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296 providers

Availability last updated 09/06/2026

Dr. Richard Eisenman, MD
4.66
(9)
Dr. Richard Eisenman, MD Gastroenterologist
4.66 (9)
5065 State Road 7
Suite 201
Lake Worth, FL 33449
About Dr. Richard Eisenman, MD

Richard Eisenman, MD, is a highly respected gastroenterologist working with patients at Eisenman & Eisenman, M.D., Advanced Gastro Consultants in Lake Worth, Florida. He maintains a specialized interest in advanced endoscopic procedures.

Dr. Eisenman graduated magna cum laude with a Bachelor of Science in Biology from the University of Delaware in Newark, where he played on the college soccer team. After graduation, he immediately began medical school at Thomas Jefferson University’s Sidney Kimmel Medical College in Philadelphia, earning his medical degree in 1987.

Dr. Eisenman began his postgraduate training with an internship and residency at the University of Michigan in Ann Arbor, during which time he actively pursued endoscopic research of pneumatic dilation in achalasia. 

He went on to pursue a fellowship at Northwestern University in Chicago in 1990, focusing on gastroenterology, advanced endoscopic techniques, and biliary techniques. There, he completed case reports and investigational studies in biliary ascariasis, porcine bile stability, biliary manometry, and an in-vitro biliary stent occlusion model.

After finishing his fellowship in 1993, Dr. Richard Eisenman headed to Florida to join his brother, Dr. Jesse Eisenman, in private practice. Together, they established Eisenman & Eisenman M.D.

Dr. Eisenman is an avid dog lover. When he is not caring for patients, he enjoys traveling, mountain hiking, reading, appreciating fine wine, listening to classical music, and practicing yoga.

Practice
Eisenman & Eisenman, M.D., Advanced Gastro Consultants
Latest Review
“Fast check in, called into back almost immediately and Dr Rene came in soon after that. Nurses pleasant and of course so is Dr Rene...always ”
Dr. Richard Eisenman, MD

Dr. Richard Eisenman, MD

Gastroenterologist

5065 State Road 7
Suite 201
Lake Worth, FL 33449

4.66 (9)
Dr. Carl Atallah, DO
5.0
(6)
Dr. Carl Atallah, DO Gastroenterologist
5.0 (6)
2845 North Sheridan Road
Suite 801
Chicago, IL 60657
+1 more location
About Dr. Carl Atallah, DO

About Dr. Atallah

Carl Atallah, DO, is a board-certified internist and gastroenterologist at Advanced GI LLC. He is dedicated to serving patients in the Lake View/Lincoln Park area of Chicago, Illinois as well as patients who hail from various other neighborhoods throughout the Chicagoland area.

After graduating from Penn State University, Dr. Atallah earned his Doctor of Osteopathic Medicine at Nova Southeastern University in Fort Lauderdale. He completed his internship and residency in internal medicine at the University of Medicine and Dentistry of New Jersey. He then completed his fellowship training in gastroenterology at Midwestern University in Chicago.

During his fellowship, Dr. Atallah was a clinical assistant professor at Midwestern University and enjoyed his time teaching medical students and residents. 

Dr. Atallah treats patients holistically and with respect. He strives to offer patients advanced treatment options while keeping in mind the best comprehensive care for each individual. Dr. Atallah is currently a member of the American Gastroenterological Association, American Society for Gastrointestinal Endoscopy, and American Osteopathic Association.

Dr. Atallah is currently a faculty member at the Rosalind Franklin University of Medicine and Science as Clinical Assistant Professor in the Department of Medicine.

In his free time, Dr. Atallah enjoys traveling, exercising, and spending time with family and friends.

