Our Team

Specialists in Reflux & Heartburn.

The Minnesota Reflux and Heartburn Center has a staff of highly trained and experienced physicians specializing in reflux who are assisted by physician assistants, nurse practitioners, nurses, dietitians, and technicians to provide the best service for patients. They provide patients suffering from reflux disease and heartburn with clinical excellence and compassionate understanding.

The team is dedicated to the treatment of heartburn, acid reflux, and other disorders in a highly specialized treatment center with the latest diagnostic equipment. The physicians are renowned for their expertise in advanced minimally invasive reflux surgery.

Timothy P. LeMieur

MD, FACS

Specialties:

Anti-reflux Nissen fundoplication and LINX procedures
Laparoscopic gastric procedures
Laparoscopic oncologic procedures
Endoscopic procedures
Vascular procedures

Sees patients at:

Cuyuna Regional Medical Center, Crosby
Riverwood Healthcare Center, Aitkin

Board Certification:

Surgery

Education:

Medical Degree, University of Minnesota Medical School, Minneapolis
Bachelor of Science Degree in biology, St. John’s University, Collegeville, Minn.

Residency:

Hennepin Residency Center Program in 1999

Memberships:

American College of Surgeons Young Surgeons Committee
Minnesota Surgical Society board member
President of the Hitchcock Surgical Society at Hennepin County Medical Center
Minnesota Institute for Minimally Invasive Surgery surgical fellowship faculty
State Trauma Advisory Council
Rural Physicians Associate Program primary surgical preceptor
Riverwood Healthcare Center board member

Awards:

American College of Surgeons Outstanding Young Surgeon

Andrew Loveitt

D.O.

SPECIALTIES:

Anti-reflux procedures
Laparoscopic gastric procedures

SEES PATIENTS AT:

Cuyuna Regional Medical Center, Crosby
Riverwood Healthcare Center, Aitkin

Board Certification:

General Surgery, American College of Osteopathic Surgeons

Education:

Doctor of Osteopathic Medicine, University of New England College of Osteopathic Medicine, Biddeford, Maine
BS degree, Juniata College, Huntingdon, Pennsylvania

Residency:

General Surgery, Rowan University, Stratford, New Jersey

Fellowship:

Laparoendoscopic Surgery, Minnesota Institute of Minimally Invasive Surgery, Aitkin/Crosby, MN

Awards:

Master Surgeon in Robotics, Surgical Review Committee

Howard M. McCollister

MD, FACS

Specialties:

Reflux and Heartburn Management
Anti-Reflux and Foregut Surgery
Bariatric Surgery
Advanced and Revisional Minimally Invasive Surgery
Laparoscopic Colon Surgery
Flexible Endoscopy

Sees patients at:

Cuyuna Regional Medical Center, Crosby
Riverwood Healthcare Center, Aitkin

Board Certification:

Surgery

Education:

Medical Degree, University of Nebraska College of Medicine
Bachelor’s Degree, University of Nebraska-Lincoln

Residency:

University of Nebraska Medical Center

Memberships:

American College of Surgeons, Fellow
American Society of Laparoendoscopic Surgeons
Society of American Gastrointestinal and Endoscopic Surgeons
American Society of Metabolic and Bariatric Surgeons, Minnesota Chapter Past President
University of Minnesota Medical School Rural Physician Associate Program, Preceptor
Minnesota Institute for Minimally Invasive Surgery, Director
MIMIS Fellowship in Advanced Minimally Invasive Surgery, Bariatric Surgery and Flexible Endoscopy, Associate Program Director
Director, MIMIS Bariatric Division
Chief of Surgery, Cuyuna Regional Medical Center

Shawn Roberts

MD, FACS

Specialties:

Reflux Management
Surgical Management of Cancer
Vascular Surgery
Advanced Laparoscopy
Surgical Weight Loss

Sees patients at:

Cuyuna Regional Medical Center, Crosby
Riverwood Healthcare Center, Aitkin

Board Certification:

Surgery

Education:

Bachelor’s Degree in Biology, Concordia College in Moorhead (Summa Cum Laude)

Residency:

Hennepin County Medical Center

Memberships:

American College of Surgeons State Committee on Trauma
American College of Surgeons Oncology Committee
American College of Surgery state and local committees on Trauma

