William Park, MD| Gastroenterology | MedStar Health
About me
Dr. Park is a board-certified, fellowship-trained gastroenterologist who sees patients for all conditions of the gastrointestinal tract. He has multiple areas of special interest including MASLD (metabolic associated steatotic liver disease), IBD (inflammatory bowel disease), eosinophilic esophagitis, gastric and colon cancer screening, and H pylori associated diseases.
Dr. Park has advanced training in gastric and colon cancer screening from the University of Tokyo Hospital and was the recipient of the CCFA Visiting IBD Fellowship Award where he completed specialized education in inflammatory bowel disease through the Crohn’s & Colitis Foundation at Mount Sinai in New York City. He has regularly presented his research at national conferences including the American College of Gastroenterology, Digestive Disease Week, and the American Association for the Study of Liver Diseases and is a member of the American College of Gastroenterology, American Society for Gastrointestinal Endoscopy, and the American Gastrointestinal Association.
He received his medical degree from Drexel University College of Medicine in Philadelphia and completed his residency at Boston Medical Center. Dr. Park completed his fellowship in gastroenterology at Brown University – Warren Alpert Medical School in Rhode Island.
Dr. Park is committed to providing comprehensive care to his patients and treating them with respect. He strongly believes that good medicine begins with empathy—understanding the person behind the symptoms, empowering his patients with knowledge and support, and collaborating on care that truly fits their life.
When he’s not working, Dr. Park enjoys running marathons, playing soccer, hiking, and listening to classical music.
Clinical areas of focus
- Abdominal Pain
- Digestive System Symptoms
- Gallstones
- Gastritis
- Hemorrhoids
Conditions and procedures
Conditions I treat
- Abdominal Pain
- Abnormal Stool
- Achalasia
- Acute Pancreatitis
- Alimentary Tract Foreign Body
- Anus And Rectum Diseases
- Aphagia And Dysphagia
- Barrett's Esophagus
- Benign Neoplasm Of Colon, Rectum, Anus And Anal Canal
- Benign Neoplasm Of Digestive System
- Bile Duct Stones
- Blood In Stool
- Bowel Obstruction
- Chronic Constipation
- Chronic Diarrhea
- Colitis
- Colon Cancer
- Colon Polyps
- Congenital Malformations Of Digestive System
- Crohn's Disease
- Crohn's Disease [Regional Enteritis]
- Diaphragmatic Hernia
- Digestive System Complications
- Digestive System Diseases
- Digestive System Symptoms
- Diseases Of Esophagus
- Diseases Of Stomach And Duodenum
- Diverticulitis
- Duodenal Ulcer
- Duodenitis
- Dysphagia
- Epigastric Pain
- Esophageal Cancer
- Esophageal Stricture
- Esophagitis
- Flatulence
- Functional Dyspepsia
- Functional Intestinal Disorders
- Gallbladder Disease
- Gallstones
- Gastric Cancer
- Gastritis
- Gastrointestinal Bleeding
- Helicobacter Pylori
- Hemorrhoids
- Hepatitis C
- Hepatomegaly
- Hepatomegaly And Splenomegaly
- Jaundice
- Liver Cirrhosis
- Liver Failure
- Liver Fibrosis
- Malabsorption
- Melena
- Nausea
- Noninfective Gastroenteritis
- Pancreatitis
- Paralytic Ileus And Intestinal Obstruction
- Peptic Ulcer Disease
- Perianal Fistula
- Portal Hypertension
- Postprandial Diarrhea
- Primary Sclerosing Cholangitis
- Proctitis
- Rectal Cancer
- Rectal Pain
- Regional Enteritis
- Small Intestine Cancer
- Stomach Cancer
- Stomach Cramps
- Stomach Ulcers
- Ulcerative Colitis
- Viral Hepatitis
- Vomiting
Procedures I perform
- Capsule Endoscopy
- Celiac Disease Treatment
- Colonoscopy Through Stoma
- Colonoscopy With Biopsy
- Diarrhea Treatment
- Dilation Of Esophagus
- Endoscopic Mucosal Resection
- Endoscopic Retrograde Cholangiopancreatography
