39 Years of Experience
Accepting patients
Affiliated with a Castle Connolly Top Hospital
Who is Dr. Larson, Gastroenterologist in Rochester, MN?
Dr. Mark Larson, MD is a Gastroenterologist, who primarily practices in Rochester, MN with 1 additional practice location. He has been practicing for over 39 years and is board certified. Dr. Larson completed his residency at Mayo Grad Sch Med/Mayo Fndn, Gastroenterology; Mayo Grad Sch Med/Mayo Fndn, Internal Medicine. Dr. Larson is fluent in English, and is currently seeing new patients. Dr. Larson’s practice accepts Medicare, Aetna, Cigna, UnitedHealthcare and other major insurance plans. To book an appointment or to confirm insurance options, please call Dr. Larson’s office at (507) 284-2511.
What are Areas of Expertise for Dr. Larson?
Dr. Mark Larson, MD is a highly-rated, board-certified Gastroenterologist known for expertly diagnosing, treating, and managing a wide array of related conditions and procedures. Utilizing the latest medical advancements and evidence-based practices, Dr. Larson empowers patients to confidently navigate their health journey, specializing in Colon & Rectal Cancer, Endoscopic Therapies, and comprehensive wellness support. Serving the Rochester, MN community, Dr. Larson is dedicated to enhancing lives through expert, patient-centered care.
Where did Dr. Larson go to medical school and complete their residency?
Residency: Mayo Grad Sch Med/Mayo Fndn, Gastroenterology; Mayo Grad Sch Med/Mayo Fndn, Internal Medicine
Medical School: University Of Ia Coll Of Med- Iowa City Ia
Is Dr. Larson board certified as a Gastroenterologist?
Yes, Dr. Mark Larson, MD is board certified by the American Board of Internal Medicine
What languages does Dr. Larson speak?
Dr. Larson and their clinical team can communicate with patients in the following languages:
English
What conditions does a Gastroenterologist like Dr. Larson typically treat?
As a Gastroenterologist, Dr. Larson diagnoses, treats, and manages a wide range of conditions. This condition information is derived from anonymized insurance claims and highlights the medical conditions most commonly treated by Dr. Larson. It provides insight into the doctor’s areas of experience and expertise based on real-world patient encounters from the past two years, updated quarterly. Learn more about our claims-based healthcare methodology.
Also known as:
- Colon Cancer Screening
- Health Screening
- Colorectal Cancer Screening (PDQ®)
- Screening Tests to Detect Colorectal Cancer and Polyps
- Tests to Detect Colorectal Cancer and Polyps
- Colorectal Cancer Screening
- Colonoscopy Screening
- Bowel Cancer Screening
ICD-10 Codes:
- Z1211: Encounter for screening for malignant neoplasm of colon
Also known as:
- Dark, Tarry Stools (Melena)
- Gastrointestinal Bleeding
- Melena
- Black Stools
- Upper GI Bleed Signs
ICD-10 Codes:
- K921: Melena
Also known as:
- Blocked Esophagus
- Esophagus Disorder
- Esophageal Obstruction
- Food Pipe Blockage
- Swallowing Difficulty
ICD-10 Codes:
- K222: Esophageal obstruction
Also known as:
- Follow-up After Treatment (Non-Cancer)
- Post-Treatment Check-up
- Aftercare Visit
- Recovery Monitoring Exam
ICD-10 Codes:
- Z09: Encounter for follow-up examination after completed treatment for conditions other than malignant neoplasm
Also known as:
- Iron Deficiency Anemia from Chronic Blood Loss
- Anemia
- Iron
- Anemia due to iron deficiency and blood loss
- Chronic blood loss anemia
- Low iron anemia from bleeding
ICD-10 Codes:
- D500: Iron deficiency anemia secondary to blood loss (chronic)
Also known as:
- Stomach and Duodenum Disorder
- Stomach Disorder
- Gastric Conditions
- Duodenal Conditions
- Digestive System Disorders
ICD-10 Codes:
- K3189: Other diseases of stomach and duodenum
What procedures does a Gastroenterologist like Dr. Larson typically perform?
As a Gastroenterologist, Dr. Larson performs a variety of medical procedures. This procedure information is derived from anonymized insurance claims and highlights the medical procedures most commonly performed by Dr. Larson. It provides insight into the doctor’s areas of experience and expertise based on real-world patient encounters from the past two years, updated quarterly. Learn more about our claims-based healthcare methodology.
