John Edward Carroll, MD| Gastroenterology | MedStar Health
About me
John E. Carroll, MD, is a Gastroenterologist at MedStar Georgetown University Hospital. Board certified in internal medicine and gastroenterology, Dr. Carroll has been at Georgetown for twenty-seven years. After graduating from medical school in Wisconsin, Dr. Carroll came to Georgetown for his internship in 1993, where he stayed and completed all of his postgraduate and specialty training. Dr. Carroll grew up in Chicago, and earned his degree in biomedical engineering at Marquette University.
Dr. Carroll did advanced training in endoscopic ultrasound (EUS) at Georgetown, and has been specializing in performing EUS procedures of the GI tract for 20 years. In addition to his interest in EUS procedures of the pancreas, stomach and biliary systems, Dr. Carroll also has extensive interest and expertise in treating disorders of the esophagus, such as Barrett’s esophagus and early invasive esophageal cancers. With the increasing advances in endoscopic technology which have developed in recent years, Dr. Carroll and his colleagues are routinely successfully curing early esophageal cancers endoscopically, which up until recently had required large surgeries to cure.
During his spare time Dr. Carroll enjoys skiing, sailing, travel, and following DC sports, in particular the Washington Nationals.
Hear from one of Dr. Carroll's patients:
Preventing Esophageal Cancer: Area Experts Treat Barrett's Esophagus
Clinical areas of focus
- Colon Biopsy
- Colonoscopy
- Enteroscopy
- Gastroesophageal Reflux Disease (GERD) In Children
- Inflammatory Bowel Disease (IBD) With Infection
- Intestinal Stenosis
- Irritable Bowel Syndrome
- Lower Gi Endoscopy
- Rectal Biopsy
Conditions and procedures
Conditions I treat
- Abdominal Cramping
- Abdominal Distension
- Abdominal Pain
- Abnormal Digestive Findings
- Abnormal Stool
- Achalasia
- Acute Pancreatitis
- Alimentary Tract Foreign Body
- Altered Bowel Habits
- Anal Fissures
- Anus And Rectum Diseases
- Aphagia
- Aphagia And Dysphagia
- Appendiceal Cancer
- Benign Neoplasm Of Colon, Rectum, Anus And Anal Canal
- Benign Neoplasm Of Digestive System
- Bile Duct Stones
- Biliary Tract Disease
- Bowel Obstruction
- Celiac Disease
- Choledocholithiasis
- Chronic Diarrhea
- Colitis
- Colon Cancer
- Colon Disease
- Colon Polyps
- Colorectal Malignancy
- Congenital Malformations Of Digestive System
- Constipation
- Crohn's Disease
- Crohn's Disease [Regional Enteritis]
- Diaphragmatic Hernia
- Digestive System Cancer
- Digestive System Complications
- Digestive System Diseases
- Digestive System Symptoms
- Diseases Of Esophagus
- Diseases Of Stomach And Duodenum
- Duodenal Ulcer
- Duodenitis
- Dysphagia
- Esophageal Cancer
- Esophageal Stricture
- Esophagitis
- External Hemorrhoids
- Flatulence
- Functional Intestinal Disorders
- Gallbladder Cancer
- Gallstones
- Gas And Bloating
- Gastric Cancer
- Gastric Varices
- Gastritis
- Gastroenteritis
- Gastroesophageal Reflux Disease (GERD) In Children
- Gastrointestinal Bleeding
- Gastrointestinal Stromal Tumor (GIST)
- Hemangioma
- Hematemesis
- Hemorrhoids
- Hepatitis
- Hepatomegaly
- Hepatomegaly And Splenomegaly
- Infectious Gastroenteritis
- Inflammatory Bowel Disease (IBD) With Infection
- Intestinal Infections
- Intestinal Stenosis
- Irritable Bowel Syndrome
- Liver Cirrhosis
- Liver Encephalopathy
- Liver Fibrosis
- Malabsorption
- Malignant Neuroendocrine Tumors
- Noninfective Gastroenteritis
- Pancreatic Diseases
- Pancreatitis
- Paralytic Ileus And Intestinal Obstruction
- Perianal Pain
- Peripheral Vascular Disease Of The Intestines
- Polycystic Liver Disease
- Postoperative Ileus
- Postprandial Diarrhea
- Rectal Pain
- Regional Enteritis
- Small Intestine Cancer
- Stomach Cancer
- Stomach Ulcers
- Ulcerative Colitis
- Viral Hepatitis
- Vomiting And Nausea
Procedures I perform
- Capsule Endoscopy
- Colon Biopsy
- Colonoscopy
- Colonoscopy Through Stoma With Biopsy
- Colonoscopy With Injection
- EGD With Biopsy
- EGD With Dilation
- Endoscopic Diagnostic Pancreas Drainage
- Endoscopic Mucosal Resection
- Endoscopic Retrograde Cholangiopancreatography (ERCP)
- Endoscopic Stomach Feeding Device Insertion
- Enteroscopy
- Enteroscopy With Bleeding Control
- Esophageal Dilation
- Esophageal PH Monitoring
- Esophagogastroduodenoscopy With Tumor Ablation
- Flexible Colonoscopy With Biopsy
- Flexible Sigmoidoscopy With Biopsy
- Fluoroscopy Of Stomach
- Gastric Manometry
- Gastrointestinal Motility Study
- Gastrointestinal Neurological Disorders Treatment
- Gastrostomy
- Gastrostomy Tube Replacement
- Helicobacter Pylori Stool Test
- Liver Biopsy
- Lower Gi Endoscopy
- Lower Gi Therapeutic Substance Introduction
- Mallory-Weiss Syndrome Treatment
- Rectal Biopsy
- Rectal Stricture Dilation
- Retrograde Cholangiopancreatography
- Sigmoidoscopy With Biopsy
- Stent Placement
- Transrectal Ultrasound
- Ulcerative Colitis-Associated Arthritis Treatment
- Ultrasonography Of Gastrointestinal Tract
- Upper Esophagus Dilation, Endoscopic
- Upper Gi Endoscopy
- Urea Breath Test
- Variceal Band Ligation
Insurance
MedStar Health accepts most major health insurance plans. If you are uncertain as to whether your individual health insurance plan is accepted at MedStar Health, please call your insurance company.
