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
- Health Services for Children with Special Needs
- Medicare Direct
- Cigna Preferred Medicare (HMO)
- United Healthcare Select HMO-EPO/NPP Cardiac Global
- Aetna Basic
- CIGNA HMO & Network (HMO)
- CIGNA HMO Open Access
- Kaiser Permanente Medicare Advantage Signature and Select
- MedStar Family Choice DC Healthcare Alliance
- United Healthcare Navigate Cardiac Global
- First Health PPO
- Maryland Physicians Care MCO
- United Student Resources
- United Healthcare Community Plan - VA Medicaid MCO
- Choice POS
- CareFirst Blue Choice Opt Out Plus Open Access (POS)
- Lasso Healthcare - Medicare Medical Savings Account
- TRICARE East Select
- CareFirst Federal Employee Program (Std. & Basic PPO)
- Aetna Classic 3500
- Aetna HMO-Open Access/Select OA/HealthFund/Health Network Option OA
- Anthem BCBS Medi Blue SNP
- WellPoint Maryland - Maryland Health Choice
- IH-EPO Plus
- Cigna True Choice Plus Medicare (PPO)
- Navigate
- M.D. IPA Preferred (POS)
- Veterans Affairs Community Care Network
- CareFirst Blue Choice Opt Out Open Access
- Jai Medical Systems - Maryland Health Choice
- Sentara Health
- Blue Choice Advantage
- Amerigroup DC Healthy Families
- Choice Care Network/HUMANA (PPO)
- Kaiser Permanente Flexible Choice POS Cardiac Global
- IH-Open POS II
- Johns Hopkins Advantage MD PLUS PPO
- MultiPlan, Inc
- Optimum Choice
- BCBS Out-of-State Medicare Plans (Blue Advantage)
- Aetna Elect Choice/ Open Access (POS)
- CareFirst (NCA) Indemnity
- Cigna Alliance Medicare (HMO)
- Kaiser Permanente Flexible Choice 3-tier POS
- Core Essential (HMO)
- Uniformed Services Family Health Plan
- CareFirst BlueCross BlueShield Advantage Core/Enhanced
- Kaiser Permanente Select
- IH-Network Only Plus
- Beech Street PPO
- UHC Group Medicare Advantage Plans (HMO, POS, PPO)
- Aetna Open Choice (PPO)
- Advantra Platinum (PPO)
- Anthem BCBS of VA Key Care POS/PPO/Indemnity
- Johns Hopkins Advantage MD PPO
- Kaiser Permanente HMO Plus and DHMO Plus Member
- POS OA
- First Health PPO
- United Medicare Private Fee-for-Service (PFFS) plans
- Aetna Traditional Choice (PPO)
- Kaiser Permanente Select Cardiac Global
- CareFirst Maryland Point of Service Plan
- BCBS of Michigan (BCN Advantage,Security Blue, Freedom, Medicare PLUS Blue Group PPO)
- Aetna Managed Choice (POS)
- HighMark
- Tricare Reserve Select
- CareFirst Administrators
- Optimum Choice & Optimum Choice Preferred (POS) Cardiac Global
- Aetna Classic 5000PD
- IH-Open Network Only Plus
- TRICARE for Life East
- Choice POS II
- Anthem BCBS of VA HealthKeepers (HMO)
- Medicare Advantage - Advantra Value (PPO)
- AmeriHealth Caritas DC Healthy Families
- Anthem BCBS of VA HealthKeepers (POS & POS OA)
- Erickson Advantage Plans
- Magellan Complete Care of VA - VA Medicaid MCO
- United Healthcare Choice Cardiac Global
- Aetna Advantage 5750
- Optimum Choice Preferred (POS)
- IH-HMO
- Anthem BCBS Medi Blue Plus
- Choice Fund PPO
- Private Fee-for-Service Plans (PFFS)
- Mamsi Life & Health (Indem./PPO)
- UnitedHealthcare and AARP Medicare Complete Plans
- Private Health Care Systems (PPO)
- CareFirst Blue Preferred PPO
- Aetna Elect Choice/ EPO (Aetna Health Fund)
- United Healthcare Choice Plus Cardiac Global
- MD IPA (HMO) & MD IPA Preferred Cardiac Global
- IH-Open EPO Plus
- Anthem BCBS Medi Blue Dual Adv
- United Healthcare Options (PPO)