Awards:

Alworth and Faculty Scholar Academic Awards

Paul A. Severson

MD, FACS

Specialties:

Gastro-esophageal Reflux Disease
Weight Loss Surgery
Revisional Laparoscopic Surgery
Laparoscopic Colectomy
Minimally Invasive Varicose Vein Surgery
Minimally Invasive Hemorrhoid Surgery
Endoscopic Carpal Tunnel Release
Therapeutic Endoscopy
Missionary Medicine

Sees patients at:

Cuyuna Regional Medical Center, Crosby
Riverwood Healthcare Center, Aitkin

Board Certification:

Surgery

Education:

Bachelor of Arts and Doctor of Medicine degrees, University of Minnesota

Residency:

Hennepin County Medical Center

Memberships:

American Board of Surgery, Diplomate
American College of Surgeons, Fellow
University of Minnesota Medical School Rural Physician Associate Program, Professor
Minnesota Reflux and Heartburn Center, Director
Minnesota Surgical Society, Past President
Hitchcock Surgical Society, Past President
Minnesota Chapter of the American Society of Metabolic and Bariatric Surgeons
Project Haiti, Inc., Founder and President
MIMIS Fellowship in Advanced Minimally Invasive Surgery, Bariatric Surgery and Flexible Endoscopy, Program Director
Fellowship Council Board of Directors
Society for Gastro-intestinal Endoscopic Surgeons
SAGES Global Affairs Global Surgical Curriculum

Awards:

Society of American Gastrointestinal Endoscopic Surgeons (SAGES) Award for Excellence in Humanistic Clinical Care Minnesota Medical Association Community Service Award
University of Minnesota Distinguished Alumni Award
University of Minnesota Duluth Clinical Teacher of the Year

Melissa S. Dyrdal

MSN, RN, APRN FNP-BC

Specialties:

Reflux and Heartburn
Bariatrics
Family Practice

Sees patients at:

Cuyuna Regional Medical Center, Crosby

Certification:

National certification from the American Academy of Nurse Practitioners
Public Health Registered Nurse
High Resolution Manometry
pH/pH Impedance

Education:

Master of Science degree in Nursing/Family Nurse Practitioner, College of Saint Scholastica
Bachelor of Science degree in Nursing, College of Saint Scholastica

Memberships:

American Academy of Nurse Practitioners (AANP)
American Foregut Society (AFS)
American Neurogastroenterology and Motility Society (ANMS)
Minnesota Nurse Practitioner Association (MNNP)
Society of American Gastrointestinal and Endoscopic Surgeons (SAGES)

Lea Carlson

RN, Nurse Coordinator

Specialties:

Reflux and Heartburn Management
Bariatric Surgery

Sees patients at:

Cuyuna Regional Medical Center, Crosby

Education:

Central Lakes College
Bachelor of Science degree, College of St. Scholastica

Certification:

Health and Wellness Coaching

Dawn Harcey

RN, Nurse Coordinator

SPECIALTIES:

Reflux and Heartburn Management

SEES PATIENTS AT:

Riverwood Healthcare Center, Aitkin

EDUCATION:

RN degree, Lake Superior College, Duluth

Experience:

10 years clinic & hospital nursing, including chemotherapy & surgery

Megan Perpich

RD

Specialties:

Clinical Nutrition

Sees patients at:

Riverwood Healthcare Center, Aitkin

Board Certification:

Registered Dietitian with the Commission on Dietetic Registration

EDUCATION:

Bachelor of Science degree in Dietetics St. Catherine University, St. Paul, Minnesota

Internship:

Viterbo University, La Crosse, Wisconsin

Memberships:

Academy of Nutrition and Dietetics

Regina Schimek

RD

Specialties:

Clinical Nutrition

Sees patients at:

Cuyuna Regional Medical Center, Crosby

EDUCATION:

Master’s degree in Clinical Nutrition and Exercise Science from North Dakota State University
Bachelor of Science degree at NDSU in dietetics with a minor in psychology

Internship:

University of Houston

Call us today.
Let’s personalize a plan for your relief.

Contact a nurse coordinator

Crosby: Lea carlson, RN
Aitkin: Dawn Harcey, RN