Practice
Advanced GI LLC
Latest Review
“Doctor very professional and friendly. Explained everything. ”
Dr. Carl Atallah, DO

Dr. Carl Atallah, DO

Gastroenterologist

2845 North Sheridan Road
Suite 801
Chicago, IL 60657

5.0 (6)
Dr. Anthony Ng, MD
4.5
(4)
Dr. Anthony Ng, MD Gastroenterologist
4.5 (4)
139 Centre Street
Suite 611
New York, NY 10013
+1 more location
About Dr. Anthony Ng, MD

Dr. Anthony Ng, M.D., is a leading gastroenterologist dedicated to providing state-of-the-art care to patients from Brooklyn, New York to Lower Manhattan, New York, and throughout the Greater New York City metro region. As the founding physician of GI Health, Dr. Ng offers a comprehensive array of diagnostic and treatment options for patients with issues affecting the gastrointestinal system, including chronic and acute stomach pain, colon cancer, hemorrhoids, and acid reflux, using the most advanced techniques for colonoscopy, upper endoscopy and wireless capsule endoscopy using the PillCam system. Dr. Ng also provides non-invasive screening for colorectal cancer with stool testing including the ground-breaking Cologuard fecal DNA test. In addition, he offers medical weight loss programs customized for the needs of the individual patient for optimal long-term results.

After receiving his medical degree, Dr. Ng completed his training in internal medicine at The Beth Israel Deaconess Hospital in Boston, one of the three major Harvard teaching hospitals, followed by a residency in gastroenterology at The Mount Sinai Hospital in New York City. In addition to caring for patients at his practice, Dr. Ng is also a clinical instructor of medicine at both New York Presbyterian Hospital - Weill Cornell Medical Center and Mount Sinai - Beth Israel Hospital, both top-ranked medical centers in New York City.

At GI Health, Dr. Ng welcomes the opportunity to provide skilled, compassionate, patient-centered care for men and women from throughout New York City.

Practice
GI Health
Latest Review
“Great service”
Dr. Anthony Ng, MD

Dr. Anthony Ng, MD

Gastroenterologist

139 Centre Street
Suite 611
New York, NY 10013

4.5 (4)
Dr. Michael Flicker, MD
5.0
(2)
Dr. Michael Flicker, MD Gastroenterologist
5.0 (2)
2845 North Sheridan Road
Suite 801
Chicago, IL 60657
+1 more location
About Dr. Michael Flicker, MD

About Dr. Flicker

Michael Flicker, MD, is an experienced gastroenterologist at Advanced GI LLC, serving patients in the Lake View/Lincoln Park area of Chicago, Illinois as well as patients who hail from various other neighborhoods throughout the Chicagoland area. He proudly provides comprehensive gastroenterology care using advanced procedures and a holistic approach.

Dr. Flicker attended the University of Pennsylvania, where he completed his undergraduate degree and graduated magna cum laude. In 2004, he went on to graduate from the University of Chicago, receiving his medical degree from the Pritzker School of Medicine. He then completed his internal medicine residency at the University of Chicago Hospital before continuing his education with a gastroenterology fellowship at Harvard’s Brigham and Women’s Hospital in Boston.

Returning to his roots, Dr. Flicker returned to Chicago for an advanced interventional endoscopy fellowship at Northwestern Memorial Hospital. After serving as a faculty member of Northwestern from 2011-2012, he moved on to work in private practice. 

Dr. Flicker is currently the Section Chief of Gastroenterology at Advocate Illinois Masonic Medical Center.

Dr. Flicker is currently a member of the American Gastroenterological Association and the American Society for Gastrointestinal Endoscopy.

Dr. Flicker is currently a faculty member at the Rosalind Franklin University of Medicine and Science as Clinical Assistant Professor in the Department of Medicine.

Practice
Advanced GI LLC
Latest Review
“i want to thank you Dr. Flicker and stuff for their great support, may God bless you all!”
Dr. Michael Flicker, MD

Dr. Michael Flicker, MD

Gastroenterologist

2845 North Sheridan Road
Suite 801
Chicago, IL 60657

5.0 (2)
Healthcare specialist
5.0
(1)
Dr. Lourdes Bahamonde, DO Gastroenterologist
5.0 (1)
950 South Arroyo Parkway
2nd Floor
Pasadena, CA 91105
+2 more locations
About Dr. Lourdes Bahamonde, DO

Lourdes González Bahamonde, DO, is a board certified physician in internal medicine; ACGME-fellowship trained in gastroenterology and ASBH-certified healthcare ethics consultant. She provides comprehensive medical care at Center For Digestive Healing in the San Gabriel Valley and Los Angeles California. She earned a bachelor's degree in psychobiology at UCLA, and a master's in bio-physiology at CSULA before earning her medical degree at New York College of Osteopathic Medicine, NYIT on Long Island. She completed her ACGME training in internal medicine, gastroenterology, hepatology, and nutrition in NY at North Shore University Hospital and Long Island Jewish Medical Center, now Northwell Health, in 2013 and established Center For Digestive Healing in 2018 as an sCorp.