- IH-POS
- CIGNA SureFit (HMO)
- Aetna HMO
- United Healthcare Select Plus (POS)
- Medicare FFS
- Geisinger Medicare Advantage
- Kaiser Permanente Select - Added Choice
- Kaiser Permanente Signature
- NYC Medicare Advantage Plus
- CareFirst FEP Blue Focus
- CareFirst EPO
- Anthem BCBS of VA HealthKeepers Plus
- CareFirst MedStar Select PPO
- CIGNA Connect EPO
- Humana Medicare Advantage - HMO Open Access
- AmeriHealth Caritas DC Healthcare Alliance
- Coventry Health Care of Virginia
- UnitedHealthcare Medicare Advantage DSNP District of Columbia
- Aetna Classic 5000
- CareFirst Group Medicare Advantage
- CIGNA POS/Network POS
- Cigna True Choice Medicare (PPO)
- DC/MD SHOP QHP Small Business Plans
- TRICARE East Prime
- Aetna Advantage 6350PD
- Humana Gold Plus HMO
- AMERIVANTAGE/Amerigroup Community Care
- CIGNA Indemnity
- Aetna Better Health of MD
- CareFirst Dual Prime HMO-SNP
- IH-POS Plus
- Kaiser Maryland Medicaid MCO
- CareFirst Blue Card Program
- CareFirst Group Medicare Advantage prescription drug benefit (PPO)
- HUMANA/Choice Care Medicare Plans (Choice, Gold Choice)
- HumanaChoice PPO
- IH-Open HMO
- Aetna VA Exchange
- TriWest Healthcare Alliance
- Aetna Student Health Insurance
- IH-Indemnity
- Humana Medicare Advantage - PPO
- Mamsi Life & Health (Indem./PPO) Cardiac Global
- CareFirst MedStar PPO
- Choice POS II Open Access
- Healthy Blue (HMO, POS)
- HumanaChoice Honor's plan PPO
- Coventry of Delaware HMO/PPO
- Aetna Quality Point of Service (POS)
- Aetna Worker's Compensation Network
- Coventry Health Care National Network PPO
- MedStar Family Choice DC Healthy Families
- Kaiser Permaenete Signature - Added Choice Cardiac Global
- Amerigroup DC Alliance
- Cigna TotalCare (HMO D-SNP)
- Select HMO/HealthFund/Health Network
- CareFirst BlueChoice HMO
- UHC Passport
- OA Plus
- OCI Direct (HMO)
- CareFirst Community Health Plan of MD
- UnitedHealthcare Medicare Adv. Special Needs Plans
- MedStar Family Choice - Maryland Health Choice
- Options PPO Cardiac Global
- IH-Open POS Plus
- Aetna Medicare Advantage PFFS Plan
- Kaiser Permanente Medicare Plus
- Police and Fire Clinic
- Anthem Federal Employee Program Standard
- Anthem Federal Employee Program Basic
- Priority Partners - Maryland Health Choice
- United HealthCare Community Plan - Maryland Health Choice Program
- Alterwood Advanatge HMO & DSNP Plans
- United Healthcare Choice Plus
- Aetna Advantage 6350
- Aetna Premier 200PD
- M.D. IPA (HMO)
- UnitedHealthcare Individual Exchange Plans
- United Healthcare Choice
- Aetna Medicare Advantage HMO & PPO Plans
- CareFirst NASCO
- Cigna Achieve Medicare (HMO C-SNP)
- Aetna Managed Choice Open Access (POS)
- CIGNA EPO
- BlueChoice Open Access
- Kaiser Permanente Signature - Added Choice
- CIGNA PPO Plus
- Fee-for-Service (FFS) District of Columbia, Maryland and Virginia Medicaid
- IH-Open HMO Option
- Aetna Signature Administrator PPO/TPA
- Great-West Healthcare POS/CIGNA
- Employee Health Plan
- United Healthcare Select HMO - EPO/NPP
- IH-PPO
- Aetna Better Health of VA
- CareFirst Maryland Indemnity or PPO
- CIGNA PPO
- HealthyBlue PPO
- Network OA
- Johns Hopkins Advantage MD HMO
- Optima Family Care MCO - VA Medicaid MCO
Education
Fellowship: Brown University (2025)
Residency: Boston University Medical Center (2022)
Medical School: Drexel University College of Medicine (2019)