Dr. Mark CarlsonMD

Internal Medicine

at Mark Carlson, MD — Sioux City, IA

About

Dr. Mark Carlson has practiced internal medicine in Sioux City, Iowa since 1989, bringing more than three decades of clinical experience to his patients. He earned his medical degree from the University of Minnesota, completed his residency at Abbott Northwestern, and trained at the Minneapolis Heart Institute. He holds board certification in internal medicine and brings additional expertise in lipidology.

Dr. Carlson has taken on significant leadership roles throughout his career. He founded Sioux City Hospitalists at St. Luke's Regional Medical Center and served as its medical director. He currently directs both the Siouxland Adult Medicine Clinic and the Siouxland Executive Wellness Center. His clinical passions include cardiovascular risk prevention, advanced lipid management, osteoporosis, diabetes, and hypertension. He regularly lectures on internal medicine topics at venues across the country. His approach to care centers on positive lifestyle choices and the thoughtful application of clinical guidelines in medication management.

Education & Training

Medical School

University of Minnesota

Residency

Abbott Northwestern

Fellowship

Minneapolis Heart Institute

Certifications

Board Certified in Internal Medicine

Conditions Treated

diabetes
hypertension
high cholesterol
heart disease
cardiovascular disease
osteoporosis
lipid disorders
sinus infections
lung disease
respiratory illnesses
sleep disorders
joint conditions

Who is Dr. Carlson right for?

Dr. Carlson is a strong fit for adults managing complex or chronic conditions such as diabetes, hypertension, high cholesterol, or cardiovascular disease. Patients who want proactive prevention alongside treatment of existing conditions benefit from his comprehensive approach. His expertise in lipidology and osteoporosis makes him well suited for patients with metabolic or bone health concerns. Adults seeking a physician who monitors results closely and remains reachable outside of office hours will find his practice a good match.

Frequently Asked Questions

Dr. Carlson specializes in cardiovascular risk prevention, advanced lipid management, diabetes, hypertension, and osteoporosis. He also treats a broad range of adult conditions including respiratory illnesses, sinus infections, sleep disorders, and joint conditions. His lipidology background gives him particular depth in managing complex cholesterol and lipid disorders.

Yes, Dr. Carlson holds board certification in internal medicine. He also brings specialized training in lipidology, reflecting his deep focus on cholesterol and cardiovascular risk. He completed his training at the University of Minnesota, Abbott Northwestern, and the Minneapolis Heart Institute.

Dr. Carlson earned his medical degree from the University of Minnesota. He completed his residency at Abbott Northwestern and pursued further training at the Minneapolis Heart Institute. This foundation in academic and cardiovascular medicine informs his clinical approach today.

Dr. Carlson has practiced internal medicine in Sioux City, Iowa since 1989. That tenure spans more than three decades of patient care, clinical leadership, and specialty expertise in the Siouxland community.

Dr. Carlson founded Sioux City Hospitalists at St. Luke's Regional Medical Center and served as its medical director. He currently serves as medical director of both the Siouxland Adult Medicine Clinic and the Siouxland Executive Wellness Center. These roles reflect his long-standing commitment to advancing medicine in the region.

Dr. Carlson places strong emphasis on prevention. His goal is to help patients stay as healthy as possible for as long as possible, not simply respond to illness after it appears. He builds personalized wellness programs for each member and monitors results regularly to identify issues early.

Dr. Carlson takes a thoughtful, evidence-based approach to prescribing. He emphasizes positive lifestyle choices alongside clinical guidelines, aiming to use medication prudently rather than reflexively. He takes time with each patient to discuss options and rationale before making treatment decisions.

Dr. Carlson focuses on adults and adolescents over age 18. As a board-certified internist, he specializes in adult medicine rather than pediatric care. His practice serves the full spectrum of adult health needs, from routine prevention to complex chronic disease management.

Doctor profile last updated April 10, 2026