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Maaza Abdi, MD
Expertise: Gender Affirming Care, Gastroenterology
Primary Location: Johns Hopkins Health Care & Surgery Center - Green Spring Station, Lutherville, Lutherville, MD
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Elham Afghani, MD MPH
Expertise: Gastroenterology
Primary Location: Johns Hopkins Health Care & Surgery Center - Green Spring Station, Lutherville, Lutherville, MD
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Marshall Bedine, MD
Expertise: Gastroenterology
Primary Location: Johns Hopkins Health Care & Surgery Center - Green Spring Station, Lutherville, Lutherville, MD
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Victor Chen, MD PhD
Expertise: Gastroenterology, Addiction Medicine, Transplant Hepatology, Hepatology
Primary Location: Johns Hopkins Health Care & Surgery Center - Green Spring Station, Lutherville, Lutherville, MD
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Doan Dao, MD
- Director, Center of Excellence for Liver Disease in Viet Nam, Johns Hopkins University School of Medicine
Expertise: Gastroenterology
Primary Location: Johns Hopkins Outpatient Center, Baltimore, MD
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Michael G. Goggins, MD
Expertise: Gastroenterology
Primary Location: Johns Hopkins Health Care & Surgery Center - Green Spring Station, Lutherville, Lutherville, MD
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James Hamilton, MD
- Director of Hepatology
Expertise: Gastroenterology
Primary Location: Johns Hopkins Health Care & Surgery Center - Green Spring Station, Lutherville, Lutherville, MD
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Mouen Khashab, MD
- Director of Therapeutic Endoscopy
Expertise: Gastroenterology
Primary Location: Johns Hopkins Health Care & Surgery Center - Green Spring Station, Lutherville, Lutherville, MD
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Mark Lazarev, MD
Expertise: Gender Affirming Care, Gastroenterology
Primary Location: Johns Hopkins Health Care & Surgery Center - Green Spring Station, Lutherville, Lutherville, MD
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Joanna Miller Peloquin Melia, MD
Expertise: Gender Affirming Care, Gastroenterology
Primary Location: Johns Hopkins Health Care & Surgery Center - Green Spring Station, Lutherville, Lutherville, MD
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Stephen J. Meltzer, MD
Expertise: Gastroenterology
Primary Location: Johns Hopkins Health Care & Surgery Center - Green Spring Station, Lutherville, Lutherville, MD
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Alyssa Parian, MD
Expertise: Gastroenterology, Hospital Medicine
Primary Location: Johns Hopkins Health Care & Surgery Center - Green Spring Station, Lutherville, Lutherville, MD
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Vikesh Singh, MD MSC
- Director of Pancreatology
Expertise: Gastroenterology
Primary Location: Johns Hopkins Health Care & Surgery Center - Green Spring Station, Lutherville, Lutherville, MD
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Hazel Marie Galon Veloso, MD
Expertise: Gastroenterology
Primary Location: Johns Hopkins Health Care & Surgery Center - Green Spring Station, Lutherville, Lutherville, MD
Our expert clinicians at The Johns Hopkins Division of Gastroenterology and Hepatology at Green Spring Station offer a full range of gastroenterology and hepatology services including endoscopy and motility studies.
Request an Appointment
Schedule online through MyChart
Available for follow-up appointments with most providers
Log into MyChart
| Sign up for MyChart
![mobile desktop](/-/media/gastroenterology-hepatology/mobile.jpg?h=131&iar=0&w=227&hash=469C1351824A7FA655B625CF93B6F863)
Schedule by phone
New and existing patients can schedule by phone using these numbers:
For care in Maryland: 410-933-7495
For care in DC: 202-660-5555
International patients: +1-410-502-7683 or fill out a form
![phone icon](/-/media/gastroenterology-hepatology/phone.jpg?h=129&iar=0&w=195&hash=20F03B84C2CDEDD4452656E79EC19387)
Centers and Clinics at Green Spring Station
- General gastroenterology (heartburn, diarrhea, constipation, blood in the stool, screening colonoscopy)
- Hepatology, including pre-liver transplant evaluation
- Inflammatory bowel disease (Crohn’s disease and Ulcerative colitis)
- Pancreatitis Center
- Motility (gastroparesis, achalasia, chronic constipation)
- Acupuncture and Chinese Medicine
- Infusion Center
- Colon cancer screening
- High Resolution Anoscopy
Procedures at Green Spring Station
Learn about these procedures in our Health section.
- 24-Hour pH impedance test
- Anorectal manometry
- Esophageal manometry
- Capsule endoscopy
- Colonoscopy (screening and treatment)
- Endoscopic ultrasound (EUS) with fine needle aspiration
- Endoscopic retrograde cholangiopancreatography (ERCP)
- Endoscopic mucosal resection (EMR)
- Endoscopic submucosal dissection (ESD)
- High resolution anoscopy
- Motility studies
- Sigmoidoscopy
- Therapeutic endoscopy (biliary and pancreatic disorders, endoscopic management of large polyps)
- Upper Endoscopy or Esophagogastroduodenoscopy (EGD)
- Wireless esophageal pH test (Bravo test)
Our Team
Advanced Providers
Nicole deBettencourt, DNP, CRNP
Certified Registered Nurse Practitioner
![Nicole deBettencourt, DNP, CRNP](/-/media/gastroenterology-hepatology/nicole-de-bettencourt.jpg?h=400&iar=0&w=340&hash=1F8D4834D154F3751C6F044B36FC8B6E)
Jae O. Lee, MSN, CRNP
![Jae O. Lee, MSN, CRNP](/-/media/gastroenterology-hepatology/lee-jae2_150.jpg?h=210&iar=0&w=150&hash=D414863B67D4D3D84C0820CF0816488B)
Kate Lee-Young, DNP, MSN, CRNP
![Kate Lee-Young, DNP, MSN, CRNP](/-/media/gastroenterology-hepatology/lee-young-kate_640x895.jpg?h=895&iar=0&w=640&hash=B48538F74790C0DE49FE66F2C70BED91)
Ashley M. Salamone, MSN, CRNP
![Ashley Salamone](/-/media/gastroenterology-hepatology/salamone-ashley_150.jpg?h=210&iar=0&w=150&hash=7C181550EF5EE1C193086B239D71A326)
Blake Reddick, DNP, CRNP
General Gastroenterology Nurse Practitioner
![Reddick, Blake, DNP, CRNP](/-/media/gastroenterology-hepatology/blake-reddick.jpg?h=300&iar=0&w=240&hash=78F12966E011FA653B1F1768B42C7CC6)