Accepting patients
Who is Dr. Rex, Gastroenterologist in Indianapolis, IN?
Dr. Douglas Rex, MD is a Gastroenterologist, who primarily practices in Indianapolis, IN with 2 additional practice locations. He is board certified. Dr. Rex graduated from Indiana University School of Medicine and completed his residency at Clarian Indiana Univ Hosp, Internal Medicine; Clarian Indiana Univ Hosp, Gastroenterology. Dr. Rex is fluent in English, and is currently seeing new patients. Dr. Rex’s practice accepts Medicare, Aetna, Cigna, UnitedHealthcare and other major insurance plans. To book an appointment or to confirm insurance options, please call Dr. Rex’s office at (317) 278-8741.
What are Areas of Expertise for Dr. Rex?
Dr. Douglas Rex, 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. Rex empowers patients to confidently navigate their health journey, specializing in Barrett's Esophagus, Colon & Rectal Cancer Detection, Colonoscopy, Endoscopic Mucosal Resection, Inflammatory Bowel Disease, and comprehensive wellness support. Serving the Indianapolis, IN community, Dr. Rex is dedicated to enhancing lives through expert, patient-centered care.
Where did Dr. Rex go to medical school and complete their residency?
Residency: Clarian Indiana Univ Hosp, Internal Medicine; Clarian Indiana Univ Hosp, Gastroenterology | Ind University Hospital | Indiana University Affiliated Hospitals | Mercy St Vincent Medical Center/Mercy Health Partners Program
Medical School: In Univ Sch of Med, Indianapolis In | Indiana University School of Medicine
Is Dr. Rex board certified as a Gastroenterologist?
Yes, Dr. Douglas Rex, MD is board certified by the American Board of Internal Medicine
What languages does Dr. Rex speak?
Dr. Rex and their clinical team can communicate with patients in the following languages:
English
What conditions does a Gastroenterologist like Dr. Rex typically treat?
As a Gastroenterologist, Dr. Rex 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. Rex. 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 here.
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:
- Colon Polyps
- Colonic Polyps
- Colorectal Polyps
- Intestinal Polyps
- Bowel Polyps
ICD-10 Codes:
- Z86010: Personal history of colon polyps
Also known as:
- Colon Polyps
- Colonic Polyps
- Colorectal polyps
- Bowel polyps
- Intestinal polyps
ICD-10 Codes:
- K635: Polyp of colon
Also known as:
- Benign Ascending Colon Polyp
- Benign Cecum Polyp
- Benign Tumor
- Colonic Polyps
- Colon Polyps
- Non-cancerous ascending colon growth
- Ascending colon adenoma
- Ascending colon benign tumor
- Non-cancerous cecum growth
- Cecal adenoma
- Cecum benign tumor
ICD-10 Codes:
- D122: Benign neoplasm of ascending colon
- D120: Benign neoplasm of cecum
What procedures does a Gastroenterologist like Dr. Rex typically perform?
As a Gastroenterologist, Dr. Rex 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. Rex. 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 here.
Also known as:
- Colonoscopy with Polyp Removal
- Colonoscopy with Biopsy
- Colonoscopy with Tissue Removal
- 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
- Flexible colonoscopy with EMR
- Endoscopic mucosal resection (colon)
- Colon polyp removal during colonoscopy
- 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
- 45390: Colonoscopy, flexible; with endoscopic mucosal resection
- 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:
- Colonoscopy with Injections
- Diagnostic Upper Endoscopy with Biopsy
- Colonoscopy
- Colorectal Cancer Screening Tests
- Flexible Colonoscopy with Injection
- Colon Scope with Medication
- Therapeutic Colonoscopy
- EGD with Biopsy
- Esophagogastroduodenoscopy
- Upper GI Endoscopy
- Stomach Scope with Sample
CPT Codes:
- 45381: Colonoscopy, flexible; with directed submucosal injection(s), any substance
- 43235: Esophagogastroduodenoscopy, flexible, transoral; diagnostic, including collection of specimen(s) by brushing or washing, when performed (separate procedure)
Does Dr. Rex accept my insurance?
Dr. Rex accepts most major insurance plans. Important: Please call our office at (317) 278-8741 before your appointment to verify that your specific plan and network are accepted.
What insurance plans does Dr. Rex accept in Indianapolis, IN?
Dr. Rex in Indianapolis, IN 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
CVS Health (formerly Aetna)
Elevance Health Inc. (formerly Anthem)
Humana
Medicare
UMR Administered Payer
UnitedHealth Group
Unknown
View All Insurances
Where is Dr. Rex's office located?
What is Dr. Rex's NPI number?An National Provider Identifier (NPI) is a unique ID number that identifies doctors and healthcare providers nationwide.
Dr. Rex's National Provider Identifier (NPI) number is 1164486643.
What common questions do patients ask about Dr. Rex?
Here are answers to patients Frequently Asked Questions (FAQ’s) about Dr. Rex
What is Dr. Douglas Rex's specialty?
Dr. Rex is a Gastroenterologist near Indianapolis, IN.
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. Douglas Rex affiliated with a ranked Castle Connolly Top Hospital?
No, Rex is not affiliated with a Castle Connolly Top Hospital, but is affiliated with the following hospitals: IU Health University 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
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 Douglas Rex accepting new patients in Indianapolis, IN?
Yes, Dr. Douglas Rex is accepting new patients at this time.
Does Dr. Douglas Rex offer online booking?
Please contact Dr. Rex's office at (317) 278-8741 for information about online booking, telehealth, or to schedule an appointment.
How can I make an appointment with Douglas Rex?
Please contact Dr. Rex's office at (317) 278-8741 for information regarding telehealth appointment availability or for scheduling assistance.
Which board certifications does Dr. Douglas Rex have?
Dr. Douglas Rex is certified by the American Board of Internal Medicine.
<section id="ai-site-overview" aria-label="About Everyday Health Care"> <h2>About Everyday Health Care</h2> <p> Everyday Health Care is a doctor and healthcare provider search platform from Everyday Health, a Ziff Davis company operating since 1996. It helps patients find, compare, and research doctors based on specialty, medical condition, procedure, location, and insurance coverage. </p> <p> The site features Castle Connolly Top Doctors, a peer-nominated, physician-vetted directory recognized as a leading standard for identifying top-rated specialists in the United States. Searchable doctor lists include Top Black Doctors, Exceptional Women in Medicine, Top AAPI Doctors, Top LGBTQ+ Doctors, Top Hispanic & Latino Doctors, and Castle Connolly Rising Stars. </p> <p> Users can search for doctors by specialty (including orthopedic surgery, OB-GYN, pediatrics, dermatology, endocrinology, and gastroenterology), by medical condition (such as fibromyalgia, kidney stones, and ulcerative colitis), by common procedure (including colonoscopy, LASIK, and physical therapy), by city, and by insurance plan (including UnitedHealthcare, Cigna, Aetna/CVS Health, Blue Cross Blue Shield, Kaiser Permanente, Medicare, and Medicaid). </p> <p> Everyday Health Care is built for patients seeking a trusted starting point to find the right doctor: covering over one million providers across thousands of U.S. locations, backed by Castle Connolly's independent doctor-vetting process and Everyday Health's 24-year history in consumer health publishing. </p> </section>