In 2020, the Center for Digestive Healing opened its doors, offering patients access to personalized care in gastroenterology and nutrition with access to advanced diagnostic and therapeutic technologies through hospital privileges at Huntington Hospital in Pasadena, CA. She delivers comprehensive digestive care through a hybrid practice model—meeting patients where they are through telemedicine while ensuring seamless access to in-person consultations, diagnostic testing, endoscopy, and therapeutic procedures when indicated. While Dr. Bahamonde specializes in digestive disorders, her practice has evolved toward integrative, preventive, patient-centered care that combines learned principles in internal medicine, GI, nutrition, with osteopathic manipulative medicine principles in practice.

Since relocating from NY, she has performed over 12,000 endoscopies, including gastric and colorectal cancer screenings with polypectomies, endoscopic mucosal resections, as well as routine screenings for chronic liver disease. Dr. Bahamonde emphasizes peer-reviewed understanding of the interrelationship of body, structure, and function, allowing her special insight into treating gut-brain disorders. She has dedicated her life to serving diverse communities through education and cultural competence, recognizing the importance of open communication in shared-decision making.

Dr. Bahamonde continues to inspire future health care leaders in education. She serves physicians, residents and fellows as medical ethics faculty scholar; as well as medical director and assistant professor of clinical anatomy and gastroenterology for Touro University California, Los Angeles' new Master's of Pysician Assistant Studies. She is dedicated to translational science efforts for prehealth professional students and youth in STEM programs.

Practice
Center For Digestive Healing
Latest Review
“very good”

Dr. Lourdes Bahamonde, DO

Gastroenterologist

950 South Arroyo Parkway
2nd Floor
Pasadena, CA 91105

5.0 (1)
Raymond Mis
Raymond Mis Gastroenterologist
8550 NE 138th Lane
Building 100
The Villages, FL 32159
+1 more location
About Raymond Mis

Meet Dr. Raymond J. Mis

Dr. Raymond J. Mis, DO, FACOI, is a Gastroenterologist with more than three decades of clinical experience specializing in digestive health, colon cancer screening, and complex gastrointestinal conditions. A native of Brooklyn, New York, he earned his Doctor of Osteopathy from the New England College of Osteopathic Medicine and completed extensive training, including an internal medicine residency at Norwalk Hospital, an internship at St. Michael's Medical Center, and a gastroenterology fellowship at the Genesys Regional Medical Center Flint Osteopathic Campus. Throughout his distinguished career, Dr. Mis has held numerous leadership roles, including Chief of Gastroenterology and Director of the Colon Cancer Screening Initiative at Kent County Hospital. In addition to his clinical work, he serves as an Associate Clinical Professor of Medicine and has delivered keynote lectures across academic, medical, and corporate settings.

Practice
Gastroenterology and Nutrition of Central Florida
Raymond Mis

Raymond Mis

Gastroenterologist

8550 NE 138th Lane
Building 100
The Villages, FL 32159

Dr. Patrick Volak, M D
Dr. Patrick Volak, M D Gastroenterologist
4200 E Skelly Drive
Suite 100 & Suite 700
Tulsa, OK 74135
About Dr. Patrick Volak, M D

Adult Gastroenterology Associates

 

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Tulsa Endoscopy Center

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Practice
Adult Gastroenterology Associates & Tulsa Endoscopy Center
Dr. Patrick Volak, M D

Dr. Patrick Volak, M D

Gastroenterologist

4200 E Skelly Drive
Suite 100 & Suite 700
Tulsa, OK 74135

Dr. Matt Blankenship, MD
Dr. Matt Blankenship, MD Gastroenterologist
4200 E Skelly Drive
Suite 100 & Suite 700
Tulsa, OK 74135
About Dr. Matt Blankenship, MD

Adult Gastroenterology Associates

 

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Tulsa Endoscopy Center

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Practice
Adult Gastroenterology Associates & Tulsa Endoscopy Center
Dr. Matt Blankenship, MD

