Abhinav Sankineni, MD| Gastroenterology | MedStar Health
About me
Abhinav Sankineni MD, MPH, is a highlycompetent and specialized gastroenterologist at MedStar Health. He is dedicated to providing high-quality, patient-centered care for those diagnosed with gastrointestinal disorders. In his daily work, Dr. Sankineni strives to improve health outcomes and promote preventive healthcare measures in the community. Dr. Sankineni offers various diagnostic and therapeutic procedures, including:
- ERCP (Endoscopic Retrograde Cholangiopancreatography)
- Endoscopic Ultrasound (EUS)
- Esophageal Manometry
- Esophageal Wireless pH Monitoring
- Esophageal and Biliary Stenting
- Enteral Stenting
- Radiofrequency Ablation (RFA)
- Endoscopic Mucosal Resection (EMR)
- Cryoablation
In addition to his medical education at the Kamineni Institute of Medical Sciences in Telangana, India, and his clinical training at both Abington Memorial Hospital and Temple University Hospital, Dr. Sankineni holds a master’s degree in public health from West Virginia University. This underscores his commitment to public health issues and the application of preventive healthcare measures.
Philosophy of Care
“Gastroenterology is a complex field, and it’s important that we tailor care to address the specific needs of each patient. I offer a very diverse range of diagnostic and therapeutic procedures, with a goal to help each patient overcome his or her challenges and maximize their quality of life.”
Clinical areas of focus
- Abdominal Pain
- Colonoscopy
- Constipation
- Dysphagia
- Endoscopy With Biopsy
- Enteroscopy
- Gastroenteritis
- Hemorrhoids
- Hysteroscopic Polyp Resection
- Intestinal Dysmotility
- Transrectal Ultrasound
- Upper Gi Endoscopy
Conditions and procedures
Conditions I treat
- Abdominal Cramping
- Abdominal Pain
- Abnormal Body Structure Imaging
- Abnormal Stool
- Achalasia
- Acute Cholecystitis
- Acute Pancreatitis
- Alimentary Tract Foreign Body
- Altered Bowel Habits
- Anal Cancer
- Anal Fissures
- Anoscopy
- Anus And Rectum Diseases
- Aphagia
- Aphagia And Dysphagia
- Appendiceal Cancer
- Ascites
- Autoimmune Hepatitis
- Benign Neoplasm Of Colon, Rectum, Anus And Anal Canal
- Benign Neoplasm Of Digestive System
- Benign Tumor
- Bile Duct Cancer
- Biliary Tract Disease
- Blood In Stool
- Bowel Obstruction
- Cancer Of The Appendix
- Candidiasis
- Celiac Disease
- Choledocholithiasis
- Colitis
- Colon Cancer
- Colon Disease
- Colon Polyps
- Colon Stricture
- Colorectal Malignancy
- Complications Of Cardiac And Vascular Prosthetic Devices
- Congenital Malformations Of Digestive System
- Congenital Malformations Of Esophagus
- Congenital Malformations Of Gallbladder, Bile Ducts And Liver
- Congenital Malformations Of Intestine
- Congenital Malformations Of Peripheral Vascular System
- Congenital Malformations Of Upper Alimentary Tract
- Constipation
- Crohn's Disease
- Crohn's Disease [Regional Enteritis]
- Cutaneous Abscess
- Cystoscopy
- Diaphragmatic Hernia
- Digestive System Complications
- Digestive System Diseases
- Digestive System Symptoms
- Diseases Of Esophagus
- Diseases Of Stomach And Duodenum
- Diverticular Disease
- Duodenal Ulcer
- Duodenitis
- Dysphagia
- Epigastric Pain
- Esophageal Cancer
- Esophageal Stricture
- Esophagitis
- External Hemorrhoids
- Family History Of Malignant Neoplasm
- Family History Of Specific Disorders
- Flatulence
- Functional Intestinal Disorders
- Gallbladder Cancer
