WILLIAM WILLIS, M.D.
Functional Medicine MDs
Focusing on root causes to support long-term wellness and vitality.
Credentials & Training
Federally verified- Credential
- MD
- Graduated
- 1988
- Medicare specialty
- Anesthesiology
- Group practice
- Anesthesia Associates of Morristown PA · 168 clinicians
- Medicare assignment
- Accepted — bills the Medicare-approved amount as payment in full
Sourced from the CMS Doctors & Clinicians national file, last checked October 2026.
About
Located in Denville, New Jersey, this practice focuses on functional medicine principles. The approach emphasizes identifying and addressing the root causes of health imbalances rather than just managing symptoms.
Functional medicine encompasses a broad scope of care, looking at the interconnectedness of body systems, nutrition, lifestyle, and environmental factors. It is often utilized for complex, chronic complaints that have not responded to conventional treatments.
The practice accepts Medicare and operates within a group setting. Patients should inquire directly regarding current payment options.
Areas of Focus
Conditions Treated
Specialties
Patients Served
Frequently Asked Questions
What is the difference between functional medicine and conventional medicine?
Functional medicine focuses on identifying and addressing the root causes of health imbalances by looking at the interconnectedness of body systems, nutrition, lifestyle, and environmental factors.
Does this type of care treat acute illnesses?
Functional medicine is often utilized for complex, chronic complaints rather than acute illnesses.
Does the provider accept Medicare?
Yes, the provider accepts Medicare.
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