Ghassan Abdullah Alzayer, MD| Gastroenterology | MedStar Health
About me
Dr. Alzayer treats patients with all conditions of the gastrointestinal tract. He has a special interest in esophageal diseases and disorders, including gastroesophageal reflux (GERD), Barrett’s esophagus, eosinophilic esophagitis, esophageal strictures, motility disorders.
He uses a variety of diagnostic and treatment procedures including endoscopy, colonoscopy, endoscopic dilation, PEG tube (feeding tube) placement, capsule endoscopy, esophageal PH testing, and high-resolution manometry. Dr. Alzayer is highly experienced in the use of colonoscopy for the removal of polyps, including advanced polyps.
Dr. Alzayer works with each patient to understand the root cause of their symptoms and make an accurate diagnosis. When appropriate, he employs conservative treatment options, like lifestyle changes and pharmacological treatments, to help improve symptoms, before recommending more invasive treatment options.
Dr. Alzayer’s approach to treatment focuses on whole patient care. He listens to his patients in order to understand the root cause of their symptoms and provides a treatment plan tailored to their specific needs that aligns with their treatment goals.
Dr. Alzayer received his medical degree from University of Dammam College of Medicine in Saudi Arabia, where he served as a resident, teaching assistant, and clinical instructor in the Department of Internal Medicine. He then completed his residency training in internal medicine at Baystate Medical Center/University of Massachusetts, in Springfield, Massachusetts, where he served as chief resident. Finally, he completed a gastroenterology fellowship at Medstar Georgetown University Hospital.
He is a member of the American Society for Gastrointestinal Endoscopy, the American Gastrointestinal Association, and the American College of Gastroenterology.
Dr. Alzayer is fluent in English and Arabic.
Clinical areas of focus
- Capsule Endoscopy
- Colonoscopy With Biopsy
- Diverticular Disease
- Diverticulitis
- Endoscopy
- Enteroscopy With Bleeding Control
- Gastric Manometry
- Gastroesophageal Reflux Disease (GERD) In Children
- Intestinal Dysmotility
- Irritable Bowel Syndrome
- Lower Gi Endoscopy
- Sigmoidoscopy With Biopsy
- Stomach Ulcers
- Upper Gi Endoscopy
Conditions and procedures
Conditions I treat
- Abdominal Cramping
- Abdominal Distension
- Abdominal Pain
- Abnormal Stool
- Achalasia
- Acute Pancreatitis
- Alimentary Tract Foreign Body
- Altered Bowel Habits
- Anal Abscess
- 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
- Carcinoma In Situ Of Digestive Organs
- Celiac Disease
- Choledocholithiasis
- Chronic Constipation
- Colitis
- Colon Cancer
- Colon Disease
- Colon Polyps
- Colonic Diverticulosis
- Colonoscopy
- Colorectal Malignancy
- Constipation
- Crohn's Disease
- Crohn's Disease [Regional Enteritis]
- Diabetic Gastroparesis
- Diaphragmatic Hernia
- Digestive System Complications
- Digestive System Diseases
- Digestive System Symptoms
- Diseases Of Esophagus
- Diseases Of Stomach And Duodenum
- Diverticular Disease
- Diverticulitis
- Duodenal Ulcer
- Duodenitis
- Dysphagia
- Esophageal Cancer
- Esophageal Hernia
- Esophageal Stricture
- Esophagitis
- External Hemorrhoids
- Flatulence
- Functional Dyspepsia
- Functional Intestinal Disorders
- Gallbladder Cancer
- Gallbladder Disease
- Gas And Bloating
- Gastric Cancer
- Gastric Varices
- Gastritis
- Gastroenteritis
- Gastroesophageal Reflux Disease
- Gastroesophageal Reflux Disease (GERD) In Children
- Gastrointestinal Bleeding
- Gastrointestinal Stromal Tumor (GIST)
- H. Pylori Infection
- Hemangioma
- Hepatitis
- Hepatitis B
- Hepatitis C
- Hepatomegaly
- Hepatomegaly And Splenomegaly
- Intestinal Dysmotility
- Intestinal Infections
- Intestinal Stenosis
- Irritable Bowel Syndrome
- Jaundice
- Lactose Intolerance
- Liver Cirrhosis
- Liver Failure
- Liver Fibrosis
- Lower Esophageal Sphincter Dysfunction
- Malabsorption