- Endoscopic Retrograde Cholangiopancreatography (ERCP)
- Endoscopic Submucosal Dissection
- Enteroscopy
- Esophageal Dilation
- Esophageal PH Monitoring
- Esophagogastroduodenoscopy With Biopsy
- Fecal Microbiota Transplant
- Fecal Transplant
- Flexible Colonoscopy With Biopsy
- Gastrointestinal Biopsy
- Gastrointestinal Foreign Body Removal
- Gastrointestinal Motility Study
- Gastrostomy
- Hydrogen Breath Test
- Intestinal Biopsy
- Irritable Bowel Syndrome Treatment
- Lactose Breath Test
- Lactose Intolerance Testing
- Lower Gi Endoscopy
- Pancreatitis Treatment
- PH Monitoring
- Radiofrequency Ablation
- Rectal Biopsy
- Retrograde Cholangiopancreatography
- Sigmoidoscopy With Biopsy
- Stomach Pain Treatment
- Swallowing Disorder Treatment
- Upper Endoscopy
- 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
- Coventry of Delaware HMO/PPO
- Anthem BCBS of VA HealthKeepers Plus
- HighMark
- Great-West Healthcare POS/CIGNA
- MedStar Family Choice - Maryland Health Choice
- Private Fee-for-Service Plans (PFFS)
- Cigna True Choice Medicare (PPO)
- Amerigroup DC Healthy Families
- UnitedHealthcare Individual Exchange Plans
- IH-Open EPO Plus
- IH-Open Network Only Plus
- Aetna Advantage 6350PD
- Aetna Managed Choice Open Access (POS)
- Optimum Choice & Optimum Choice Preferred (POS) Cardiac Global
- M.D. IPA (HMO)
- BlueChoice Open Access
- Core Essential (HMO)
- AMERIVANTAGE/Amerigroup Community Care
- AmeriHealth Caritas DC Healthy Families
- CareFirst Maryland Indemnity or PPO
- CareFirst Group Medicare Advantage prescription drug benefit (PPO)
- Anthem BCBS of VA HealthKeepers (POS & POS OA)
- Healthy Blue (HMO, POS)
- Aetna Medicare Advantage PFFS Plan
- WellPoint Maryland - Maryland Health Choice
- CareFirst Group Medicare Advantage
- UnitedHealthcare Medicare Advantage DSNP District of Columbia
- Optima Family Care MCO - VA Medicaid MCO
- United Healthcare Choice Cardiac Global
- Aetna Advantage 5750
- Blue Choice Advantage
- Aetna Traditional Choice (PPO)
- Maryland Physicians Care MCO
- Choice POS
- HealthyBlue PPO
- Kaiser Permanente Flexible Choice 3-tier POS
- United HealthCare Community Plan - Maryland Health Choice Program
- CIGNA PPO Plus
- Aetna Student Health Insurance
- Kaiser Permanente Medicare Advantage Signature and Select
- Aetna Premier 200PD
- Anthem Federal Employee Program Basic
- Optimum Choice
- IH-Indemnity
- Choice Care Network/HUMANA (PPO)
- Kaiser Permanente Select Cardiac Global
- Cigna True Choice Plus Medicare (PPO)
- Amerigroup DC Alliance
- Aetna Advantage 6350
- TRICARE East Select
- United Healthcare Community Plan - VA Medicaid MCO
- CareFirst Blue Card Program
- UnitedHealthcare and AARP Medicare Complete Plans
- Police and Fire Clinic
- Aetna Better Health of MD
- Lasso Healthcare - Medicare Medical Savings Account
- Aetna Basic
- Anthem Federal Employee Program Standard
- Cigna TotalCare (HMO D-SNP)
- Advantra Platinum (PPO)
- CareFirst BlueChoice HMO
- Aetna HMO-Open Access/Select OA/HealthFund/Health Network Option OA
- United Healthcare Choice Plus
- Network OA
- CareFirst MedStar PPO
- Johns Hopkins Advantage MD HMO
- Aetna Classic 5000PD
- Choice POS II Open Access
- IH-PPO
- CareFirst FEP Blue Focus
- CareFirst EPO
- Kaiser Maryland Medicaid MCO
- MedStar Family Choice DC Healthy Families
- MD IPA (HMO) & MD IPA Preferred Cardiac Global
- UHC Passport
- United Student Resources
- TRICARE East Prime
- Mamsi Life & Health (Indem./PPO)
- Erickson Advantage Plans
- United Healthcare Select HMO - EPO/NPP
- Kaiser Permaenete Signature - Added Choice Cardiac Global
- Medicare Advantage - Advantra Value (PPO)
- Kaiser Permanente Medicare Plus
- Humana Medicare Advantage - PPO
- First Health PPO
- Anthem BCBS Medi Blue Plus
- IH-POS Plus