Also known as:
- Diagnostic Colonoscopy with Biopsy
- Colonoscopy with Polyp Removal
- Colonoscopy with Biopsy
- Colonoscopy
- Colorectal Cancer Screening Tests
- Flexible Colonoscopy
- Colon Exam with Biopsy
- Lower Endoscopy
- Colon Cancer Screening
- Flexible Colonoscopy with Polypectomy
- Colon Polyp Removal
- Colorectal Lesion Excision
- Colon Biopsy
- Large Intestine Scope
- Colorectal Cancer Screening
CPT Codes:
- 45378: Colonoscopy, flexible; diagnostic, including collection of specimen(s) by brushing or washing, when performed (separate procedure)
- 45385: Colonoscopy, flexible; with removal of tumor(s), polyp(s), or other lesion(s) by snare technique
- 45380: Colonoscopy, flexible; with biopsy, single or multiple
Also known as:
- Diagnostic Upper Endoscopy with Biopsy
- Esophagus Widening Procedure (Endoscopic)
- EGD with Esophageal Balloon Dilation
- EGD with Biopsy
- Esophagogastroduodenoscopy
- Upper GI Endoscopy
- Stomach Scope with Sample
- Esophageal Dilation
- EGD with Dilation
- Upper Endoscopy with Widening
- Upper Endoscopy with Esophageal Dilation
- Flexible Esophagoscopy with Balloon
- EGD with Balloon Widening
CPT Codes:
- 43235: Esophagogastroduodenoscopy, flexible, transoral; diagnostic, including collection of specimen(s) by brushing or washing, when performed (separate procedure)
- 43248: Esophagogastroduodenoscopy, flexible, transoral; with insertion of guide wire followed by passage of dilator(s) through esophagus over guide wire
- 43249: Esophagogastroduodenoscopy, flexible, transoral; with transendoscopic balloon dilation of esophagus (less than 30 mm diameter)
Also known as:
- Upper Endoscopy with Biopsy
- Biopsy
- Endoscopy
- EGD with Biopsy
- Gastroscopy with Biopsy
- Esophagogastroduodenoscopy with Biopsy
CPT Codes:
- 43239: Esophagogastroduodenoscopy, flexible, transoral; with biopsy, single or multiple
Does Dr. Larson accept my insurance?
Dr. Larson accepts most major insurance plans. Important: Please call our office at (507) 284-2511 before your appointment to verify that your specific plan and network are accepted.
What insurance plans does Dr. Larson accept in Rochester, MN?
Dr. Larson in Rochester, MN accepts plans from many carriers. While this list is updated regularly, it is not a guarantee of coverage.
Top Insurances
All Other Third Party
Centene Corporation
Cigna Group
HealthPartners
Medica Group
Medicare
Mutual of Omaha
State of Minnesota
UnitedHealth Group
Wellmark Blue Cross Blue Shield
View All Insurances
Where is Dr. Larson's office located?
What is Dr. Larson's NPI number?An National Provider Identifier (NPI) is a unique ID number that identifies doctors and healthcare providers nationwide.
Dr. Larson's National Provider Identifier (NPI) number is 1316910300.
What common questions do patients ask about Dr. Larson?
Here are answers to patients Frequently Asked Questions (FAQ’s) about Dr. Larson
What is Dr. Mark Larson's specialty?
Dr. Larson is a Gastroenterologist near Rochester, MN.
What does a Gastroenterologist do?
An internist focused on diagnosing and treating disorders of the digestive system, encompassing the stomach, intestines, liver, and gallbladder. This specialist manages conditions like abdominal pain, ulcers, diarrhea, cancer, and jaundice, and performs intricate diagnostic and therapeutic procedures using endoscopes to examine internal organs.
Is this Dr. Mark Larson affiliated with a ranked Castle Connolly Top Hospital?
Yes, Dr. Larson is affiliated with Mayo Clinic which is a Castle Connolly Top Hospital. Castle Connolly Top Hospitals are healthcare institutions recognized for their excellence in specific medical procedures and overall patient care. They are identified through a rigorous peer nomination process, evaluating factors like patient outcomes, quality of care, and expertise. The list recognizes hospitals that excel in 20 or more specific medical procedures, representing the top 25% nationwide. Castle Connolly Top Hospitals
When to see a Gastroenterologist?: Guides for symptoms, conditions, and treatments
Understand your symptoms and know when it’s time to see a Gastroenterologist. Explore insights from trusted medical experts on EverydayHealth.com, where you'll find the most relevant content and helpful condition guides for up-to date information about symptoms, causes, diagnosis, treatment and more. See all our health guides to find trusted information on medical conditions from our experts at Everyday Health.
Is Mark Larson accepting new patients in Rochester, MN?
Yes, Dr. Mark Larson is accepting new patients at this time.
Does Dr. Mark Larson offer online booking?
Please contact Dr. Larson's office at (507) 284-2511 for information about online booking, telehealth, or to schedule an appointment.
How can I make an appointment with Mark Larson?
Please contact Dr. Larson's office at (507) 284-2511 for information regarding telehealth appointment availability or for scheduling assistance.
Which board certifications does Dr. Mark Larson have?
Dr. Mark Larson is certified by the American Board of Internal Medicine.
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