About Us

Areas of Expertise

An internist is a physician who focuses on the diagnosis and treatment of conditions that affect the adult population—both acute and chronic.

These doctors are often who adults see as their primary physicians because they treat a broad range of illnesses that do not require surgical or specialist interventions. They also work to help a patient maintain optimal health in order to prevent the onset of disease.

In addition to treating the common cold and flu, internists also treat chronic diseases like diabetes and heart disease.

Dr. Gnatt participates in the following health plans:

  • Aetna
  • Blue Cross Blue Shield
  • CareFirst
  • Cigna
  • Medicare

The office files insurance claims with these plans, and with all Medicare secondary insurance plans.

Patients with other insurance
If you have other insurance, the office will provide an itemized receipt for you to submit to your insurance for reimbursement. Payment is due at the time of service, and may be made with credit card, cash or check.  Fees are at the prevailing rate, and you are welcome to inquire about our rates before scheduling a visit.  You may also want to inquire with your health plan about out-of-network coverage.

Michael Gnatt, M.D.

Dr. Gnatt is board-certified in internal medicine, with certifications including Advanced Cardiac Life Support Provider and Instructor from the American Heart Association. An experienced medical lecturer and a published writer; he has held academic positions at Columbia University, Georgetown University School of Medicine and George Washington University School of Medicine, teaching medical students in the inpatient and outpatient setting.

Dr. Gnatt is a 1982 graduate of the University of Maryland School of Medicine. He received his post-graduate internal medicine residency training at York Hospital in York, PA. In addition to his ongoing commitment to continuing medical education in general internal medicine, he has expanded his medical skills in post-graduate training with the New York Milton H. Erickson Society for Psychotherapy and Hypnosis Curriculum, the Herbal Medicine Courses at Columbia University, Integrative Medicine Courses with Dr. Andrew Weil and others, level 2 Reiki training with Pamela Miles, Critical Care Medicine with CBC, and training in Allergy with AAAAI and Dr. Dean Mitchell. Dr. Gnatt has more than 30 years practice experience.

After practicing primary care from 1985 to 2008 first in Virginia, then in New York City, Dr. Gnatt practiced as a hospitalist in Maryland, first in Easton, then in Rockville. Dr. Gnatt returned to primary care in 2010, first with Johns Hopkins Community Physicians, then establishing his private practice with Gnatt Medical Associates in 2010.

Primary care, and building relationships with patients, has always been Dr. Gnatt’s mission. He believes the relationships he establishes with patients is essential to delivering the highest level of medical care.

The emphasis on the doctor-patient relationship is a hallmark of Dr. Gnatt’s transition to concierge medicine. As his practice grew over the years, given the demands of the healthcare system, it became increasingly challenging to spend the time with each patient needed to thoroughly address each patient’s concern. Cutting that time – just treating the symptom and moving on to the next person – ran contrary to the way he believes medicine should be practiced. Therefore, he is now offering a membership program which provides more time with each patient, direct availability with Dr. Gnatt and more proactive care with an emphasis on prevention and wellness.