- Jai Medical Systems - Maryland Health Choice
- Aetna Elect Choice/ Open Access (POS)
- Beech Street PPO
- CIGNA HMO Open Access
- Kaiser Permanente Signature - Added Choice
- United Healthcare Select HMO-EPO/NPP Cardiac Global
- Aetna Worker's Compensation Network
- CareFirst NASCO
- CareFirst Community Health Plan of MD
- Mamsi Life & Health (Indem./PPO) Cardiac Global
- Aetna Better Health of VA
- BCBS of Michigan (BCN Advantage,Security Blue, Freedom, Medicare PLUS Blue Group PPO)
- United Healthcare Choice Plus Cardiac Global
- Aetna Open Choice (PPO)
- CIGNA Connect EPO
- Aetna Classic 3500
- OA Plus
- Optimum Choice Preferred (POS)
- CareFirst Maryland Point of Service Plan
- United Healthcare Navigate Cardiac Global
- First Health PPO
- Humana Gold Plus HMO
- IH-POS
- Aetna Managed Choice (POS)
- Kaiser Permanente Flexible Choice POS Cardiac Global
- Aetna Quality Point of Service (POS)
- Kaiser Permanente Signature
- DC/MD SHOP QHP Small Business Plans
- IH-Open HMO
- MedStar Family Choice DC Healthcare Alliance
- Navigate
- Medicare FFS
- Aetna VA Exchange
- CareFirst Blue Choice Opt Out Open Access
- AmeriHealth Caritas DC Healthcare Alliance
- Cigna Achieve Medicare (HMO C-SNP)
- TRICARE for Life East
- United Healthcare Options (PPO)
- UnitedHealthcare Medicare Adv. Special Needs Plans
- Aetna HMO
- CIGNA PPO
- Cigna Preferred Medicare (HMO)
- Private Health Care Systems (PPO)
- United Healthcare Choice
- Aetna Classic 5000
- Aetna Medicare Advantage HMO & PPO Plans
- CIGNA SureFit (HMO)
- Aetna Elect Choice/ EPO (Aetna Health Fund)
- Employee Health Plan
- Sentara Health
- M.D. IPA Preferred (POS)
- Medicare Direct
- CareFirst BlueCross BlueShield Advantage Core/Enhanced
- NYC Medicare Advantage Plus
- Aetna Signature Administrator PPO/TPA
- Johns Hopkins Advantage MD PLUS PPO
- MultiPlan, Inc
- Coventry Health Care National Network PPO
- IH-EPO Plus
- IH-Open POS Plus
- CareFirst Blue Preferred PPO
- HUMANA/Choice Care Medicare Plans (Choice, Gold Choice)
- Humana Medicare Advantage - HMO Open Access
- Kaiser Permanente HMO Plus and DHMO Plus Member
- Tricare Reserve Select
- TriWest Healthcare Alliance
- IH-Network Only Plus
- Choice POS II
- Kaiser Permanente Select
- CIGNA EPO
- Anthem BCBS Medi Blue SNP
- CareFirst Federal Employee Program (Std. & Basic PPO)
- OCI Direct (HMO)
- IH-Open POS II
- CareFirst (NCA) Indemnity
- Coventry Health Care of Virginia
- IH-Open HMO Option
- Kaiser Permanente Select - Added Choice
- Options PPO Cardiac Global
- CareFirst Administrators
- Uniformed Services Family Health Plan
- Choice Fund PPO
- CIGNA POS/Network POS
- Priority Partners - Maryland Health Choice
- UHC Group Medicare Advantage Plans (HMO, POS, PPO)
- Select HMO/HealthFund/Health Network
- CIGNA Indemnity
- Anthem BCBS of VA Key Care POS/PPO/Indemnity
- Veterans Affairs Community Care Network
- Anthem BCBS Medi Blue Dual Adv
- Magellan Complete Care of VA - VA Medicaid MCO
- BCBS Out-of-State Medicare Plans (Blue Advantage)
- CareFirst Dual Prime HMO-SNP
- Cigna Alliance Medicare (HMO)
- IH-HMO
- United Healthcare Select Plus (POS)
- CareFirst Blue Choice Opt Out Plus Open Access (POS)
- CIGNA HMO & Network (HMO)
- Geisinger Medicare Advantage
- POS OA
- CareFirst MedStar Select PPO
- United Medicare Private Fee-for-Service (PFFS) plans
- Fee-for-Service (FFS) District of Columbia, Maryland and Virginia Medicaid
- Johns Hopkins Advantage MD PPO
- Alterwood Advanatge HMO & DSNP Plans
- Health Services for Children with Special Needs
- Anthem BCBS of VA HealthKeepers (HMO)
- HumanaChoice Honor's plan PPO
- HumanaChoice PPO
Education
Fellowship: Brown University (2025)
Residency: Boston University Medical Center (2022)
Medical School: Drexel University College of Medicine (2019)