Dr. Matt Blankenship, MD

Gastroenterologist

4200 E Skelly Drive
Suite 100 & Suite 700
Tulsa, OK 74135

Dr. Jeffery Blonsky, MD
Dr. Jeffery Blonsky, MD Gastroenterologist
4200 E Skelly Drive
Suite 100 & Suite 700
Tulsa, OK 74135
About Dr. Jeffery Blonsky, MD

Adult Gastroenterology Associates

 

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Tulsa Endoscopy Center

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Practice
Adult Gastroenterology Associates & Tulsa Endoscopy Center
Dr. Jeffery Blonsky, MD

Dr. Jeffery Blonsky, MD

Gastroenterologist

4200 E Skelly Drive
Suite 100 & Suite 700
Tulsa, OK 74135

Dr. Markham Nightengale, M D
Dr. Markham Nightengale, M D Gastroenterologist
4200 E Skelly Drive
Suite 100 & Suite 700
Tulsa, OK 74135
About Dr. Markham Nightengale, M D

Adult Gastroenterology Associates

 

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Tulsa Endoscopy Center

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Practice
Adult Gastroenterology Associates & Tulsa Endoscopy Center
Dr. Markham Nightengale, M D

Dr. Markham Nightengale, M D

Gastroenterologist

4200 E Skelly Drive
Suite 100 & Suite 700
Tulsa, OK 74135

Dr. Douglas Kliewer, M D
Dr. Douglas Kliewer, M D Gastroenterologist
4200 E Skelly Drive
Suite 100 & Suite 700
Tulsa, OK 74135
About Dr. Douglas Kliewer, M D

Adult Gastroenterology Associates

 

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Tulsa Endoscopy Center

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Practice
Adult Gastroenterology Associates & Tulsa Endoscopy Center
Dr. Douglas Kliewer, M D

Dr. Douglas Kliewer, M D

Gastroenterologist

4200 E Skelly Drive
Suite 100 & Suite 700
Tulsa, OK 74135

Dr. Brandon Conkling, DO
Dr. Brandon Conkling, DO Gastroenterologist
4200 E Skelly Drive
Suite 100 & Suite 700
Tulsa, OK 74135
About Dr. Brandon Conkling, DO

Adult Gastroenterology Associates

 

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Tulsa Endoscopy Center

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Practice
Adult Gastroenterology Associates & Tulsa Endoscopy Center
Dr. Brandon Conkling, DO

Dr. Brandon Conkling, DO

Gastroenterologist

4200 E Skelly Drive
Suite 100 & Suite 700
Tulsa, OK 74135

Healthcare specialist
Dr. Konstantin Vaizman, MD Gastroenterologist
5321 Flatlands Ave
Brooklyn, NY 11234

Dr. Konstantin Vaizman, MD

Gastroenterologist

5321 Flatlands Ave
Brooklyn, NY 11234

Dr. Noel Fajardo
Dr. Noel Fajardo Gastroenterologist
3901 S Maryland Pkwy
Las Vegas, NV 89119
+1 more location
About Dr. Noel Fajardo

Noel R. Fajardo, MD, is a skilled gastroenterologist practicing at Las Vegas Gastroenterology, which has three locations throughout Las Vegas and Henderson, Nevada. His mission is to provide compassionate and comprehensive care to individuals living throughout the Las Vegas Valley area.

Dr. Fajardo is a graduate of the University of the Philippines College of Medicine. He finished his residency and chief residency at Mount Sinai School of Medicine in New York City. After his residency, Dr. Fajardo specialized in gastroenterology and hepatology at the Mayo Clinic College of Medicine in Rochester, Minnesota, where he also earned an advanced fellowship degree in gastrointestinal motility. He is a former clinical instructor at the Mayo Clinic College of Medicine and is board certified in internal medicine and gastroenterology by the American Board of Internal Medicine (ABIM). 

Dr. Fajardo’s research interests have included disorders of the bowel associated with spinal cord injury and experimental treatments for other neuropathic gastrointestinal disorders. The results of his research have been presented at national and international meetings.

