EverydayHealthLogo
Dr. Erik Thyssen, MD

Dr. Erik Thyssen, MD

Gastroenterologist

Creve Coeur, MO

Accepting patients

Affiliated with a Castle Connolly Top Hospital

    Who is Dr. Thyssen, Gastroenterologist in Creve Coeur, MO?

    Dr. Erik Thyssen, MD is a Gastroenterologist, who primarily practices in Creve Coeur, MO. He is board certified. Dr. Thyssen completed his residency at Barnes-Jewish Hosp-S Campus, Gastroenterology; Michael Reese Hosp Med Ctr, Internal Medicine. Dr. Thyssen is fluent in English and Danish, and is currently seeing new patients. Dr. Thyssen’s practice accepts Medicare, Aetna, Cigna, UnitedHealthcare and other major insurance plans. To book an appointment or to confirm insurance options, please call Dr. Thyssen’s office at (314) 994-0554.

    What are Areas of Expertise for Dr. Thyssen?

    Dr. Erik Thyssen, 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. Thyssen empowers patients to confidently navigate their health journey, specializing in Colon Cancer Screening, Endoscopic Therapies, Gastrointestinal Disorders, and comprehensive wellness support. Serving the Creve Coeur, MO community, Dr. Thyssen is dedicated to enhancing lives through expert, patient-centered care.

    Where did Dr. Thyssen go to medical school and complete their residency?

    • Residency: Barnes-Jewish Hosp-S Campus, Gastroenterology; Michael Reese Hosp Med Ctr, Internal Medicine | Michael Reese | Michael Reese Hospital

    • Medical School: Kobenhavns University, Det Laegevidenskabelige Fak, Kobenhavn, Denmark | University of Copenhagen

    Is Dr. Thyssen board certified as a Gastroenterologist?

    Yes, Dr. Erik Thyssen, MD is board certified by the American Board of Internal Medicine

    What languages does Dr. Thyssen speak?

    Dr. Thyssen and their clinical team can communicate with patients in the following languages:

    • Danish
    • English

    What conditions does a Gastroenterologist like Dr. Thyssen typically treat?

    As a Gastroenterologist, Dr. Thyssen 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. Thyssen. 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:

    • 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:

    • 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:

    • Change in Bowel Habits
    • Bowel Movement
    • Altered Bowel Habits
    • Irregular Bowel Movements
    • Changes in Pooping

    ICD-10 Codes:

    • R194: Change in bowel habit

    Also known as:

    • Acid Reflux
    • GERD
    • Acid Reflux (GER & GERD) in Adults
    • Acid Reflux (GER & GERD) in Children
    • Acid Reflux (GER & GERD) in Infants
    • Gastroesophageal Reflux
    • Heartburn
    • Indigestion

    ICD-10 Codes:

    • K219: Gastro-esophageal reflux disease without esophagitis

    What procedures does a Gastroenterologist like Dr. Thyssen typically perform?

    As a Gastroenterologist, Dr. Thyssen 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. Thyssen. 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:

    • Colonoscopy with Polyp Removal
    • Colonoscopy with Biopsy
    • Diagnostic Colonoscopy with Biopsy
    • Colonoscopy
    • Colorectal Cancer Screening Tests
    • Flexible Colonoscopy with Polypectomy
    • Colon Polyp Removal
    • Colorectal Lesion Excision
    • Flexible Colonoscopy
    • Colon Biopsy
    • Large Intestine Scope
    • Colorectal Cancer Screening
    • Colon Exam with Biopsy
    • Lower Endoscopy
    • Colon Cancer Screening

    CPT Codes:

    • 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
    • 45378: Colonoscopy, flexible; diagnostic, including collection of specimen(s) by brushing or washing, when performed (separate procedure)

    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

    Also known as:

    • Esophagus Widening Procedure (Endoscopic)
    • Diagnostic Upper Endoscopy with Biopsy
    • Esophageal Dilation
    • EGD with Dilation
    • Upper Endoscopy with Widening
    • EGD with Biopsy
    • Esophagogastroduodenoscopy
    • Upper GI Endoscopy
    • Stomach Scope with Sample

    CPT Codes:

    • 43248: Esophagogastroduodenoscopy, flexible, transoral; with insertion of guide wire followed by passage of dilator(s) through esophagus over guide wire
    • 43235: Esophagogastroduodenoscopy, flexible, transoral; diagnostic, including collection of specimen(s) by brushing or washing, when performed (separate procedure)

    Also known as:

    • Liver Elastography
    • Elastography
    • FibroScan
    • Liver stiffness test
    • Shear wave elastography

    CPT Codes:

    • 91200: Liver elastography, mechanically induced shear wave (eg, vibration), without imaging, with interpretation and report

    Does Dr. Thyssen accept my insurance?

    Dr. Thyssen accepts most major insurance plans. Important: Please call our office at (314) 994-0554 before your appointment to verify that your specific plan and network are accepted.

    What insurance plans does Dr. Thyssen accept in Creve Coeur, MO?

    Dr. Thyssen in Creve Coeur, MO accepts plans from many carriers. While this list is updated regularly, it is not a guarantee of coverage.

    Top Insurances

    • Blue Cross Blue Shield Association

    • Cigna Group

    • CVS Health (formerly Aetna)

    • Elevance Health Inc. (formerly Anthem)

    • Federal government of the United States

    • Healthcare Advantage

    • Humana

    • Medicare

    • UMR Administered Payer

    • UnitedHealth Group

    View All Insurances

    Where is Dr. Thyssen's office located?

    Specialists In Gastroenterology

    11525 Olde Cabin Rd Ste 101

    Creve Coeur, MO 63141

    (314) 994-0554

    Get Directions

    What is Dr. Thyssen's NPI number?A National Provider Identifier (NPI) is a unique ID number that identifies doctors and healthcare providers nationwide.

    Dr. Thyssen's National Provider Identifier (NPI) number is 1750495099.

    What common questions do patients ask about Dr. Thyssen?

    Here are answers to patients Frequently Asked Questions (FAQ’s) about Dr. Thyssen

    What is Dr. Erik Thyssen's specialty?

    Dr. Thyssen is a Gastroenterologist near Creve Coeur, MO.

    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 Dr. Erik Thyssen affiliated with a ranked Castle Connolly Top Hospital?

    Yes, Dr. Thyssen is affiliated with Missouri Baptist Medical Center 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 Dr. Erik Thyssen accepting new patients in Creve Coeur, MO?

    Yes, Dr. Erik Thyssen is accepting new patients at this time.

    Does Dr. Erik Thyssen offer online booking?

    Please contact Dr. Thyssen's office at (314) 994-0554 for information about online booking, telehealth, or to schedule an appointment.

    How can I make an appointment with Dr. Erik Thyssen?

    Please contact Dr. Thyssen's office at (314) 994-0554 to schedule an appointment.

    Where is Dr. Thyssen's office located?

    Dr. Thyssen's office is located in Creve Coeur, MO.

    Which board certifications does Dr. Erik Thyssen have?

    Dr. Erik Thyssen is certified by the American Board of Internal Medicine.