- Gastric Cancer
- Gastric Varices
- Gastritis
- Gastroenteritis
- Gastroesophageal Reflux Disease
- Gastroesophageal Reflux Disease (GERD) In Children
- Gastrointestinal Stromal Tumor (GIST)
- General Symptoms
- Genetic Susceptibility To Disease
- H. Pylori Infection
- Helicobacter Pylori
- Hemangioma
- Hemorrhoids
- Hemorrhoids And Perianal Venous Thrombosis
- Hepatitis A
- Hepatitis B
- Hepatitis C
- Hepatomegaly
- Hepatomegaly And Splenomegaly
- Inflammatory Bowel Disease
- Inflammatory Bowel Disease (IBD) With Infection
- Intestinal Dysmotility
- Intestinal Infections
- Irritable Bowel Syndrome
- Jaundice
- Liver Cancer
- Liver Cirrhosis
- Liver Enzyme Abnormalities
- Malabsorption
- Malignant Neuroendocrine Tumors
- Melena
- Myocarditis
- Nausea
- Noninfective Gastroenteritis
- Ovarian Cysts And Benign Neoplasms
- Pancreas Cancer
- Pancreatic Diseases
- Pancreatitis
- Paralytic Ileus And Intestinal Obstruction
- Perianal Fistula
- Perianal Itching
- Perianal Pain
- Peripheral Vascular Disease Of The Intestines
- Personal History Of Diseases And Conditions
- Phakomatoses
- Polycystic Liver Disease
- Portal Hypertension
- Postoperative Ileus
- Postprandial Diarrhea
- Rectal Cancer
- Small Intestine Cancer
- Spinal Stenosis
- Splenectomy
- Splenic Diseases
- Stomach Cancer
- Stomach Cramps
- Swallowing Disorders
- Ulcerative Colitis
- Vascular Disorders Of Intestine
- Viral Hepatitis
- Vomiting
- Zollinger
Procedures I perform
- Anxiety Management
- Ascending Colectomy
- Biopsy Of Tongue
- Bladder Inspection
- Bowel Resection
- Colonoscopy
- Colonoscopy Through Stoma
- Colonoscopy With Injection
- Colostomy
- Descending Colectomy
- Dialysis
- Dilation Of Common Hepatic Duct
- Dilation Of Common Hepatic Duct With Stent
- Dilation Of Esophagus
- Drainage Of Bladder
- Duodenum Destruction
- EGD With Dilation
- Endoscopic Biliary Ductal System Catheterization
- Endoscopic Diagnostic Common Bile Duct Excision
- Endoscopic Diagnostic Common Hepatic Duct Excision
- Endoscopic Diagnostic Pancreas Drainage
- Endoscopic Mucosal Resection
- Endoscopic Pancreatic Ductal System Catheterization
- Endoscopic Retrograde Cholangiopancreatography
- Endoscopic Retrograde Cholangiopancreatography With Biopsy
- Endoscopic Retrograde Cholangiopancreatography With Calculi Destruction
- Endoscopic Retrograde Cholangiopancreatography With Calculi Removal
- Endoscopic Retrograde Cholangiopancreatography With Papilla Cannulation
- Endoscopic Stomach Feeding Device Insertion
- Endoscopic Ureteral Stricture Treatment With Laser
- Endoscopy With Biopsy
- Enteroscopy
- Enteroscopy With Bleeding Control
- Ercp With Balloon Dilation
- Esophageal Debridement
- Esophageal Dilation
- Esophagectomy
- Excision Of Ampulla Of Vater
- Excision Of Cecum
- Excision Of Colon
- Excision Of Duodenum
- Excision Of Esophagus
- Excision Of Ileum
- Excision Of Jejunum
- Excision Of Pancreas
- Excision Of Small Intestine
- Excision Of Stomach
- Excision Of Stomach Pylorus
- Extirpation Of Common Hepatic Duct
- Extirpation Of Gallbladder
- Extraction Of Common Hepatic Duct
- Extraction Of Pancreas
- Flexible Colonoscopy With Biopsy
- Flexible Sigmoidoscopy With Biopsy
- Fluoroscopy Of Bile Ducts
- Fluoroscopy Of Stomach
- Gastric Stenting
- Gastric Switch
- Gastroesophageal Reflux Disease
- Gastroesophageal Reflux Test
- Gastrointestinal Motility Study
- Gastrointestinal Tube Placement
- Helicobacter Pylori Stool Test
- Hepatectomy