Dr. Fajardo has been a strong advocate for diagnosing and treating Hepatitis B in the Asian community nationwide through awareness campaigns and national and international media. He has been a promoter and organizer of large regional screenings and benefit events. Dr. Fajardo has also been an advocate for colon cancer screening, promoting the prevention, as well as the early detection of colon cancer within the Las Vegas Valley community.

To better serve more diverse patient populations, Dr. Fajardo is also fluent in Tagalog and Spanish.

Practice
Las Vegas Gastroenterology
Dr. Noel Fajardo

Dr. Noel Fajardo

Gastroenterologist

3901 S Maryland Pkwy
Las Vegas, NV 89119

Dr. Filippo Cremonini
Dr. Filippo Cremonini Gastroenterologist
3901 S Maryland Pkwy
Las Vegas, NV 89119
+1 more location
About Dr. Filippo Cremonini

Filippo Cremonini, MD, PhD, MSc is a graduate of the Catholic University of Rome, Italy, where he also completed residency in Internal Medicine. He finished residency at Mayo Clinic College of Medicine in Rochester, Minnesota, where he obtained a Masters’ degree in Clinical Research, and earned a PhD in Gastrointestinal Physiology. After residency, Dr. Cremonini specialized in Gastroenterology and Hepatology at BIDMC-Harvard Medical School in Boston, Massachusetts. He has held titles of Assistant Professor of Medicine at BIDMC-Harvard Medical School, Assistant Professor of Medicine at the Mayo Clinic College of Medicine, in Rochester, Minnesota, Visiting Professor at U.C.L.A., and holds a title of full Professor of Gastroenterology with the Italian Ministry of University (MIUR). Dr. Cremonini is board certified in internal medicine and gastroenterology by the American Board of Internal Medicine (ABIM).

Dr. Cremonini has authored more than 150 publications in the field of gastroenterology. He is a regular invited speaker and lecturer at the main meetings in the fields of Gastroenterology and Internal Medicine. He has received numerous awards for his research and activities in Europe and in the US. Dr. Cremonini is also fluent in Italian and Spanish.

Practice
Las Vegas Gastroenterology
Dr. Filippo Cremonini

Dr. Filippo Cremonini

Gastroenterologist

3901 S Maryland Pkwy
Las Vegas, NV 89119

Dr. Alexander Mamunes
Dr. Alexander Mamunes Gastroenterologist
1419 Forest Drive
Suite 105
Annapolis, MD 21403
+3 more locations
About Dr. Alexander Mamunes

Dr. Mamunes, MD, is one of the skilled gastroenterologists practicing at Gastro Center of Maryland, which has locations in Columbia, Annapolis, Olney, Riverdale, and Lutherville, Maryland. 

Dr. Mamunes grew up in Maryland, attending the University of Maryland, College Park and subsequently completing his medical degree at the University of Maryland School of Medicine. There he graduated summa cum laude and was elected to the Alpha Omega Alpha medical honor society. He then completed his residency in Internal Medicine and fellowship in Gastroenterology and Hepatology at Vanderbilt University Medical Center. During this time, he contributed to multiple research papers published in peer-reviewed medical journals, spanning topics from endoscopic practices to inflammatory bowel disease. He is currently a member of the American Gastroenterological Association (AGA) and American College of Gastroenterology (ACG).

Dr. Mamunes treats a wide range of gastrointestinal and liver disorders including inflammatory bowel disease (IBD), irritable bowel syndrome (IBS), constipation, acid reflux, fatty liver disease, colon cancer screening, celiac disease, and eosinophilic esophagitis. He is skilled in endoscopy (EGD), colonoscopy, and video capsule endoscopy.

In his free time, Dr. Mamunes enjoys hiking, music, and spending time with his wife and dog

Practice
Gastro Center of Maryland
Dr. Alexander Mamunes

Dr. Alexander Mamunes

Gastroenterologist

1419 Forest Drive
Suite 105
Annapolis, MD 21403

Monica Passi, MD
Monica Passi, MD Gastroenterologist
6502 Kenilworth Ave
Suite 100
Riverdale, MD 20737
+5 more locations
About Monica Passi, MD

Dr. Monica Passi, MD is a double board-certified physician specializing in Gastroenterology/Hepatology and Internal Medicine. She is currently accepting new patients.

