

Dr. Mark Lacy, MD
Dr. Mark Lacy, MD is an infectious disease internist in Great Falls, MT and has over 40 years of experience in the medical field. He graduated from University of Arizona College of Medicine – Phoenix in 1983. He is affiliated with CHRISTUS St. Vincent Regional Medical Center. He is accepting new patients.
Practice
3000 15th Ave S Great Falls, MT 59405Make an Appointment
At a Glance
- Areas of ExpertiseDr. Lacy specializes in the areas of Infectious Disease, Internal Medicine & Pediatrics. • See board certifications
- Good Patient Care

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Dr. Lacy's Reviews
Likelihood to recommend Dr. Lacy
5 star | 25% | 25% |
4 star | 0% | 0% |
3 star | 0% | 0% |
2 star | 0% | 0% |
1 star | 75% | 75% |
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- I didn't feel respected
- Didn't listen or answer questions
- Didn't trust the provider's decisions
- Listened & answered questions
- Explained conditions well
- Trusted the provider's decisions
- Office environment
- Difficult to schedule appointment
- Didn't listen or answer questions
- Didn't explain conditions well
- Staff wasn't friendly
- Appointment was rushed
- Didn't trust the provider's decisions
- Office environment
- Difficult to schedule appointment
- Didn't listen or answer questions
- Didn't explain conditions well
- Staff wasn't friendly
- Appointment was rushed
- Didn't trust the provider's decisions
- Long wait times
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How was your experience with Dr. Lacy?Overall Patient Satisfaction
Likelihood of recommending Dr. Lacy to family and friends is 2 out of 5
About Me
care philosophy
Mark Lacy, M.D., board-certified in Infectious Diseases and Internal Medicine. He practices at University of New Mexico Hospitals. He completed medical school at the University of Arizona college of Medicine, an internship and residency at West...read morebiography
Mark Lacy, MD, board-certified in Infectious Diseases and Internal Medicine.Infectious Disease Medicine
Internal Medicine
*Healthgrades does not verify qualifications for medical specialties. Please verify your provider's specialty and qualifications directly with your provider and applicable medical board.
West Virginia University Hosps, Infectious Diseases West Virginia University Hosps, Internal Medicine
Residency HospitalTrinity International University
2012University Of Arizona College Of Medicine – Phoenix
Medical School, 1983Northern Arizona University
Undergraduate School, 1979
Healthgrades receives board action history for physicians and physician assistants. The information displayed here is sourced from independent information providers, such as state board websites, and may not be the most up-to-date information. Healthgrades makes no representations with respect to the accuracy of any information provided here and assumes no responsibility or liability for such information.
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Affiliated Hospitals
- Recipient of 2
hospital awardsView all patient feedbackHow patients felt about the care they received at this hospital.
80%Patients said they were given information about recovering at home4% lower than the national average
73%Patients said that doctors always listened to them and explained things well3% lower than the national average
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