dentistry. NIHA has been serving the Washington D.C., Maryland, and Northern Virginia metropolitan area since 1995, although patients come from all over the United States to our integrative medical and dental center.

Integrative doctors blend the best of western medicine and safe, natural therapies to help the body heal. Our  professional health team is comprised of holistic, integrative and functional medical physicians, biological dentists, a pediatrician, naturopaths, chiropractor, and health professionals highly skilled in acupuncture, nutrition, and other healing therapies, all in one location.

Good health is a choice. Your commitment and dedication to wellness is our priority too.


Holistic Primary Care at NIHA
Our holistic primary care providers look at the whole person: physical and emotional wellbeing, and offer not only traditional primary care but  incorporate healing and complementary and alternative therapies to help you achieve optimum wellness.   Cathlene Heideman NP,  Denia Tapscott MD,   Ching Voss MD and  Dawn Cannon MD, MS will coordinate all your health care needs and therapies in our comprehensive center.
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Integrative Medicine Treats the Whole Person

Integrative medicine looks at the patient holistically, and may assess a patient in different ways in addition to traditional medical examinations and lab tests. These assessments are useful in telling us how the body is functioning, and in identifying  the root cause of your health issue. Identifying and treating the root cause of illness or imbalance  is a tenet of integrative and functional medicine. We offer more treatment options and therapies for healing mind, body and spirit, not just treating the symptoms.

Holistic & Biological Dentistry: Biological dentists use only safe, mercury-free, biocompatible materials and view your oral health as an integral part of overall health. Call 202-237-7000 ext. 2 to learn more about 21st century family dentistry or Request a dental appointment.

Whether you are looking for effective therapies and treatment for pain, illness (cancer, colitis), health conditions (diabetes, thyroid, hormones, autism), disease prevention, or to optimize your current state of health, you can be assured of a new level of compassionate medical and dental care

View the Integrative Medicine Levels of Healing Model

Dr. Voss and Cancer Program

National Integrated Health Associates  5 star on Facebook

NIHA is a best kept secret that needs to be told!! I came to them in January, 2017, with an aggressive breast cancer, triple negative (12 cm tumor), after doing my research and concluding that the treatments they offer would give me my very best hope for survival.

From the moment that Angela (patient coordinator) picked up my first call, I became family. She is extremely knowledgeable, kind, detail oriented and she truly cared! She was the window through which I viewed my possible experience with NIHA, and because of that immediate first impression, that window quickly became the door that welcomed me with open arms. Thank you, Angela!

Because of my condition and the treatments I was discussing with Angela, she felt that Dr. Ching Voss would be a perfect fit for me. She couldn't have been more right!! Dr. Voss is compassionate, meticulous, and leaves no stone unturned in discovering root cause of my cancer and helping me address those issues. Her knowledge and professionalism, combined with her empathy and care, have made my success possible! After my initial visit with Dr. Voss, we both felt that LD/IPT (Low Dose Insulin Potentiation Therapy) would give me a real chance at shrinking my tumor and healing my cancer. This, combined with a huge emphasis on nutrition and supplements, has created an environment that has made healing possible! My tumor has gone down to approx 3cm, broken in pieces and showing necrosis according to my PET/CT scan. And, suspicious lymph nodes and lung nodules showed no tracer, to indicate cancer. Dr. Voss and my team at MD Anderson are calling my results "remarkable"! Not only was I thrilled, the entire team at NIHA was cheering with me. So many amazing people there! From Teresa, the office manager, who has supported me every step of the way, to Vi, who assists Dr. Voss with my IPT, works in the lab and is one of the most compassionate people I've ever met, to Frank who works in the lab and has an amazing knowledge of all things integrative - I couldn't feel more cared for, or more at home! There are too many amazing people to name! I'm actually having a little hiatus, for a couple of weeks, and miss them like family!

Please, please!! If you have any type of diagnosis, be sure to educate yourself in all treatment options! Do yourself a favor and make an appointment with NIHA, as part of that research! They offer real, evidence based, Integrative treatment, therapies and testing, that will address chronic issues you didn't even know you had! This is a true road to wellness! I feel better at 52, than I have felt in a very long time, and am looking forward to complete remission! Thank you to all of the staff! V.G.R. 5/2017