- Hepatobiliary Duct Inspection
- Hysteroscopic Polyp Resection
- Ileocecal Resection
- Iliopopliteal Bypass
- Incision And Drainage Of Abscess
- Inflammatory Bowel Disease
- Insulin Injection
- Intrahepatic Cholangiogram
- Laparoscopic Small Bowel Resection
- Laparoscopic Splenectomy
- Lower Esophagus Excision
- Lower Gi Endoscopy
- Lower Gi Therapeutic Substance Introduction
- Magnetic Resonance Imaging (MRI)
- Middle Esophagus Restriction
- Neobladder Creation
- Neonatal Abdominal Paracentesis
- Operative Endoscopy
- Percutaneous Cholecystostomy
- Percutaneous Tumor Chemoembolization
- Rectal Excision
- Rectal Stricture Dilation
- Retrograde Cholangiopancreatography
- Rigid Esophagoscopy With Balloon Dilation
- Sclerotherapy Of Esophageal Varices
- Secretin Stimulation Test
- Sigmoid Colectomy
- Sigmoidoscopy With Biopsy
- Sigmoidoscopy With Foreign Body Removal
- Small Intestine Cancer Surgery
- Stent Placement
- Stomach Drainage
- Subtotal Colectomy
- Thyroid Ultrasound With Doppler
- Total Colectomy
- Transhepatic Cholangiogram
- Transrectal Ultrasound
- Transverse Colectomy
- Tube Gastrostomy
- Ultrasonography Of Gastrointestinal Tract
- Unlisted Small Intestine Procedure
- Upper Esophagus Dilation, Endoscopic
- Upper Gi Endoscopy
- Ureterosigmoidostomy
- Urinary Tract Obstruction Treatment
- Urologic Imaging
- Venous Access Device Removal
- Zenker's Diverticulectomy
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
- Beech Street PPO
- Blue Choice Advantage
- Johns Hopkins Advantage MD HMO
- Kaiser Permanente Medicare Plus
- Police and Fire Clinic
- Select HMO/HealthFund/Health Network
- CareFirst BlueChoice HMO
- Coventry Health Care National Network PPO
- CIGNA POS/Network POS
- First Health PPO
- Kaiser Permaenete Signature - Added Choice Cardiac Global
- IH-PPO
- Choice Fund PPO
- Kaiser Permanente Select
- Aetna Advantage 5750
- M.D. IPA (HMO)
- MedStar Family Choice DC Healthcare Alliance
- CareFirst Blue Card Program
- OA Plus
- Lasso Healthcare - Medicare Medical Savings Account
- Choice POS
- IH-Network Only Plus
- UnitedHealthcare Medicare Advantage DSNP District of Columbia
- HumanaChoice Honor's plan PPO
- Anthem Federal Employee Program Basic
- Cigna True Choice Medicare (PPO)
- Anthem Federal Employee Program Standard
- First Health PPO
- Aetna Signature Administrator PPO/TPA
- IH-Open POS II
- Choice Care Network/HUMANA (PPO)
- Employee Health Plan
- Amerigroup DC Healthy Families
- Geisinger Medicare Advantage
- United HealthCare Community Plan - Maryland Health Choice Program
- Johns Hopkins Advantage MD PLUS PPO
- Anthem BCBS Medi Blue SNP
- CareFirst Group Medicare Advantage
- UnitedHealthcare Individual Exchange Plans
- United Healthcare Options (PPO)
- AMERIVANTAGE/Amerigroup Community Care
- IH-Indemnity
- Great-West Healthcare POS/CIGNA
- Coventry Health Care of Virginia
- Optimum Choice Preferred (POS)
- UHC Group Medicare Advantage Plans (HMO, POS, PPO)
- Mamsi Life & Health (Indem./PPO)
- TRICARE for Life East
- Aetna Advantage 6350
- Choice POS II Open Access
- HumanaChoice PPO
- Anthem BCBS of VA HealthKeepers Plus
- CareFirst Blue Choice Opt Out Plus Open Access (POS)
- OCI Direct (HMO)
- Cigna Achieve Medicare (HMO C-SNP)
- United Healthcare Choice
- Medicare Advantage - Advantra Value (PPO)
- Aetna Medicare Advantage HMO & PPO Plans
- IH-Open EPO Plus
- Core Essential (HMO)
- CIGNA Connect EPO
- Medicare Direct
- UnitedHealthcare Medicare Adv. Special Needs Plans
