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, UnitedHealthcare, Aetna, Cigna 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 or 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, or 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 Dr. Rex 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.
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:
- Benign Ascending Colon Polyp
- Benign Cecum Polyp
- Benign Transverse Colon 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
- Non-cancerous transverse colon growth
- Transverse colon adenoma
- Transverse colon benign tumor
ICD-10 Codes:
- D122: Benign neoplasm of ascending colon
- D120: Benign neoplasm of cecum
- D123: Benign neoplasm of transverse colon
Also known as:
- Colon Polyps
- Colonic Polyps
- Colorectal polyps
- Bowel polyps
- Intestinal polyps
ICD-10 Codes:
- K635: Polyp of colon
Also known as:
- Stomach or Duodenum Polyp
- Stomach Disorder
- Gastric Polyp
- Duodenal Polyp
- Stomach Growth
ICD-10 Codes:
- K317: Polyp of stomach and duodenum
What procedures does Dr. Rex 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.
Also known as:
- Colonoscopy with Polyp Removal
- Colonoscopy with Biopsy
- Colonoscopy with Tissue Removal
- Diagnostic Colonoscopy with Biopsy
- Colonoscopy with Polyp/Tumor Removal
- Colonoscopy with Balloon Dilation
- 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
- Flexible Colonoscopy with Biopsy
- Colorectal Polyp Removal
- Hot Biopsy Colonoscopy
- Flexible colonoscopy with ablation
- Colon polyp removal
- Colon tumor destruction
- Therapeutic colonoscopy
- Flexible Colonoscopy with Dilation
- Colon Dilation during Colonoscopy
- Endoscopic Balloon Dilation of Colon
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)
- 45384: Colonoscopy, flexible; with removal of tumor(s), polyp(s), or other lesion(s) by hot biopsy forceps
- 45388: Colonoscopy, flexible; with ablation of tumor(s), polyp(s), or other lesion(s) (includes pre- and post-dilation and guide wire passage, when performed)
- 45386: Colonoscopy, flexible; with transendoscopic balloon dilation
Also known as:
- Colonoscopy with Injections
- Diagnostic Upper Endoscopy with Biopsy
- Esophagus Widening Procedure (Endoscopic)
- EGD with Esophageal Balloon Dilation
- Small Intestine Endoscopy with Polyp Removal
- Upper Endoscopy with Mucosal Resection
- Flexible Sigmoidoscopy with Biopsy
- Upper Endoscopy with Varices Banding
- Small Intestine Endoscopy with Biopsy
- Endoscopy of Small Intestinal Pouch
- Upper Endoscopy with Injections
- 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
- Esophageal Dilation
- EGD with Dilation
- Upper Endoscopy with Widening
- Upper Endoscopy with Esophageal Dilation
- Flexible Esophagoscopy with Balloon
- EGD with Balloon Widening
- Enteroscopy with Lesion Removal
- Small Bowel Polyp Removal
- Therapeutic Enteroscopy
- EGD with Mucosal Resection
- Endoscopic Removal of Esophageal Lesion
- Flexible Endoscopy with Tissue Removal
- 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
- Enteroscopy with Biopsy
- Small Bowel Endoscopy
- Intestinal Biopsy (Endoscopic)
- Small Bowel Pouch Endoscopy
- Kock Pouch Evaluation
- Ileal Reservoir Endoscopy
- Pouchoscopy
- Enteroscopy
- Diagnostic Small Bowel Endoscopy
- Small Bowel Scope
- EGD with Submucosal Injections
- Esophagogastroduodenoscopy with Injections
- Stomach Scope with Medication
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)
- 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)
- 44364: Small intestinal endoscopy, enteroscopy beyond second portion of duodenum, not including ileum; with removal of tumor(s), polyp(s), or other lesion(s) by snare technique
- 43254: Esophagogastroduodenoscopy, flexible, transoral; with endoscopic mucosal resection
- 45331: Sigmoidoscopy, flexible; with biopsy, single or multiple
