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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 (16)

The overall average patient rating of Dr. Mark Lassise, Psychiatrist is Good. Dr. Lassise has been reviewed by 24 patients who have provided 16 comments. The rating is 4 out of 5 stars.

Patient Ratings
Ease of Appointment 4.1
Promptness 3.9
Courteous Staff 4.1
Accurate Diagnosis 4.0
Bedside Manner 3.8
Spends Time with Me 3.7
Follows Up After Visit 3.7

Specialties & Research

Dr. Mark Lassise, MD is board certified in Psychiatry.

  • 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. Lassise graduated from University of Colorado, Denver.


Dr. Lassise has 5 hospital affiliations:

  • Mercy Medical Center - North Iowa 
  • Hancock County Memorial Hospital 

> > > > Dr. Mark Lassise, MD

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Additional Information
Dr. Mark E Lassise MD is a male Psychiatrist, has 32 years of experience and practices in Psychiatry.
Where does Dr. Mark E. Lassise practice?
Dr. Mark Lassise has 2 office locations.
Dr. Mark Lassise practices Psychiatry near Mason City, IA.
See Mason City Psychiatrists.