- CareFirst Administrators
- Aetna Traditional Choice (PPO)
- CareFirst EPO
- Aetna Quality Point of Service (POS)
- Kaiser Permanente Select Cardiac Global
- Cigna TotalCare (HMO D-SNP)
- Anthem BCBS of VA HealthKeepers (POS & POS OA)
- Alterwood Advanatge HMO & DSNP Plans
- CIGNA HMO & Network (HMO)
- Optimum Choice
- United Medicare Private Fee-for-Service (PFFS) plans
- MedStar Family Choice DC Healthcare Alliance
- CareFirst Group Medicare Advantage prescription drug benefit (PPO)
- CareFirst MedStar PPO
- Humana Gold Plus HMO
- Private Fee-for-Service Plans (PFFS)
- Kaiser Permanente HMO Plus and DHMO Plus Member
- Aetna Advantage 6350PD
- Anthem BCBS of VA HealthKeepers (HMO)
- Aetna Classic 5000
- Aetna HMO-Open Access/Select OA/HealthFund/Health Network Option OA
- BCBS Out-of-State Medicare Plans (Blue Advantage)
- IH-Open POS Plus
- United Healthcare Choice Plus
- IH-HMO
- United Healthcare Choice Plus Cardiac Global
- Aetna Medicare Advantage PFFS Plan
- IH-POS Plus
- MD IPA (HMO) & MD IPA Preferred Cardiac Global
- Uniformed Services Family Health Plan
- UnitedHealthcare Individual Exchange Plans
- MedStar Family Choice DC Healthy Families
- Erickson Advantage Plans
- CareFirst Blue Choice Opt Out Open Access
- Kaiser Permanente Signature - Added Choice
- M.D. IPA Preferred (POS)
- UHC Passport
- CIGNA EPO
- Kaiser Permanente Medicare Advantage Signature and Select
- Aetna Managed Choice Open Access (POS)
- Options PPO Cardiac Global
- DC/MD SHOP QHP Small Business Plans
- TRICARE East Select
- Network OA
- United Healthcare Community Plan - VA Medicaid MCO
- Sentara Health
- CIGNA HMO Open Access
- Optimum Choice & Optimum Choice Preferred (POS) Cardiac Global
- IH-Open HMO
- HighMark
- Veterans Affairs Community Care Network
- Optima Family Care MCO - VA Medicaid MCO
- Aetna Open Choice (PPO)
- Coventry of Delaware HMO/PPO
- Fee-for-Service (FFS) District of Columbia, Maryland and Virginia Medicaid
- IH-EPO Plus
- United Healthcare Select HMO - EPO/NPP
- Aetna Classic 5000PD
- CareFirst NASCO
- BCBS of Michigan (BCN Advantage,Security Blue, Freedom, Medicare PLUS Blue Group PPO)
- Aetna Better Health of MD
- AmeriHealth Caritas DC Healthy Families
- CareFirst (NCA) Indemnity
- CareFirst Maryland Point of Service Plan
- CIGNA Indemnity
- IH-Open HMO Option
- United Healthcare Select HMO-EPO/NPP Cardiac Global
- TRICARE East Prime
- Johns Hopkins Advantage MD PPO
- Kaiser Permanente Signature
- United Student Resources
- Humana Medicare Advantage - HMO Open Access
- HealthyBlue PPO
- Kaiser Maryland Medicaid MCO
- Aetna Worker's Compensation Network
- Medicare FFS
- Aetna Better Health of VA
- Cigna True Choice Plus Medicare (PPO)
- CareFirst Maryland Indemnity or PPO
- Aetna Elect Choice/ EPO (Aetna Health Fund)
- WellPoint Maryland - Maryland Health Choice
- United Healthcare Navigate Cardiac Global
- HUMANA/Choice Care Medicare Plans (Choice, Gold Choice)
- Navigate
- CIGNA SureFit (HMO)
- Humana Medicare Advantage - PPO
- Aetna Classic 3500
- Aetna Managed Choice (POS)
- CareFirst MedStar Select PPO
- IH-POS
- Kaiser Permanente Flexible Choice 3-tier POS
- CareFirst Blue Preferred PPO
- CareFirst BlueCross BlueShield Advantage Core/Enhanced
- Jai Medical Systems - Maryland Health Choice
- POS OA
- Aetna Basic
- Aetna HMO
- CareFirst FEP Blue Focus
- Mamsi Life & Health (Indem./PPO)
- UnitedHealthcare and AARP Medicare Complete Plans
- United Healthcare Choice Cardiac Global
