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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 (11)

The overall average patient rating of Dr. Stephen Ellen is Good. Dr. Ellen has been reviewed by 30 patients who have provided 11 comments. The rating is 4 out of 5 stars.

Patient Ratings
Ease of Appointment 4.1
Promptness 3.3
Courteous Staff 4.6
Accurate Diagnosis 4.3
Bedside Manner 3.7
Spends Time with Me 4.0
Follows Up After Visit 4.2

Specialties & Research

Dr. Stephen Ellen, MD is board certified in Psychiatry.

  • He has special expertise in 8 areas:
  • Attention Deficit Disorder (ADD) / Attention Deficit Hyperactivity Disorder (ADHD)
  • Bipolar Disorder / Manic Depressive Disorder
  • Depression
  • Depressive Disorder
  • Insomnia
  • Psychotherapy
  • Schizophrenia
  • Sleep Disorders

Education & Awards

Dr. Ellen graduated from Harvard University , Boston. He has 2 awards.

Patients' Choice Award (2010)
Compassionate Doctor Recognition (2010 - 2011)


Dr. Ellen has 6 hospital affiliations:

  • Marlborough Hospital 
  • Tewksbury Hospital 


  • Spanish

> > > > Dr. Stephen Ellen, MD

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Additional Information
Dr. Stephen Ellen MD is a male Psychiatrist, has 22 years of experience and practices in Psychiatry.
Where does Dr. Stephen Ellen practice?
Dr. Stephen Ellen has 1 office location.
Dr. Stephen Ellen practices Psychiatry near Nashua, NH.
See Nashua Psychiatrists.