Summary

Dr. Lassise graduated from the University of Colorado School of Medicine in 1980. He works in Mason City, IA and 2 other locations and specializes in Psychiatry. Dr. Lassise is affiliated with Mercyone North Iowa Medical Center.

Quick Facts

  • accepting new patients
  • 3.9
  • 46 years of experience
  • speaks English, Spanish
  • Mayo Clinic And Medical School
  • 18 written reviews
  • 1 specialty
  • 12 areas of expertise
  • 1 board certification
  • 1 hospital affiliation
  • 3 office locations
  • Male

Office Locations

Dr. Mark Edmunde Lassise has 3 locations

Mason City Clinic

250 S Crescent DrMason City, IA 50401
Mon8:00 am - 5:00 pm
Tue8:00 am - 5:00 pm
Wed8:00 am - 5:00 pm
Thu8:00 am - 5:00 pm
Fri8:00 am - 5:00 pm
SatClosed
SunClosed

Mercyone North Iowa Psychiatry

250 S CRESCENT DR STE 10MASON CITY, IA 50401
Mon8:00 am - 5:00 pm
Tue8:00 am - 5:00 pm
Wed8:00 am - 5:00 pm
Thu8:00 am - 5:00 pm
Fri8:00 am - 5:00 pm
SatClosed
SunClosed

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Dr. Mark Edmunde Lassise, MD
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Dr. Mark Edmunde Lassise, MDVivian Bedu-Addo, PMHNPKrystal Buckridge, FNP, PADr. Barbara Lampert, MD
PsychiatryPsychiatryPsychiatryPsychiatry
Accepts New Patients Accepts New Patients Accepts New Patients Accepts New Patients
3.9 
3.2 
46 Years of Experience 5 Years of Experience 46 Years of Experience
No Virtual Visit Option Virtual Visit Available Virtual Visit Available Virtual Visit Available
Speaks English, Spanish Speaks English Speaks English
Mason City , IAFortworth , TXCanton , OHSan Francisco , CA
Med School: University Of Colorado School Of Medicine Med School: Walsh University Med School: State University of New York College of Medicine
Current Profile
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Insurance Plans Accepted by Dr. Mark Edmunde Lassise

  • Accepts Medicare
  • Accepts Medicaid

Medical Specialties

Dr. Mark Edmunde Lassise has the following specialty

Specialty Expertise

Dr. Mark Edmunde Lassise has the following 12 areas of expertise

  • Attention Deficit Disorder (ADD) / Attention Deficit Hyperactivity Disorder (ADHD)
  • Attention-Deficit/Hyperactivity Disorder (ADHD)
  • Bipolar Disorder
  • Depression
  • Depressive Disorder
  • Insomnia
  • Manic Depressive Disorder
  • Mental Illness
  • Mood Disorders
  • Personality Disorder
  • Schizophrenia
  • Sleep Disorders

Certifications, License, & Education

46 Years Experience

MEDICAL LICENSE

Medical Doctor, Iowa, 2026, Expired

EDUCATION & TRAINING

Residency

Mayo Clinic And Medical School

Medical School

University Of Colorado School Of MedicineGraduated in 1980

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Frequently Asked Questions

Is Dr. Mark Lassise accepting new patients?
Dr. Mark Lassise is accepting new patients on Vitals. View Dr. Mark Lassise's profile on Vitals to make an appointment.
Which hospitals is Dr. Mark Lassise affiliated with?
Dr. Mark Lassise is affiliated with Mercyone North Iowa Medical Center.
Does Dr. Mark Lassise accept my insurance?
You can see the insurance plans that Dr. Mark Lassise accepts on their Vitals profile.
What languages does Dr. Mark Lassise speak?
Dr. Mark Lassise speaks English and Spanish.
Does Dr. Mark Lassise accept virtual/telehealth appointments?
Dr. Mark Lassise has not indicated that they accept virtual/teleheatlh appointments. Contact their office through their Vitals profile to check for availability.

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