- Aetna Elect Choice/ Open Access (POS)
- Mamsi Life & Health (Indem./PPO) Cardiac Global
- Aetna VA Exchange
- CIGNA PPO Plus
- IH-Open Network Only Plus
- NYC Medicare Advantage Plus
- Aetna Premier 200PD
- Maryland Physicians Care MCO
- AmeriHealth Caritas DC Healthcare Alliance
- Kaiser Permanente Select - Added Choice
- Anthem BCBS Medi Blue Plus
- Cigna Alliance Medicare (HMO)
- MedStar Family Choice - Maryland Health Choice
- Aetna Student Health Insurance
- Magellan Complete Care of VA - VA Medicaid MCO
- BlueChoice Open Access
- CareFirst Dual Prime HMO-SNP
- Anthem BCBS Medi Blue Dual Adv
- MedStar Family Choice - Maryland Health Choice
- United Healthcare Select Plus (POS)
- Tricare Reserve Select
- MultiPlan, Inc
- Amerigroup DC Alliance
- CareFirst Federal Employee Program (Std. & Basic PPO)
- Healthy Blue (HMO, POS)
- Cigna Preferred Medicare (HMO)
- TriWest Healthcare Alliance
- Kaiser Permanente Flexible Choice POS Cardiac Global
- Advantra Platinum (PPO)
- Anthem BCBS of VA Key Care POS/PPO/Indemnity
- CIGNA PPO
- Health Services for Children with Special Needs
- Private Health Care Systems (PPO)
- CareFirst Community Health Plan of MD
- Priority Partners - Maryland Health Choice
- Fee-for-Service (FFS) District of Columbia, Maryland and Virginia Medicaid
- Choice POS II
Videos
Education
Board Certification: American Board of Internal Medicine, Internal Medicine
Fellowship: Temple University Hospital (2016)
Fellowship: Temple University Hospital (2015)
Fellowship: Temple University Hospital (2012)
Residency: Abington Memorial Hospital (2011)
Medical School: Kamineni Institute of Medical Sciences (2006)
Awards
- Baltimore Magazine, Top Doc, 2023, 2024
Hospital affiliations
News and publications
Heckert, J., Sankineni, A., Hughes, W. B., Harbison, S., & Parkman, H. (2015). Gastric electric stimulation for refractory gastroparesis: A prospective analysis of 151 patients at a single center. Digestive Diseases and Sciences, doi:10.1007/s10620-015-3837-z [doi]
Malik, Z., Sankineni, A., & Parkman, H. P. (2015). Assessing pyloric sphincter pathophysiology using EndoFLIP in patients with gastroparesis. Neurogastroenterology and Motility : The Official Journal of the European Gastrointestinal Motility Society, doi:10.1111/nmo.12522 [doi]
Maranki, J. L., Sankineni, A., Smith, M. S., Klebanov, N., Friedenberg, F. K., Haluszka, O., . . . Parkman, H. P. (2014). Tu1982 practice patterns in the treatment of achalasia: Results of a nationwide survey. Gastroenterology, 146(5), S-889.
Shin, G. H., Sankineni, A., & Parkman, H. P. (2014). Bolus retention in hiatal hernia identified by high-resolution esophageal manometry with impedance. Neurogastroenterology and Motility : The Official Journal of the European Gastrointestinal Motility Society, 26(5), 679-684. doi:10.1111/nmo.12312 [doi]
Keller, D. S., Parkman, H. P., Boucek, D. O., Sankineni, A., Meilahn, J. E., Gaughan, J. P., & Harbison, S. (2013). Surgical outcomes after gastric electric stimulator placement for refractory gastroparesis. Journal of Gastrointestinal Surgery, , 1-7.
Sankineni, A., Salieb, L., Harrison, M., Fisher, R. S., & Parkman, H. P. (2013). Slow esophageal propagation velocity: Association with dysphagia for solids. Neurogastroenterology & Motility, 25(1), e44-e51.
George, N. S., Sankineni, A., & Parkman, H. P. (2012). Small intestinal bacterial overgrowth in gastroparesis. Digestive Diseases and Sciences, , 1-8.