- 43244: Esophagogastroduodenoscopy, flexible, transoral; with band ligation of esophageal/gastric varices
- 44361: Small intestinal endoscopy, enteroscopy beyond second portion of duodenum, not including ileum; with biopsy, single or multiple
- 44385: Endoscopic evaluation of small intestinal pouch (eg, Kock pouch, ileal reservoir [S or J]); diagnostic, including collection of specimen(s) by brushing or washing, when performed (separate procedure)
- 44360: Small intestinal endoscopy, enteroscopy beyond second portion of duodenum, not including ileum; diagnostic, including collection of specimen(s) by brushing or washing, when performed (separate procedure)
- 43236: Esophagogastroduodenoscopy, flexible, transoral; with directed submucosal injection(s), any substance
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:
- Upper Endoscopy with Polyp Removal
- Upper Endoscopy with Tumor Ablation
- EGD with Polypectomy
- Esophagus, Stomach, Duodenum Scope with Removal
- Flexible Endoscopy Tumor Excision
- EGD with Ablation
- Esophagus, Stomach, Duodenum Scope with Ablation
- Flexible Endoscopy Lesion Treatment
CPT Codes:
- 43251: Esophagogastroduodenoscopy, flexible, transoral; with removal of tumor(s), polyp(s), or other lesion(s) by snare technique
- 43270: Esophagogastroduodenoscopy, flexible, transoral; with ablation of tumor(s), polyp(s), or other lesion(s) (includes pre- and post-dilation and guide wire passage, when performed)
Also known as:
- Sigmoidoscopy with Polyp Removal
- Colorectal Cancer Screening Tests
- Flexible Sigmoidoscopy with Polypectomy
- Colon Polyp Removal (Lower Colon)
- Sigmoid Colon Lesion Excision
- Lower Endoscopy with Polyp Removal
CPT Codes:
- 45338: Sigmoidoscopy, flexible; with removal of tumor(s), polyp(s), or other lesion(s) by snare technique
Also known as:
- Endoscopy and Biopsy of Small Intestine Pouch
- Kock pouch endoscopy
- Ileal reservoir evaluation
- Small bowel pouch biopsy
CPT Codes:
- 44386: Endoscopic evaluation of small intestinal pouch (eg, Kock pouch, ileal reservoir [S or J]); with biopsy, single or multiple
Also known as:
- Flexible Sigmoidoscopy
- Colorectal Cancer Screening Tests
- Sigmoidoscopy
- Lower colon exam
- Flexible colon scope
- Rectum and lower colon check
CPT Codes:
- 45330: Sigmoidoscopy, flexible; diagnostic, including collection of specimen(s) by brushing or washing, when performed (separate procedure)
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:
- Ileoscopy Through Stoma
- Diagnostic ileoscopy via stoma
- Ileum examination through ostomy
- Small bowel endoscopy via stoma
CPT Codes:
- 44380: Ileoscopy, through stoma; diagnostic, including collection of specimen(s) by brushing or washing, when performed (separate procedure)
Also known as:
- Colonoscopy Through Stoma with Polyp Removal
- Stoma Colonoscopy with Lesion Removal
- Ostomy Colonoscopy with Polyp Removal
- Colostomy Colonoscopy with Tumor Removal
CPT Codes:
- 44394: Colonoscopy through stoma; with removal of tumor(s), polyp(s), or other lesion(s) by snare technique
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
Blue Cross and Blue Shield of Nebraska
CVS Health (formerly Aetna)
Elevance Health Inc. (formerly Anthem)
Express Scripts
Humana
Medicare
MedImpact
OptumRx
State of Tennessee
UnitedHealthcare
View All Insurances
Where is Dr. Rex's office located?
Dr. Douglas Rex's Primary Practice
550 University Blvd # 4100
Indianapolis, IN 46202
(317) 278-8741
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. 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. Rex to book an appointment today.
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
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 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.
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