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Dr. Gretchen Evans, MD

Ann Arbor, MI

Accepting patients

    Who is Dr. Evans, Gastroenterologist in Ann Arbor, MI?

    Dr. Gretchen Evans, MD is a Gastroenterologist, who primarily practices in Ann Arbor, MI with 2 additional practice locations. Dr. Evans is fluent in English, and is currently seeing new patients. Dr. Evans’s practice accepts Cigna, Kaiser Permanente, Medicare, UnitedHealthcare and other major insurance plans. To book an appointment or to confirm insurance options, please call Dr. Evans’s office.

    What languages does Dr. Evans speak?

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

    • English

    What conditions does Dr. Evans treat?

    As a Gastroenterologist, Dr. Evans 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. Evans. 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.

    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:

    • Stomach and Duodenum Disorder
    • Narrowing of Stomach Outlet in Adults
    • Stomach Disorder
    • Gastric Conditions
    • Duodenal Conditions
    • Digestive System Disorders
    • Adult Pyloric Stenosis
    • Thickened Pylorus in Adults
    • Stomach Exit Narrowing

    ICD-10 Codes:

    • K3189: Other diseases of stomach and duodenum
    • K311: Adult hypertrophic pyloric stenosis

    Also known as:

    • Chronic Stomach Inflammation
    • Stomach Disorder
    • Gastritis & Gastropathy
    • Chronic gastritis
    • Long-term stomach inflammation
    • Persistent stomach lining inflammation

    ICD-10 Codes:

    • K2950: Unspecified chronic gastritis without bleeding

    Also known as:

    • Other Specific Pancreatic Disease
    • Pancreatic Disease
    • Miscellaneous Pancreas Disorders
    • Named Pancreatic Conditions
    • Other Defined Pancreas Problems

    ICD-10 Codes:

    • K8689: Other specified diseases of pancreas

    Also known as:

    • Blocked Esophagus
    • Esophagus Disorder
    • Esophageal Obstruction
    • Food Pipe Blockage
    • Swallowing Difficulty

    ICD-10 Codes:

    • K222: Esophageal obstruction

    Also known as:

    • Other Intestinal Condition
    • Colonic Disease
    • Small Intestine Disorder
    • Bowel Conditions
    • Gut Problems
    • Digestive Issues

    ICD-10 Codes:

    • K6389: Other specified diseases of intestine

    What procedures does Dr. Evans perform?

    As a Gastroenterologist, Dr. Evans 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. Evans. 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.

    Also known as:

    • Colonoscopy with Polyp Removal
    • Colonoscopy with Biopsy
    • Diagnostic Colonoscopy with Biopsy
    • Colonoscopy with Tissue Removal
    • 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
    • Flexible colonoscopy with EMR
    • Endoscopic mucosal resection (colon)
    • Colon polyp removal during colonoscopy

    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)
    • 45390: Colonoscopy, flexible; with endoscopic mucosal resection

    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:

    • EGD with Endoscopic Ultrasound
    • Diagnostic Upper Endoscopy with Biopsy
    • EGD with Esophageal Balloon Dilation
    • Esophagus Widening Procedure (Endoscopic)
    • Colonoscopy with Injections
    • Flexible Sigmoidoscopy with Biopsy
    • Upper Endoscopy with Varices Banding
    • Colonoscopy
    • Colorectal Cancer Screening Tests
    • Upper GI Endoscopy with Ultrasound
    • EUS (Endoscopic Ultrasound)
    • Esophagus, Stomach, Duodenum Ultrasound
    • EGD with Biopsy
    • Esophagogastroduodenoscopy
    • Upper GI Endoscopy
    • Stomach Scope with Sample
    • Upper Endoscopy with Esophageal Dilation
    • Flexible Esophagoscopy with Balloon
    • EGD with Balloon Widening
    • Esophageal Dilation
    • EGD with Dilation
    • Upper Endoscopy with Widening
    • Flexible Colonoscopy with Injection
    • Colon Scope with Medication
    • Therapeutic Colonoscopy
    • Sigmoid Colon Scope with Biopsy
    • Lower Endoscopy with Tissue Sample
    • Flexible Sigmoidoscopy and Biopsy
    • Rectum and Lower Colon Exam
    • EGD with Band Ligation
    • Esophageal Varices Banding
    • Gastric Varices Treatment

