Nadim G. Haddad, MD| Gastroenterology, Pediatric Gastroenterology | MedStar Health
About me
Nadim Haddad, MD, is board certified in internal medicine and gastroenterology. Dr. Haddad serves as physician executive director and regional chief of the Department of Gastroenterology services at MedStar Georgetown University Hospital. Dr. Haddad sees adult patients for conditions affecting the gastrointestinal tract, such as pancreatic and bilary diseases, with a focus on cancer. In addition to adults, Dr. Haddad also attends to pediatric patients for upper gastrointestinal endoscopy.
Dr. Haddad's approach to care focuses on getting to know his patients treating the person, not a disease. His emphasizes hope when patients are facing a serious condition, such a cancer.
Dr. Haddad is also involved in research, focusing in the areas of pancreatic cancer and pancreatic cysts. He was instrumental in developing a pancreatic cyst registry that allows multiple academic medical centers and universities to collaborate and look at the role of molecular profiling.
In addition, Dr. Haddad is active in training the next generation of physicians as an associate professor at Georgetown University. As director of the Gastroenterology Fellowship Program, he was instrumental in it gaining full accreditation.
In his free time, Dr. Haddad is active in the Washington community, involved in his children's schools and with his church.
Clinical areas of focus
- Bile Duct Stones
- Colon Cancer
- Colonoscopy
- Colonoscopy With Injection
- Endoscopic Diagnostic Pancreas Drainage
- Endoscopic Pancreatic Ductal System Catheterization
- Endoscopic Retrograde Cholangiopancreatography
- Endoscopic Retrograde Cholangiopancreatography With Biopsy
- Endoscopic Retrograde Cholangiopancreatography With Calculi Destruction
- Gallstones
- Gastric Cancer
- Pancreatitis
- Rectal Cancer
- Sphincter Of Oddi Dysfunction
- Transrectal Ultrasound
Conditions and procedures
Conditions I treat
- Abdominal Distension
- Abdominal Pain
- Achalasia
- Acute Cholecystitis
- Acute Pancreatitis
- Alimentary Tract Foreign Body
- Anal Fissures
- Angiodysplasia
- Anus And Rectum Diseases
- Aphagia
- Aphagia And Dysphagia
- Appendiceal Cancer
- Benign Neoplasm Of Colon, Rectum, Anus And Anal Canal
- Benign Neoplasm Of Digestive System
- Bezoar
- Bile Duct Cancer
- Bile Duct Stones
- Biliary Tract Disease
- Bowel Obstruction
- Carcinoma In Situ Of Digestive Organs
- Celiac Disease
- Choledocholithiasis
- Colon Cancer
- Colon Disease
- Colon Polyp
- Colon Polyps
- Colonic Polyps
- Colorectal Malignancy
- Congenital Malformations Of Digestive System
- Constipation
- Crohn's Disease
- Crohn's Disease [Regional Enteritis]
- Cyclic Vomiting Syndrome
- 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
- Esophagitis
- Flatulence
- Functional Dyspepsia
- Functional Intestinal Disorders
- Gallbladder Cancer
- Gallbladder Disease
- Gallstones
- Gas And Bloating
- Gastric Cancer
- Gastric Varices
- Gastritis
- Gastroenteritis
- Gastroesophageal Reflux Disease
- Gastroesophageal Reflux Disease (GERD) In Children
- Gastrointestinal Bleeding
- Gastrointestinal Stromal Tumor (GIST)
- Hemorrhoids
- Hepatitis
- Hepatomegaly And Splenomegaly
- Hereditary Hemorrhagic Telangiectasia
- Inflammatory Bowel Disease
- Intestinal Infections
- Intussusception
- Irritable Bowel Syndrome
- Liver Cirrhosis
- Liver Failure
- Liver Fibrosis
- Malabsorption
- Malabsorption Syndrome
- Malignant Neuroendocrine Tumors
- Nausea
- Noninfective Gastroenteritis
- Pancreas Cancer
- Pancreatic Diseases
- Pancreatitis
- Paralytic Ileus And Intestinal Obstruction
- Peptic Ulcer Disease
- Perianal Fistula
- Peripheral Vascular Disease Of The Intestines
- Polycystic Liver Disease
- Rectal Cancer
- Small Intestine Cancer
- Sphincter Of Oddi Dysfunction
- Stomach Cancer