As an advanced endoscopist, Dr. Passi has particular expertise in pancreatobiliary disorders and the endoscopic diagnosis and treatment of gastrointestinal cancers.  Her clinical interests include early detection and management of a wide range of GI and liver conditions, such as acid reflux, inflammatory bowel disease (IBD), irritable bowel syndrome (IBS), eosinophilic esophagitis, gastritis, and celiac disease, colon cancer screening and GI malignancies. Along with routine endoscopic procedures, Dr. Passi is skilled in performing the complex and technically demanding procedures of advanced endoscopy.

Dr. Passi is committed to delivering care that places the patient at the center of every decision and believes in shared decision making. She takes a holistic view of each person, developing personalized treatment strategies that reflect their individual needs and values. By fostering open dialogue and building trust, she works to establish meaningful relationships with her patients—ones rooted in compassion and mutual respect. Her mission is to provide the education and support patients need to make informed, confident choices about their health.

A native of the D.C. metropolitan area, Dr. Passi earned her medical degree from The George Washington University in Washington, D.C. She completed her residency in Internal Medicine at Northwell Health in Queens, NY. She then pursued a fellowship in Gastroenterology and Hepatology at the University of Maryland and the prestigious National Institutes of Health (NIH) in Bethesda, MD. To further specialize in advanced therapeutic endoscopy and pancreatobiliary disease, she completed a dedicated fellowship in advanced endoscopy at Northwell Health.

In addition to her clinical practice, Dr. Passi is passionate about contributing to the advancement of medical knowledge. She has presented her research at national and international conferences and authored numerous publications in respected, peer-reviewed journals.

Outside of medicine, Dr. Passi enjoys playing tennis, traveling, and spending time with her husband and children.

Dr. Passi provides expert, personalized care for a wide range of gastrointestinal conditions, combining clinical excellence with a compassionate approach. Whether you're managing a chronic condition or seeking answers to new symptoms, Dr. Passi is here to guide you every step on your path to better health.

Practice
Gastro Center of Maryland
Monica Passi, MD

Monica Passi, MD

Gastroenterologist

6502 Kenilworth Ave
Suite 100
Riverdale, MD 20737

Dr. Farzin Rashti, MD
Dr. Farzin Rashti, MD Gastroenterologist
7120 Minstrel Way
Suite #100 & 211
Columbia, MD 21045
+2 more locations
About Dr. Farzin Rashti, MD

Farzin Rashti, MD, FACP, is Board Certified in Gastroenterology & Hepatology and Internal Medicine and is dedicated to offering his patients superior personalized care in a respectful and supportive environment. He sees his patients at Gastro Center of Maryland’s office in Riverdale, Maryland.

Dr. Rashti works toward developing a partnership with his patients and forms a unique connection, which allows for a more individualized and targeted treatment plan.

Dr. Rashti received his medical degree from the Howard University College of Medicine. He completed an internship year at the Los Angeles County University of Southern California Medical Center and completed his Internal Medicine residency and Gastroenterology and Hepatology Fellowship at Medstar Georgetown University Hospital/Washington Hospital Center in Washington, DC.

Dr. Rashti has authored numerous scholarly articles and book chapters and has presented his research at national gastroenterology medical conferences. He has helped design and establish protocols for Fecal Microbiota Transplantation for the treatment of recurrent Clostridium Difficile infections. He is a Fellow of the American College of Physicians and is a member of the American Medical Association, American Gastroenterological Association, and American College of Gastroenterology.

He treats patients with a wide variety of gastrointestinal disorders including Crohn’s Disease and Ulcerative Colitis (Inflammatory Bowel Disease), acid reflux and GERD, Irritable Bowel Syndrome, constipation, liver disease, biliopancreatic disorders, Celiac Disease, and Clostridium Difficile infections, in addition to many other ailments. Dr. Rashti specializes in performing advanced endoscopic procedures including Endoscopic Retrograde CholangioPancreatography (ERCP), Single Balloon Enteroscopy, Transoral Incisionless Fundoplication (TIF), Overstitch (endoscopic suturing), and the removal of advanced lesions.

Practice
Gastro Center of Maryland
Dr. Farzin Rashti, MD

Dr. Farzin Rashti, MD

Gastroenterologist

7120 Minstrel Way
Suite #100 & 211
Columbia, MD 21045