    CPT Codes:

    • 43237: Esophagogastroduodenoscopy, flexible, transoral; with endoscopic ultrasound examination limited to the esophagus, stomach or duodenum, and adjacent structures
    • 43235: Esophagogastroduodenoscopy, flexible, transoral; diagnostic, including collection of specimen(s) by brushing or washing, when performed (separate procedure)
    • 43249: Esophagogastroduodenoscopy, flexible, transoral; with transendoscopic balloon dilation of esophagus (less than 30 mm diameter)
    • 43248: Esophagogastroduodenoscopy, flexible, transoral; with insertion of guide wire followed by passage of dilator(s) through esophagus over guide wire
    • 45381: Colonoscopy, flexible; with directed submucosal injection(s), any substance
    • 45331: Sigmoidoscopy, flexible; with biopsy, single or multiple
    • 43244: Esophagogastroduodenoscopy, flexible, transoral; with band ligation of esophageal/gastric varices

    Also known as:

    • Upper Endoscopy with Stomach/Duodenum Dilation
    • Upper Endoscopy with Ultrasound (EUS)
    • EGD with Dilation
    • Esophageal Dilation
    • Stomach Stricture Widening
    • Duodenal Stricture Repair
    • EGD with endoscopic ultrasound
    • Esophageal ultrasound
    • Stomach ultrasound endoscopy
    • Duodenal ultrasound endoscopy

    CPT Codes:

    • 43245: Esophagogastroduodenoscopy, flexible, transoral; with dilation of gastric/duodenal stricture(s) (eg, balloon, bougie)
    • 43259: Esophagogastroduodenoscopy, flexible, transoral; with endoscopic ultrasound examination, including the esophagus, stomach, and either the duodenum or a surgically altered stomach where the jejunum is examined distal to the anastomosis

    Also known as:

    • ERCP for Bile/Pancreatic Stent Exchange
    • ERCP with Bile or Pancreatic Duct Stent Removal
    • ERCP with Stent Placement
    • ERCP with Bile Duct Dilation
    • Bile duct stent replacement (ERCP)
    • Endoscopic retrograde cholangiopancreatography with stent exchange
    • Biliary stent removal and replacement
    • Pancreatic duct stent exchange
    • Endoscopic Retrograde Cholangiopancreatography
    • Bile Duct Stent Removal
    • Pancreatic Duct Foreign Body Removal
    • ERCP Stone Removal
    • Endoscopic Retrograde Cholangiopancreatography with Stent
    • Bile Duct Stent Placement via ERCP
    • Pancreatic Duct Stent Placement via ERCP
    • Endoscopic Retrograde Cholangiopancreatography with Dilation
    • Bile Duct Widening via ERCP
    • Pancreatic Duct Balloon Dilation

    CPT Codes:

    • 43276: Endoscopic retrograde cholangiopancreatography (ERCP); with removal and exchange of stent(s), biliary or pancreatic duct, including pre- and post-dilation and guide wire passage, when performed, including sphincterotomy, when performed, each stent exchanged
    • 43275: Endoscopic retrograde cholangiopancreatography (ERCP); with removal of foreign body(s) or stent(s) from biliary/pancreatic duct(s)
    • 43274: Endoscopic retrograde cholangiopancreatography (ERCP); with placement of endoscopic stent into biliary or pancreatic duct, including pre- and post-dilation and guide wire passage, when performed, including sphincterotomy, when performed, each stent
    • 43277: Endoscopic retrograde cholangiopancreatography (ERCP); with trans-endoscopic balloon dilation of biliary/pancreatic duct(s) or of ampulla (sphincteroplasty), including sphincterotomy, when performed, each duct

    Also known as:

    • Upper GI Endoscopy with Ultrasound Biopsy
    • Biopsy
    • Endoscopy
    • Ultrasound
    • EGD with EUS-FNA
    • Endoscopic Ultrasound Biopsy
    • Esophageal/Stomach Biopsy

    CPT Codes:

    • 43238: Esophagogastroduodenoscopy, flexible, transoral; with transendoscopic ultrasound-guided intramural or transmural fine needle aspiration/biopsy(s), (includes endoscopic ultrasound examination limited to the esophagus, stomach or duodenum, and adjacent structures)

    Also known as:

