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Addiction Medicine Specialist, Psychiatrist, Adolescent Specialist
26 years of experience
License & Identifications

A medical license is required for a doctor to practice medicine in a particular state. Requirements vary by state but most require, at a minimum, post-graduate training in the doctor’s specific specialty. An NPI number is a national identifier unique to an individual health care provider and is managed by the Center for Medicare & Medicaid Services (CMS).

Patient Reviews

Patient comments (3)

The overall average patient rating of Dr. John Ellis is Average. Dr. Ellis has been reviewed by 5 patients who have provided 3 comments. The rating is 2.5 out of 5 stars.

Patient Ratings
Ease of Appointment 3.2
Promptness 2.5
Courteous Staff 2.5
Accurate Diagnosis 2.5
Bedside Manner 2.0
Spends Time with Me 2.5
Follows Up After Visit 2.0

Specialties & Research

  • He has special expertise in 7 areas:
  • Attention Deficit Disorder (ADD) / Attention Deficit Hyperactivity Disorder (ADHD)
  • Bipolar Disorder / Manic Depressive Disorder
  • Depression
  • Depressive Disorder
  • Insomnia
  • Schizophrenia
  • Sleep Disorders

Education & Awards

Dr. Ellis graduated from Louisiana State University at New Orleans.


Dr. Ellis has 6 hospital affiliations:

  • Faulkner Hospital 
  • Beverly Hospital 


  • Spanish

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Additional Information
Dr. John Matson Ellis MD is a male Psychiatrist, has 26 years of experience and practices in Psychiatry and Addiction Psychiatry.
Where does Dr. John M. Ellis practice?
Dr. John Ellis has 6 office locations.
Dr. John Ellis practices Psychiatry and Addiction Psychiatry near Chelmsford, MA.
Additional practice locations include: Abington, MA and Dedham, MA.
See Chelmsford Psychiatrists and Chelmsford Addiction Specialists.