Friedenberg, F. K., Dadabhai, A., Palit, A., & Sankineni, A. (2012). The impact of functional constipation on quality of life of middle-aged black americans: A prospective caseΓÇôcontrol study. Quality of Life Research, 21(10), 1713-1717.
Friedenberg, F. K., Singh, M., George, N. S., Sankineni, A., & Shah, S. (2012). Prevalence and distribution of adenomas in black americans undergoing colorectal cancer screening. Digestive Diseases and Sciences, 57(2), 489-495.
Sachdeva, P., Pathikonda, M., Sankineni, A., Cassilly, D., Harrison, M. J., & Parkman, H. P. (2012). Sa1388 symptom recurrence after stopping proton pump inhibitors (PPIs) in patients undergoing esophageal pH monitoring:ΓÇ£the reverse therapeutic PPI trialΓÇ¥. Gastroenterology, 142(5), S-290.
Sankineni, A., George, N., Harrison, M., & Parkman, H. (2012). Multiple rapid swallows using high resolution esophageal manometry for motor disorders of the esophagus. Paper presented at the , 24 160-160.
Sankineni, A., & Friedenberg, F. K. (2010). M1528: Colorectal cancer screening in african americans 45-49 years old. Gastrointestinal Endoscopy, 71(5), AB245-AB246.
Malik, Z., Sankineni, A., & Parkman, H. P. (2015). Assessing pyloric sphincter pathophysiology using EndoFLIP in patients with gastroparesis. Neurogastroenterology and Motility : The Official Journal of the European Gastrointestinal Motility Society, doi:10.1111/nmo.12522 [doi]
Maranki, J. L., Sankineni, A., Smith, M. S., Klebanov, N., Friedenberg, F. K., Haluszka, O., . . . Parkman, H. P. (2014). Tu1982 practice patterns in the treatment of achalasia: Results of a nationwide survey. Gastroenterology, 146(5), S-889.
Shin, G. H., Sankineni, A., & Parkman, H. P. (2014). Bolus retention in hiatal hernia identified by high-resolution esophageal manometry with impedance. Neurogastroenterology and Motility : The Official Journal of the European Gastrointestinal Motility Society, 26(5), 679-684. doi:10.1111/nmo.12312 [doi]
Keller, D. S., Parkman, H. P., Boucek, D. O., Sankineni, A., Meilahn, J. E., Gaughan, J. P., & Harbison, S. (2013). Surgical outcomes after gastric electric stimulator placement for refractory gastroparesis. Journal of Gastrointestinal Surgery, , 1-7.
Sankineni, A., Salieb, L., Harrison, M., Fisher, R. S., & Parkman, H. P. (2013). Slow esophageal propagation velocity: Association with dysphagia for solids. Neurogastroenterology & Motility, 25(1), e44-e51.
George, N. S., Sankineni, A., & Parkman, H. P. (2012). Small intestinal bacterial overgrowth in gastroparesis. Digestive Diseases and Sciences, , 1-8.
Friedenberg, F. K., Dadabhai, A., Palit, A., & Sankineni, A. (2012). The impact of functional constipation on quality of life of middle-aged black americans: A prospective caseΓÇôcontrol study. Quality of Life Research, 21(10), 1713-1717.
Friedenberg, F. K., Singh, M., George, N. S., Sankineni, A., & Shah, S. (2012). Prevalence and distribution of adenomas in black americans undergoing colorectal cancer screening. Digestive Diseases and Sciences, 57(2), 489-495.
Sachdeva, P., Pathikonda, M., Sankineni, A., Cassilly, D., Harrison, M. J., & Parkman, H. P. (2012). Sa1388 symptom recurrence after stopping proton pump inhibitors (PPIs) in patients undergoing esophageal pH monitoring:ΓÇ£the reverse therapeutic PPI trialΓÇ¥. Gastroenterology, 142(5), S-290.
Sankineni, A., George, N., Harrison, M., & Parkman, H. (2012). Multiple rapid swallows using high resolution esophageal manometry for motor disorders of the esophagus. Paper presented at the , 24 160-160.
Sankineni, A., & Friedenberg, F. K. (2010). M1528: Colorectal cancer screening in african americans 45-49 years old. Gastrointestinal Endoscopy, 71(5), AB245-AB246.