- Malignant Neuroendocrine Tumors
- Noninfective Gastroenteritis
- Pancreatic Diseases
- Paralytic Ileus And Intestinal Obstruction
- Perianal Fistula
- Perianal Pain
- Peripheral Vascular Disease Of The Intestines
- Polycystic Liver Disease
- Portal Hypertension
- Postprandial Diarrhea
- Primary Sclerosing Cholangitis (PSC)
- Rectal Cancer
- Rectal Pain
- Small Intestine Cancer
- Stomach Cancer
- Stomach Ulcers
- Swallowing Disorders
- Ulcerative Colitis
- Viral Hepatitis
- Vomiting And Nausea
Procedures I perform
- Capsule Endoscopy
- Colonoscopy
- Colonoscopy Through Stoma
- Colonoscopy With Biopsy
- Colonoscopy With Injection
- Endoscopic Mucosal Resection
- Endoscopic Retrograde Cholangiopancreatography (ERCP)
- Endoscopic Stomach Feeding Device Insertion
- Endoscopy
- Enteroscopy
- Enteroscopy With Bleeding Control
- Esophageal Dilation
- Esophageal PH Monitoring
- Esophagogastroduodenoscopy With Biopsy
- Flexible Colonoscopy With Biopsy
- Gastric Manometry
- Gastroesophageal Reflux Test
- Gastrointestinal Motility Study
- Lower Gi Endoscopy
- Lower Gi Therapeutic Substance Introduction
- Sigmoidoscopy With Biopsy
- Transrectal Ultrasound
- Upper Gi Endoscopy
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
- Choice POS II
- POS OA
- Anthem BCBS of VA Key Care POS/PPO/Indemnity
- Cigna TotalCare (HMO D-SNP)
- Johns Hopkins Advantage MD PLUS PPO
- Kaiser Permanente Signature - Added Choice
- Aetna Managed Choice Open Access (POS)
- CareFirst BlueChoice HMO
- CareFirst Blue Choice Opt Out Open Access
- TriWest Healthcare Alliance
- IH-PPO
- Beech Street PPO
- Health Services for Children with Special Needs
- Veterans Affairs Community Care Network
- OA Plus
- IH-Network Only Plus
- BCBS of Michigan (BCN Advantage,Security Blue, Freedom, Medicare PLUS Blue Group PPO)
- Anthem BCBS Medi Blue Plus
- HumanaChoice PPO
- Aetna Open Choice (PPO)
- AmeriHealth Caritas DC Healthy Families
- IH-HMO
- Aetna Medicare Advantage PFFS Plan
- United Healthcare Choice Plus
- Kaiser Permanente Medicare Plus
- M.D. IPA (HMO)
- M.D. IPA Preferred (POS)
- MD IPA (HMO) & MD IPA Preferred Cardiac Global
- Aetna Advantage 5750
- IH-Indemnity
- Anthem Federal Employee Program Basic
- Aetna Student Health Insurance
- Anthem BCBS Medi Blue Dual Adv
- MultiPlan, Inc
- Aetna Signature Administrator PPO/TPA
- United Healthcare Choice
- Private Health Care Systems (PPO)
- Choice Fund PPO
- CIGNA POS/Network POS
- UnitedHealthcare Medicare Adv. Special Needs Plans
- Blue Choice Advantage
- Aetna VA Exchange
- CareFirst Group Medicare Advantage
- Aetna Elect Choice/ Open Access (POS)
- UHC Group Medicare Advantage Plans (HMO, POS, PPO)
- Humana Medicare Advantage - HMO Open Access
- Optimum Choice
- Cigna Achieve Medicare (HMO C-SNP)
- Cigna True Choice Plus Medicare (PPO)
- UnitedHealthcare Medicare Advantage DSNP District of Columbia
- United Healthcare Select HMO - EPO/NPP
- HighMark
- Medicare Advantage - Advantra Value (PPO)
- Anthem BCBS of VA HealthKeepers Plus
- Humana Medicare Advantage - PPO
- UHC Passport
- IH-Open Network Only Plus
- UnitedHealthcare and AARP Medicare Complete Plans
- Aetna Managed Choice (POS)
- IH-EPO Plus
- MedStar Family Choice - Maryland Health Choice
- Anthem BCBS of VA HealthKeepers (HMO)
- IH-Open POS Plus
- Aetna Better Health of MD
- BlueChoice Open Access
- DC/MD SHOP QHP Small Business Plans
- Aetna Medicare Advantage HMO & PPO Plans
- Options PPO Cardiac Global
- CareFirst Administrators
- Humana Gold Plus HMO
- OCI Direct (HMO)
- Magellan Complete Care of VA - VA Medicaid MCO
- Sentara Health
- HumanaChoice Honor's plan PPO
- Kaiser Maryland Medicaid MCO
- Aetna Worker's Compensation Network
- Choice Care Network/HUMANA (PPO)
- Great-West Healthcare POS/CIGNA
- United Healthcare Community Plan - VA Medicaid MCO
- CareFirst Blue Card Program
- IH-Open HMO
- WellPoint Maryland - Maryland Health Choice
- MedStar Family Choice DC Healthy Families
- CareFirst (NCA) Indemnity
- CIGNA HMO & Network (HMO)
- Employee Health Plan