- Stomach Ulcers
- Ulcerative Colitis
- Viral Hepatitis
- Volvulus
- Vomiting
- Zollinger
Procedures I perform
- Biliary Endoscopy With Calculus Removal
- Colonoscopy
- Colonoscopy With Injection
- Dilation Of Common Hepatic Duct With Stent
- Dilation Of Esophagus
- Endoscopic Biliary Ductal System Catheterization
- Endoscopic Diagnostic Common Bile 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
- Enteroscopy
- Enteroscopy With Bleeding Control
- Flexible Colonoscopy With Biopsy
- Flexible Sigmoidoscopy With Biopsy
- Fluoroscopy Of Bile Ducts
- Fluoroscopy Of Stomach
- Gastrointestinal Motility Study
- Hepatobiliary Duct Inspection
- Lower Gi Endoscopy
- Rectal Stricture Dilation
- Sigmoidoscopy With Biopsy
- Transrectal Ultrasound
- Unlisted Biliary Tract Procedure
- Upper Esophagus Dilation, Endoscopic
- 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
- Cigna Achieve Medicare (HMO C-SNP)
- UHC Group Medicare Advantage Plans (HMO, POS, PPO)
- Medicare FFS
- United Student Resources
- Aetna Elect Choice/ EPO (Aetna Health Fund)
- Humana Medicare Advantage - PPO
- Aetna Premier 200PD
- CIGNA HMO Open Access
- MedStar Family Choice - Maryland Health Choice
- CareFirst Blue Preferred PPO
- Jai Medical Systems - Maryland Health Choice
- MedStar Family Choice DC Healthy Families
- CareFirst Administrators
- IH-Open POS II
- CareFirst Dual Prime HMO-SNP
- IH-Network Only Plus
- CareFirst Community Health Plan of MD
- IH-Open HMO Option
- Aetna Worker's Compensation Network
- First Health PPO
- Johns Hopkins Advantage MD PLUS PPO
- Choice Fund PPO
- United Healthcare Select HMO - EPO/NPP
- Aetna Medicare Advantage HMO & PPO Plans
- HealthyBlue PPO
- Aetna Basic
- NYC Medicare Advantage Plus
- M.D. IPA (HMO)
- Options PPO Cardiac Global
- CareFirst Blue Choice Opt Out Open Access
- IH-HMO
- United Healthcare Choice Plus Cardiac Global
- IH-POS Plus
- Anthem Federal Employee Program Standard
- Tricare Reserve Select
- Private Health Care Systems (PPO)
- United Healthcare Select Plus (POS)
- Aetna Classic 5000
- Aetna Advantage 6350
- Cigna TotalCare (HMO D-SNP)
- CIGNA EPO
- Coventry of Delaware HMO/PPO
- UHC Passport
- BCBS Out-of-State Medicare Plans (Blue Advantage)
- Aetna Elect Choice/ Open Access (POS)
- Humana Medicare Advantage - HMO Open Access
- Kaiser Permanente Select Cardiac Global
- CareFirst NASCO
- Coventry Health Care National Network PPO
- Optimum Choice
- BlueChoice Open Access
- United Healthcare Choice Plus
- Aetna Classic 3500
- CareFirst BlueChoice HMO
- Coventry Health Care of Virginia
- MultiPlan, Inc
- Erickson Advantage Plans
- Aetna Traditional Choice (PPO)
- Blue Choice Advantage
- Mamsi Life & Health (Indem./PPO)
- Aetna Student Health Insurance
- Aetna Medicare Advantage PFFS Plan
- AMERIVANTAGE/Amerigroup Community Care
- Beech Street PPO
- United Healthcare Choice
- CareFirst Maryland Indemnity or PPO
- Aetna Managed Choice (POS)
- CIGNA Connect EPO
- AmeriHealth Caritas DC Healthcare Alliance
- Core Essential (HMO)
- DC/MD SHOP QHP Small Business Plans
- Kaiser Permanente Flexible Choice 3-tier POS
- Amerigroup DC Healthy Families
- HumanaChoice PPO
- Anthem Federal Employee Program Basic
- Network OA
- OA Plus
- Kaiser Permanente Select
- Aetna Managed Choice Open Access (POS)
- Uniformed Services Family Health Plan
- IH-Indemnity
- Anthem BCBS of VA HealthKeepers Plus
- Cigna True Choice Medicare (PPO)
- Kaiser Permanente Medicare Plus
- Kaiser Permanente Signature
- Aetna VA Exchange
- Anthem BCBS Medi Blue SNP
- Kaiser Permanente Select - Added Choice
- M.D. IPA Preferred (POS)
- IH-POS
- HighMark
- First Health PPO
- Kaiser Permanente Medicare Advantage Signature and Select
- UnitedHealthcare Medicare Adv. Special Needs Plans
- Optimum Choice & Optimum Choice Preferred (POS) Cardiac Global
- CareFirst MedStar Select PPO