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List of insurance plans we accept
- Anthem BCBS of VA HealthKeepers (POS & POS OA)
- CareFirst BlueCross BlueShield Advantage Core/Enhanced
- CareFirst Group Medicare Advantage prescription drug benefit (PPO)
- Medicare Direct
- United Healthcare Select HMO-EPO/NPP Cardiac Global
- Aetna Elect Choice/ Open Access (POS)
- Anthem BCBS of VA Key Care POS/PPO/Indemnity
- CIGNA Indemnity
- IH-Open POS Plus
- HUMANA/Choice Care Medicare Plans (Choice, Gold Choice)
- CIGNA Connect EPO
- UnitedHealthcare Individual Exchange Plans
- Aetna Signature Administrator PPO/TPA
- United Healthcare Choice Cardiac Global
- OA Plus
- Anthem BCBS of VA HealthKeepers (HMO)
- Medicare Advantage - Advantra Value (PPO)
- Network OA
- AMERIVANTAGE/Amerigroup Community Care
- Optimum Choice Preferred (POS)
- Kaiser Permaenete Signature - Added Choice Cardiac Global
- Amerigroup DC Healthy Families
- Anthem Federal Employee Program Standard
- United Healthcare Options (PPO)
- Cigna TotalCare (HMO D-SNP)
- Aetna HMO
- IH-Open Network Only Plus
- Aetna Managed Choice (POS)
- United Healthcare Select HMO - EPO/NPP
- BCBS of Michigan (BCN Advantage,Security Blue, Freedom, Medicare PLUS Blue Group PPO)
- Aetna Better Health of MD
- United Healthcare Choice
- United Student Resources
- Navigate
- M.D. IPA Preferred (POS)
- Aetna VA Exchange
- CareFirst EPO
- United Healthcare Community Plan - VA Medicaid MCO
- Aetna Classic 5000PD
- Priority Partners - Maryland Health Choice
- HumanaChoice Honor's plan PPO
- UHC Passport
- Optimum Choice
- POS OA
- OCI Direct (HMO)
- WellPoint Maryland - Maryland Health Choice
- Aetna Worker's Compensation Network
- M.D. IPA (HMO)
- IH-Open HMO
- CareFirst MedStar Select PPO
- Cigna True Choice Medicare (PPO)
- Employee Health Plan
- Choice POS II
- CareFirst Maryland Point of Service Plan
- CareFirst Administrators
- Johns Hopkins Advantage MD HMO
- Healthy Blue (HMO, POS)
- CareFirst Federal Employee Program (Std. & Basic PPO)
- Johns Hopkins Advantage MD PPO
- CareFirst Community Health Plan of MD
- Kaiser Permanente Flexible Choice 3-tier POS
- Tricare Reserve Select
- MedStar Family Choice DC Healthy Families
- Aetna HMO-Open Access/Select OA/HealthFund/Health Network Option OA
- Choice POS
- AmeriHealth Caritas DC Healthcare Alliance
- Choice Fund PPO
- Kaiser Permanente Select Cardiac Global
- IH-EPO Plus
- Advantra Platinum (PPO)
- Blue Choice Advantage
- United Healthcare Select Plus (POS)
- Aetna Student Health Insurance
- UnitedHealthcare Medicare Adv. Special Needs Plans
- IH-Network Only Plus
- UnitedHealthcare and AARP Medicare Complete Plans
- Aetna Basic
- TRICARE East Select
- MultiPlan, Inc
- CareFirst BlueChoice HMO
- CIGNA EPO
- Kaiser Permanente Signature
- Mamsi Life & Health (Indem./PPO)
- Options PPO Cardiac Global
- CIGNA SureFit (HMO)
- Mamsi Life & Health (Indem./PPO) Cardiac Global
- Private Health Care Systems (PPO)
- Aetna Medicare Advantage HMO & PPO Plans
- CareFirst FEP Blue Focus
- Optima Family Care MCO - VA Medicaid MCO
- IH-Open EPO Plus
- MedStar Family Choice DC Healthcare Alliance
- Kaiser Permanente Select
- Kaiser Permanente HMO Plus and DHMO Plus Member
- United Medicare Private Fee-for-Service (PFFS) plans
- Great-West Healthcare POS/CIGNA
- NYC Medicare Advantage Plus
- Fee-for-Service (FFS) District of Columbia, Maryland and Virginia Medicaid
