Summary

Dr. Stephen Antonik is a gastroenterologist with expertise in internal medicine who has been caring for patients for 24 years. He earned his medical degree from Loyola University of Chicago Stritch School of Medicine and focuses on digestive health conditions. Dr. Antonik is fluent in both English and Spanish, allowing him to serve diverse patient communities.

Dr. Antonik practices at multiple locations in Virginia, including affiliations with Inova Loudoun Hospital Center and Reston Hospital Center in Leesburg and Reston. He specializes in treating common digestive conditions such as colon polyps, hemorrhoids, and diverticular disease. His procedural expertise includes performing colonoscopies, upper GI endoscopies, and lower GI endoscopies to diagnose and treat gastrointestinal issues. Patients rate him 3.9 out of 5 stars on average.

Overview based on verified provider data

Quick Facts

  • accepting new patients
  • 3.9
  • 24 years of experience
  • speaks English, Spanish
  • Loyola University Of Chicago Stritch School Of Medicine
  • 5 written reviews
  • 2 specialties
  • 17 areas of expertise
  • 2 hospital affiliations
  • 4 office locations
  • Male

Patients’ Perspective

  • Gave an accurate diagnosis
  • Had a good bedside manner
  • Spent time with me

Office Locations

Dr. Stephen John Antonik has 4 locations

Gastroenterology Associates Pllc

19500 Sandridge Way Ste 470Leesburg, VA 20176
Mon9:00 am - 5:00 pm
Tue9:00 am - 5:00 pm
Wed9:00 am - 5:00 pm
Thu9:00 am - 5:00 pm
Fri9:00 am - 5:00 pm
SatClosed
SunClosed

Reston Hospital Center

1850 Town Center PkwyReston, VA 20190

Inova Loudoun Hospital Center

44045 Riverside PkwyLeesburg, VA 20176

Inova Loudon Ambulatory Surgery Center

44035 Riverside Pkwy Ste 200Leesburg, VA 20176
Mon6:00 am - 5:00 pm
Tue6:00 am - 5:00 pm
Wed6:00 am - 5:00 pm
Thu6:00 am - 5:00 pm
Fri6:00 am - 5:00 pm
SatClosed
SunClosed

Compare with Similar Doctors

Dr. Stephen John Antonik, MD
Shandiz Shahbazi, MD
Paolo Lino Peghini, MD
Jan Seiler, APRN
Dr. Stephen John Antonik, MDShandiz Shahbazi, MDPaolo Lino Peghini, MDJan Seiler, APRN
GastroenterologyGastroenterologyGastroenterologyGastroenterology
Accepts New Patients Accepts New Patients Accepts New Patients Accepts New Patients
3.9 
4.5 
4.5 
24 Years of Experience 8 Years of Experience 37 Years of Experience
No Virtual Visit Option No Virtual Visit Option No Virtual Visit Option Virtual Visit Available
Speaks English, Spanish Speaks English, Farsi Speaks English, French, German, Italian, Spanish Speaks English
Leesburg , VAMcLean , VAMcLean , VAMontgomery , AL
Med School: Loyola University Of Chicago Stritch School Of Medicine Med School: Virginia Commonwealth University Med School: Universitat Zurich Med School: Georgia State University
Current Profile
View Profile View Profile View Profile

Insurance Plans Accepted by Dr. Stephen John Antonik

  • Accepts Medicare

Medical Specialties

Dr. Stephen John Antonik has the following 2 specialties

Specialty Expertise

Dr. Stephen John Antonik has the following 17 areas of expertise

  • Abdominal Pain
  • Acid Reflux Disease (Gastroesophageal Reflux / GERD)
  • Acid Reflux Disease (GERD)
  • Celiac Disease
  • Colonoscopy
  • Constipation
  • Endoscopic Retrograde Cholangiopancreatography (ERCP)
  • Esophagoscopy
  • Gastrointestinal Diseases (GI Diseases)
  • Gastroscopy
  • Hemorrhoids
  • Hepatitis C
  • Internal Medicine
  • Irritable Bowel Syndrome (IBS)
  • Nutritional Support
  • Sigmoidoscopy
  • Ulcerative Colitis

Certifications, License, & Education

24 Years Experience

Dr. Stephen John Antonik holds an expired medical license in the state of Virginia.

Medical License

Medical Doctor with an expired medical license in the state of Virginia that expired in 2026.

Education & Training

Medical School

Graduated from Loyola University Of Chicago Stritch School Of Medicine in 2002.

NPI Number

Dr. Antonik's NPI number is 1770567257.

Similar doctors

Frequently Asked Questions

Is Dr. Stephen Antonik accepting new patients?
Dr. Stephen Antonik is accepting new patients on Vitals. View Dr. Stephen Antonik's profile on Vitals to make an appointment.
Where is Dr. Stephen Antonik's office located?
Dr. Stephen Antonik's office is located at 19500 Sandridge Way Ste 470, Leesburg, VA, 20176.
Which hospitals is Dr. Stephen Antonik affiliated with?
Dr. Stephen Antonik is affiliated with Inova Loudoun Hospital Center and Reston Hospital Center.
Does Dr. Stephen Antonik accept virtual/telehealth appointments?
Dr. Stephen Antonik has not indicated that they accept virtual/teleheatlh appointments. Contact their office through their Vitals profile to check for availability.
What languages does Dr. Stephen Antonik speak?
Dr. Stephen Antonik speaks English and Spanish.

Ensuring Data Transparency and Trust: A Guide to Vitals Doctor Listings and Reviews

Our provider data is gathered directly from physicians and publicly available databases. Providers who verify their profiles gain the ability to update information, offering additional details about their specialties,education, treated conditions, performed procedures, and accepted insurances.

Reviews on Vitals are submitted by users only. Recognizing the valuable insights these reviews offer into a doctor's reputation, we maintain internal policies and protocols to ensure the quality and accuracy of all reviews. Importantly, providers cannot delete or alter reviews independently. Reviews can only be deleted or changed following an internal assessment by our customer service team.

Your feedback is highly valued and we encourage you to contact our support team should you encounter any issues.