- CIGNA PPO
- Erickson Advantage Plans
- United HealthCare Community Plan - Maryland Health Choice Program
- Aetna Better Health of VA
- Coventry Health Care of Virginia
- Navigate
- AmeriHealth Caritas DC Healthcare Alliance
- CareFirst Dual Prime HMO-SNP
- Kaiser Permanente Signature
- Aetna Premier 200PD
- Johns Hopkins Advantage MD HMO
- NYC Medicare Advantage Plus
- Kaiser Permanente Flexible Choice 3-tier POS
- CareFirst EPO
- Choice POS II Open Access
- CareFirst Blue Preferred PPO
- Private Fee-for-Service Plans (PFFS)
- CareFirst Blue Choice Opt Out Plus Open Access (POS)
- HUMANA/Choice Care Medicare Plans (Choice, Gold Choice)
- CIGNA SureFit (HMO)
- United Healthcare Select Plus (POS)
- IH-Open POS II
- CareFirst Maryland Indemnity or PPO
- Optima Family Care MCO - VA Medicaid MCO
- Kaiser Permanente Flexible Choice POS Cardiac Global
- Kaiser Permanente Select Cardiac Global
- Optimum Choice & Optimum Choice Preferred (POS) Cardiac Global
- Aetna HMO
- CareFirst Maryland Point of Service Plan
- Cigna Alliance Medicare (HMO)
- Tricare Reserve Select
- United Healthcare Choice Plus Cardiac Global
- Aetna Traditional Choice (PPO)
- AMERIVANTAGE/Amerigroup Community Care
- CareFirst FEP Blue Focus
- Mamsi Life & Health (Indem./PPO)
- MedStar Family Choice DC Healthcare Alliance
- United Healthcare Select HMO-EPO/NPP Cardiac Global
- IH-Open EPO Plus
- IH-POS Plus
- Cigna Preferred Medicare (HMO)
- Maryland Physicians Care MCO
- United Healthcare Options (PPO)
- United Healthcare Navigate Cardiac Global
- Anthem Federal Employee Program Standard
- Kaiser Permaenete Signature - Added Choice Cardiac Global
- Aetna HMO-Open Access/Select OA/HealthFund/Health Network Option OA
- Network OA
- CareFirst MedStar Select PPO
- First Health PPO
- Anthem BCBS Medi Blue SNP
- Medicare FFS
- Aetna Classic 3500
- Lasso Healthcare - Medicare Medical Savings Account
- First Health PPO
- Aetna Basic
- Healthy Blue (HMO, POS)
- United Medicare Private Fee-for-Service (PFFS) plans
- TRICARE East Select
- Aetna Elect Choice/ EPO (Aetna Health Fund)
- Amerigroup DC Alliance
- Coventry of Delaware HMO/PPO
- CIGNA Indemnity
- Aetna Advantage 6350
- CareFirst Group Medicare Advantage prescription drug benefit (PPO)
- TRICARE for Life East
- Alterwood Advanatge HMO & DSNP Plans
- Cigna True Choice Medicare (PPO)
- Kaiser Permanente Select
- Kaiser Permanente Select - Added Choice
- Geisinger Medicare Advantage
- Aetna Classic 5000PD
- Police and Fire Clinic
- CareFirst Federal Employee Program (Std. & Basic PPO)
- Aetna Quality Point of Service (POS)
- Optimum Choice Preferred (POS)
- UnitedHealthcare Individual Exchange Plans
- Mamsi Life & Health (Indem./PPO) Cardiac Global
- IH-POS
- Choice POS
- TRICARE East Prime
- CareFirst NASCO
- Core Essential (HMO)
- Jai Medical Systems - Maryland Health Choice
- Anthem BCBS of VA HealthKeepers (POS & POS OA)
- IH-Open HMO Option
- CIGNA Connect EPO
- CareFirst MedStar PPO
- Amerigroup DC Healthy Families
- CIGNA EPO
- United Healthcare Choice Cardiac Global
- CareFirst Community Health Plan of MD
- Kaiser Permanente Medicare Advantage Signature and Select
- Johns Hopkins Advantage MD PPO
- CareFirst BlueCross BlueShield Advantage Core/Enhanced
- United Student Resources
- BCBS Out-of-State Medicare Plans (Blue Advantage)
- CIGNA PPO Plus
- Aetna Advantage 6350PD
- Aetna Classic 5000
- Coventry Health Care National Network PPO
- HealthyBlue PPO
- Fee-for-Service (FFS) District of Columbia, Maryland and Virginia Medicaid
- Select HMO/HealthFund/Health Network
- Priority Partners - Maryland Health Choice
- CIGNA HMO Open Access
- Uniformed Services Family Health Plan
- Medicare Direct
- Advantra Platinum (PPO)
- Kaiser Permanente HMO Plus and DHMO Plus Member
Education
Board Certification: American Board of Internal Medicine, Gastroenterology
Fellowship: MedStar Georgetown University Hospital (2021)
Residency: Baystate Medical Center (2018)
Medical School: King Faisal University (2010)