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Your Trusted Gastroenterology Partner in Maryland
Gastro Center of Maryland is one of the largest gastroenterology (GI) group practices in Maryland, providing expert, compassionate care for digestive and liver conditions. With multiple locations across the state, including Annapolis, Columbia, Bethesda, and Olney, our board-certified providers use advanced technology to create personalized treatment plans tailored to individual needs. Our state-of-the-art Ambulatory Surgery Centers offer procedures like Bravo pH testing, PillCam capsule endoscopy, and STRETTA for reflux, alongside onsite pathology and an IBD Infusion Center.

We prioritize patient convenience with same-week and NextDay GI appointments, ensuring timely access to care. Our team is dedicated to delivering high-quality, patient-centered services that address both chronic conditions and preventive screenings, fostering long-term digestive health.
Services
Colonoscopy Endoscopy Hepatology IBD Infusion Capsule Endoscopy
Highlights and features
  • We provide personalized treatment plans using advanced diagnostic technology.
  • Our board-certified specialists offer expertise in complex GI and liver conditions.
  • Next-day appointments ensure timely access to urgent gastrointestinal care.
  • State-of-the-art surgery centers with onsite pathology for faster results.
  • Multi-location network serving communities across Maryland with convenience.
What people say
Board-certified specialists Personalized treatment plans Timely appointments Compassionate staff Advanced technology
Services
Colonoscopy
Colonoscopies detect colorectal cancer and polyps using advanced imaging technology. Our board-certified specialists perform thorough examinations to ensure early diagnosis and treatment. Patients receive personalized preparation instructions and post-procedure care guidance for optimal outcomes.
Endoscopy
Upper endoscopies evaluate digestive tract abnormalities with minimally invasive techniques. We use high-resolution cameras to diagnose conditions like GERD and ulcers while prioritizing patient comfort through sedation protocols and rapid recovery processes.
Hepatology
Our hepatology services address viral hepatitis, fatty liver disease, and autoimmune disorders through comprehensive management plans. Treatment combines medication, lifestyle modifications, and regular monitoring to preserve liver function and prevent complications.
IBD Infusion
Specialized infusion treatments for inflammatory bowel diseases like Crohn's and ulcerative colitis are administered in our dedicated IBD Infusion Center. Certified nurses monitor patients during biologic therapy sessions to ensure safety and efficacy.
Capsule Endoscopy
PillCam capsule endoscopy visualizes the small intestine non-invasively. Patients swallow a vitamin-sized camera that captures images transmitted to a wearable recorder, enabling diagnosis of obscure gastrointestinal bleeding and other conditions.
People
Rudy Rai
Gastroenterologist & Hepatologist
Dr. Rudy Rai specializes in digestive and liver disorders with expertise in advanced endoscopic procedures. He prioritizes patient education and evidence-based treatments to improve quality of life.
Pia Prakash
Gastroenterologist & Hepatologist
Dr. Pia Prakash provides comprehensive care for gastrointestinal conditions, emphasizing personalized treatment plans. Her approach combines technical skill with compassionate communication to address patient concerns thoroughly.
Josh Rosenbloom
Gastroenterologist & Hepatologist
Dr. Josh Rosenbloom focuses on complex GI cases, offering expertise in colon cancer screenings and motility disorders. Patients appreciate his attentive listening and clear explanations of treatment options.
Eduardo Castillo
Gastroenterologist & Hepatologist
Dr. Eduardo Castillo treats chronic digestive diseases with a patient-centered approach. His practice emphasizes building trust through consistent follow-up and tailored management strategies for long-term wellness.
Dabo Xu
Gastroenterologist & Hepatologist
Dr. Dabo Xu specializes in therapeutic endoscopy and liver disease management. He combines technical precision with empathetic care to deliver effective solutions for complex gastrointestinal conditions.
Questions
What GI conditions do you treat?
We treat acid reflux, IBS, Crohn's disease, ulcerative colitis, liver disorders, and perform colon cancer screenings using evidence-based approaches.
Do you offer urgent GI appointments?
Yes, our NextDay GI service provides prompt evaluations for urgent gastrointestinal concerns when available.
Are your doctors board-certified?
All gastroenterologists and hepatologists maintain board certification in their specialties.
What insurance plans are accepted?
We participate in most major insurance networks including CareFirst, Blue Cross Blue Shield, and Medicare.
How do I prepare for a colonoscopy?
Detailed preparation instructions including dietary restrictions and bowel cleansing protocols will be provided before your procedure.
What sets your practice apart?
Our combination of advanced technology, multi-location access, and patient-centered care distinguishes our comprehensive GI services.
Reviews (6)
Komyn
Jun 10, 2022 Report
I'd give a full 5 stars, but unfortunately we've had a lot of problems with both the Columbia and Olney offices lately. Karen at the Annapolis office is our hero. We've had to navigate multiple scheduling issues, referral problems, and more, and she's always there to fix things when they go wrong.
Samson Nwosu
Jun 04, 2022 Report
Its a very good medical outfit. Very professional and competent. I am Still waiting for a cancellation for an earlier appointment date, but I would recommend them to anyone who is considering GCM.
Delaney D.
Mar 29, 2022 Report
Dr. Rosenbloom at Gastro Center has been a literal life saver. He goes out of his way to make sure I feel seen, heard and cared for. My first GI dismissed all of my symptoms and put me on unnecessary meds, whereas Dr. Rosenbloom has taken the time to diagnose me properly and determine a long term care plan.
Jennifer Liu
Mar 09, 2022 Report
Dr. Rai and his care team are excellent. They are thorough, not quick to dismiss problems. They actually helped identify a condition that I have had since childhood but no other doctors were thorough enough to chase it down. You are in good hands with Dr. Rai!
Dj Klee
Mar 07, 2022 Report
The biggest problems here are that: 1. The online patient portal has NOTHING. Literally no test results or history of present illness or visit summaries are uploaded. The website is only there to ask for refills of prescriptions. 2. Related to the first point, if you miss their calls, you will forever play phone tag to get your results over the phone or get answers to your questions from the prescriber. This practice is WAY too busy for it's own good. Profit > Care.
Jackie R.
Feb 22, 2022 Report
To start, I was very delighted when Dr. Prakash apologize for being late. Doctors don't do that in my experience. She listened to all my concerns and provided me her treatment plans. I was very happy to speak with Dr. Prakash because she provided more answers to my problems than my primary care doctor. I look forward to working with her on my treatment plans.