    • ERCP with Gallstone Removal
    • ERCP
    • Endoscopic Gallstone Removal
    • Biliary Duct Stone Removal
    • Pancreatic Duct Cleaning

    CPT Codes:

    • 43264: Endoscopic retrograde cholangiopancreatography (ERCP); with removal of calculi/debris from biliary/pancreatic duct(s)

    Also known as:

    • Upper Endoscopy for Foreign Body Removal
    • EGD for Foreign Body
    • Gastroscopy for Object Removal
    • Esophagogastroduodenoscopy for Foreign Body

    CPT Codes:

    • 43247: Esophagogastroduodenoscopy, flexible, transoral; with removal of foreign body(s)

    Also known as:

    • Upper Endoscopy with Ultrasound and Biopsy
    • Biopsy
    • Endoscopy
    • Ultrasound
    • EGD with Endoscopic Ultrasound Biopsy
    • Transoral EUS-FNA
    • Esophagogastroduodenoscopy with Biopsy

    CPT Codes:

    • 43242: Esophagogastroduodenoscopy, flexible, transoral; with transendoscopic ultrasound-guided intramural or transmural fine needle aspiration/biopsy(s) (includes endoscopic ultrasound examination of the esophagus, stomach, and either the duodenum or a surgically altered stomach where the jejunum is examined distal to the anastomosis)

    Also known as:

    • Stopping Bleeding in Esophagus, Stomach, or Duodenum
    • EGD with Bleeding Control
    • Upper GI Endoscopy for Bleeding
    • Gastric Bleeding Treatment

    CPT Codes:

    • 43255: Esophagogastroduodenoscopy, flexible, transoral; with control of bleeding, any method

    Also known as:

    • Upper GI Scope with Stent Placement
    • EGD with Stent
    • Esophageal Stent Placement
    • Stomach Stent Insertion

    CPT Codes:

    • 43266: Esophagogastroduodenoscopy, flexible, transoral; with placement of endoscopic stent (includes pre- and post-dilation and guide wire passage, when performed)

    Does Dr. Evans accept my insurance?

    Dr. Evans accepts most major insurance plans. Important: Please call our office at before your appointment to verify that your specific plan and network are accepted.

    What insurance plans does Dr. Evans accept in Ann Arbor, MI?

    Dr. Evans in Ann Arbor, MI accepts plans from many carriers. While this list is updated regularly, it is not a guarantee of coverage.

    Top Insurances

    • Blue Cross and Blue Shield of Nebraska

    • Cigna

    • Elevance Health Inc. (formerly Anthem)

    • Humana

    • Kaiser Permanente

    • Medicare

    • State of Colorado

    • State of Tennessee

    • The Vanguard Group

    • UnitedHealthcare

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    Where is Dr. Evans' office located?

    Dr. Gretchen Evans' Primary Practice

    1500 E Medical Center Dr

    Ann Arbor, MI 48109

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    Dr. Gretchen Evans' Practice 2

    2215 Fuller Rd

    Ann Arbor, MI 48105

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    Dr. Gretchen Evans' Practice 3

    1516 San Pablo St

    Los Angeles, CA 90033

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

    Dr. Evans's National Provider Identifier (NPI) number is 1184144230.

    What common questions do patients ask about Dr. Evans?

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

    What is Dr. Gretchen Evans's specialty?

    Dr. Evans is a Gastroenterologist near Ann Arbor, MI. 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. Contact Dr. Evans to book an appointment today.

    Is this Dr. Gretchen Evans affiliated with a ranked Castle Connolly Top Hospital?

    No, Evans is not affiliated with a Castle Connolly Top Hospital, but is affiliated with the following hospitals: Banner North Colorado Medical Center, Banner Mckee Medical Center, Banner Fort Collins Medical Center, East Morgan County Hospital, Sterling Regional Medcenter, Ogallala Community Hospital. Castle Connolly Top Hospitals 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

    Where can I learn more about Gastroenterologist?

    Explore Gastroenterologist with 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 Gretchen Evans accepting new patients in Ann Arbor, MI?

    Yes, Dr. Gretchen Evans is accepting new patients at this time.

    Does Dr. Gretchen Evans offer online booking?

    Please contact Dr. Evans's office for information about online booking, telehealth, or to schedule an appointment.

    How can I make an appointment with Gretchen Evans?

    Please contact Dr. Evans's office for information regarding telehealth appointment availability or for scheduling assistance.

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