Summary

Dr. Stephen Antonik is a gastroenterologist and internal medicine specialist who earned his medical degree from Loyola University of Chicago Stritch School of Medicine. With 24 years of experience treating digestive health conditions, he brings extensive knowledge to patient care. Dr. Antonik is fluent in both English and Spanish, allowing him to serve a diverse patient population.

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 expertise includes performing colonoscopies and other lower gastrointestinal procedures with sedation for patient comfort. Patients have given him an average rating of 3.9 out of 5 stars on Vitals.

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 board certifications
  • 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

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Dr. Stephen John Antonik, MD
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Dr. Stephen John Antonik, MDBilal Ali, MDPaolo Lino Peghini, MDJan Seiler, APRN
GastroenterologyGastroenterologyGastroenterologyGastroenterology
Accepts New Patients Accepts New Patients Accepts New Patients Accepts New Patients
3.9 
4.7 
4.3 
24 Years of Experience 21 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 Speaks Spanish, French, German, Italian, English Speaks English
LEESBURG , VAMcLean , VAMcLean , VAMontgomery , AL
Med School: Loyola University Of Chicago Stritch School Of Medicine Med School: King Edward Medical College Med School: Universitat Zurich Med School: Georgia State University
Current Profile
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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.

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Frequently Asked Questions

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.
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.
What languages does Dr. Stephen Antonik speak?
Dr. Stephen Antonik speaks English and Spanish.
Does Dr. Stephen Antonik accept my insurance?
You can see the insurance plans that Dr. Stephen Antonik accepts on their Vitals profile.
Where is Dr. Stephen Antonik's office located?
Dr. Stephen Antonik's office is located at 19500 SANDRIDGE WAY STE 470, LEESBURG, VA, 20176.

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