- Maryland Physicians Care MCO
- OCI Direct (HMO)
- Optimum Choice Preferred (POS)
- Kaiser Permaenete Signature - Added Choice Cardiac Global
- Private Fee-for-Service Plans (PFFS)
- Cigna Preferred Medicare (HMO)
- CareFirst FEP Blue Focus
- CIGNA Indemnity
- HUMANA/Choice Care Medicare Plans (Choice, Gold Choice)
- Police and Fire Clinic
- Geisinger Medicare Advantage
- Choice POS II
- CareFirst Federal Employee Program (Std. & Basic PPO)
- CareFirst (NCA) Indemnity
- Priority Partners - Maryland Health Choice
- HumanaChoice Honor's plan PPO
- Sentara Health
- United Medicare Private Fee-for-Service (PFFS) plans
- Veterans Affairs Community Care Network
- CIGNA SureFit (HMO)
- AmeriHealth Caritas DC Healthy Families
- CareFirst MedStar PPO
- TriWest Healthcare Alliance
- Aetna HMO-Open Access/Select OA/HealthFund/Health Network Option OA
- Aetna Quality Point of Service (POS)
- United Healthcare Options (PPO)
- IH-PPO
- MedStar Family Choice DC Healthcare Alliance
- MD IPA (HMO) & MD IPA Preferred Cardiac Global
- IH-Open POS Plus
- Humana Gold Plus HMO
- Aetna HMO
- Aetna Open Choice (PPO)
- CareFirst Blue Choice Opt Out Plus Open Access (POS)
- UnitedHealthcare Individual Exchange Plans
- Kaiser Permanente Signature - Added Choice
- Kaiser Maryland Medicaid MCO
- Magellan Complete Care of VA - VA Medicaid MCO
- Aetna Signature Administrator PPO/TPA
- CareFirst Blue Card Program
- IH-Open Network Only Plus
- Aetna Better Health of MD
- CIGNA PPO
- Johns Hopkins Advantage MD HMO
- Fee-for-Service (FFS) District of Columbia, Maryland and Virginia Medicaid
- Anthem BCBS Medi Blue Dual Adv
- Medicare Advantage - Advantra Value (PPO)
- Healthy Blue (HMO, POS)
- CareFirst Group Medicare Advantage prescription drug benefit (PPO)
- Johns Hopkins Advantage MD PPO
- Medicare Direct
- United HealthCare Community Plan - Maryland Health Choice Program
- IH-EPO Plus
- Anthem BCBS of VA Key Care POS/PPO/Indemnity
- TRICARE East Prime
- IH-Open HMO
- Cigna True Choice Plus Medicare (PPO)
- Advantra Platinum (PPO)
- Great-West Healthcare POS/CIGNA
- Optima Family Care MCO - VA Medicaid MCO
- CareFirst Group Medicare Advantage
- Choice POS
- Cigna Alliance Medicare (HMO)
- BCBS of Michigan (BCN Advantage,Security Blue, Freedom, Medicare PLUS Blue Group PPO)
- Mamsi Life & Health (Indem./PPO) Cardiac Global
- TRICARE East Select
- TRICARE for Life East
- WellPoint Maryland - Maryland Health Choice
- Anthem BCBS of VA HealthKeepers (HMO)
- Kaiser Permanente HMO Plus and DHMO Plus Member
- Aetna Classic 5000PD
- Select HMO/HealthFund/Health Network
- CIGNA HMO & Network (HMO)
- CIGNA PPO Plus
- Aetna Advantage 6350PD
- UnitedHealthcare Medicare Advantage DSNP District of Columbia
- POS OA
- CareFirst EPO
- Kaiser Permanente Flexible Choice POS Cardiac Global
- United Healthcare Navigate Cardiac Global
- United Healthcare Community Plan - VA Medicaid MCO
- Lasso Healthcare - Medicare Medical Savings Account
- Choice Care Network/HUMANA (PPO)
- CareFirst BlueCross BlueShield Advantage Core/Enhanced
- IH-Open EPO Plus
- Employee Health Plan
- Anthem BCBS Medi Blue Plus
- Anthem BCBS of VA HealthKeepers (POS & POS OA)
- CIGNA POS/Network POS
- Navigate
- Aetna Better Health of VA
- United Healthcare Choice Cardiac Global
- Choice POS II Open Access
- Health Services for Children with Special Needs
- Amerigroup DC Alliance
- CareFirst Maryland Point of Service Plan
- Aetna Advantage 5750
- UnitedHealthcare and AARP Medicare Complete Plans
- Alterwood Advanatge HMO & DSNP Plans
- United Healthcare Select HMO-EPO/NPP Cardiac Global
Videos
Education
Fellowship: Georgetown University School of Medicine GME (1994)
Residency: Georgetown University School of Medicine GME (1991)
Medical School: Texas Tech University Health Science Center (1988)
Awards
- Washingtonian Top Doc 2025