- Core Essential (HMO)
- BCBS Out-of-State Medicare Plans (Blue Advantage)
- First Health PPO
- Kaiser Permanente Flexible Choice POS Cardiac Global
- IH-POS
- Johns Hopkins Advantage MD PLUS PPO
- Maryland Physicians Care MCO
- Aetna Managed Choice Open Access (POS)
- IH-PPO
- HighMark
- Lasso Healthcare - Medicare Medical Savings Account
- Medicare FFS
- BlueChoice Open Access
- CIGNA PPO Plus
- Health Services for Children with Special Needs
- Humana Medicare Advantage - PPO
- Kaiser Permanente Medicare Advantage Signature and Select
- Aetna Classic 5000
- MedStar Family Choice - Maryland Health Choice
- DC/MD SHOP QHP Small Business Plans
- HealthyBlue PPO
- Aetna Better Health of VA
- Beech Street PPO
- Jai Medical Systems - Maryland Health Choice
- Coventry Health Care National Network PPO
- TriWest Healthcare Alliance
- MD IPA (HMO) & MD IPA Preferred Cardiac Global
- Optimum Choice & Optimum Choice Preferred (POS) Cardiac Global
- CIGNA PPO
- Uniformed Services Family Health Plan
- Kaiser Permanente Select - Added Choice
- Police and Fire Clinic
- Magellan Complete Care of VA - VA Medicaid MCO
- Anthem BCBS Medi Blue Dual Adv
- Aetna Premier 200PD
- IH-POS Plus
- Humana Medicare Advantage - HMO Open Access
- Choice POS II Open Access
- CareFirst Blue Choice Opt Out Open Access
- CareFirst Blue Preferred PPO
- Cigna Alliance Medicare (HMO)
- Anthem Federal Employee Program Basic
- TRICARE East Prime
- Anthem BCBS Medi Blue Plus
- Aetna Classic 3500
- AmeriHealth Caritas DC Healthy Families
- Cigna True Choice Plus Medicare (PPO)
- United HealthCare Community Plan - Maryland Health Choice Program
- CareFirst Blue Choice Opt Out Plus Open Access (POS)
- CareFirst MedStar PPO
- CareFirst Group Medicare Advantage
- Geisinger Medicare Advantage
- Aetna Advantage 5750
- Select HMO/HealthFund/Health Network
- Kaiser Permanente Medicare Plus
- IH-Open HMO Option
- Aetna Open Choice (PPO)
- CareFirst (NCA) Indemnity
- Humana Gold Plus HMO
- United Healthcare Choice Plus
- CareFirst NASCO
- CIGNA HMO & Network (HMO)
- CareFirst Maryland Indemnity or PPO
- TRICARE for Life East
- Amerigroup DC Alliance
- Choice Care Network/HUMANA (PPO)
- Sentara Health
- Anthem BCBS Medi Blue SNP
- Kaiser Permanente Signature - Added Choice
- Kaiser Maryland Medicaid MCO
- CareFirst Blue Card Program
- UHC Group Medicare Advantage Plans (HMO, POS, PPO)
- Aetna Traditional Choice (PPO)
- Veterans Affairs Community Care Network
- HumanaChoice PPO
- Aetna Medicare Advantage PFFS Plan
- IH-Open POS II
- Aetna Advantage 6350
- Aetna Quality Point of Service (POS)
- Cigna Preferred Medicare (HMO)
- First Health PPO
- Erickson Advantage Plans
- Coventry of Delaware HMO/PPO
- Aetna Advantage 6350PD
- Coventry Health Care of Virginia
- United Healthcare Navigate Cardiac Global
- CIGNA HMO Open Access
- Private Fee-for-Service Plans (PFFS)
- CIGNA POS/Network POS
- CareFirst Dual Prime HMO-SNP
- Alterwood Advanatge HMO & DSNP Plans
- United Healthcare Choice Plus Cardiac Global
- IH-Indemnity
- Cigna Achieve Medicare (HMO C-SNP)
- IH-HMO
- Anthem BCBS of VA HealthKeepers Plus
- Aetna Elect Choice/ EPO (Aetna Health Fund)
- UnitedHealthcare Medicare Advantage DSNP District of Columbia
Videos
Education
Fellowship: Georgetown University School of Medicine GME (1999)
Residency: Georgetown University School of Medicine GME (1996)
Medical School: Medical College of Wisconsin (1993)