Overview
Nir Bar is a Gastroenterologist practicing medicine in Boston, Massachusetts.
Dr. Bar is highly rated in 4 conditions, according to our data. His clinical expertise encompasses Achalasia, Cyclic Vomiting Syndrome, Barrett Esophagus, Gastroesophageal Reflux Disease (GERD), and Endoscopy.
He is actively involved in clinical research, co-authoring 35 peer reviewed articles. Dr. Bar is currently accepting new patients.
Specialties
Licenses
Hospital Affiliations
Languages Spoken
Gender
Insurance
Accepted insurance can change. Please verify directly with the provider.
Accepted insurance plans:
- EPO
- HMO
- POS
- PPO
- EPO
- HMO
- POS
- PPO
- EPO
- HMO
- POS
- PPO
- HMO
- MANAGED MEDICAID PLAN
- MEDICARE MAPD
- MEDICARE SNP
- EPO
- HMO
- PPO
- MANAGED MEDICAID PLAN
- MEDICARE MAPD
- MEDICARE PDP
- MEDICARE SNP
- MEDICARE-MEDICAID PLAN
- HMO
- INSURANCE PLAN
- MANAGED MEDICAID PLAN
- MEDICARE MAPD
- MEDICARE PDP
- MEDICARE SNP
- OTHER COMMERCIAL
- OTHER MEDICARE
- OTHER MEDICARE PART D
- PPO
- EPO
- HMO
- PPO
- EPO
- POS
- HMO
- INDEMNITY
- POS
- PPO
- EPO
- POS
- PPO
- OTHER MANAGED MEDICAID
- MEDICARE MAPD
- OTHER MEDICARE
- HMO
- INSURANCE PLAN
- MANAGED MEDICAID PLAN
- PPO
- OTHER MEDICAID
- STATE MEDICAID
- INSURANCE PLAN
- MEDICARE MAPD
- OTHER COMMERCIAL
- PPO
- HMO
- EPO
- HMO
- POS
- PPO
- EPO
- HMO
- INSURANCE PLAN
- MANAGED MEDICAID PLAN
- MEDICARE MAPD
- MEDICARE PDP
- MEDICARE SNP
- MEDICARE-MEDICAID PLAN
- OTHER MEDICARE
- OTHER MEDICARE PART D
Locations
55 Fruit Street, Boston, MA 02114
Clinical Research
Clinical research consists of overseeing clinical studies of patients undergoing new treatments and therapies, and publishing articles in peer reviewed medical journals. Providers who actively participate in clinical research are generally at the forefront of the fields and aware of the most up-to-date advances in treatments for their patients.
Brigham And Women's Crohn's And Colitis Center
Dr. Christopher C. Thompson is the Director of Endoscopy at Brigham and Women’s Hospital (BWH), Co-director of the Center for Weight Management and Wellness, and Professor of Medicine at Harvard Medical School. He is also the Advanced Endoscopy Fellowship Program Director and clinical faculty at Boston Children’s Hospital and the Dana-Farber Cancer Institute. Dr. Thompson’s clinical interests include endoscopic surgery applied to foregut conditions, with a focus on endoscopic treatment of obesity, GERD, Zenker’s diverticula, achalasia, gastroparesis, postsurgical complications, and pancreatobiliary disease. He spends the majority of his time performing these advanced endoscopic procedures and also cares for these patients in the ambulatory setting. The remainder of his time is devoted to research in endoscopic surgery, with a focus on device development, clinical outcomes, and endoscopic education. His research has resulted in numerous patents, development of new endoscopic procedures, and over 300 publications. He was awarded the Brigham and Women’s Physician Organization Clinical Innovation Award in 2007 for developing and performing the first endoscopic suturing procedure to treat obesity. He also invented anastomosis technology, which has been shown to treat type 2 diabetes effectively in early clinical trials. He was responsible for much of the early work in Bariatric Endoscopy, having been called the founding father of the field, and edited the first textbook and video atlas on the subject. Some of his other important clinical innovations include the development of new endoscopic techniques for treating pancreatic necrosis, gastric outlet obstruction, sleeve gastrectomy stenosis, pancreaticojejunal anastomotic strictures, and postsurgical complications. He also developed an endoscopic part-task simulator used by many fellowship programs (the TEST box).These accomplishments have led to a broad clinical referral base, and to national and international invitations for lectureships and live case demonstrations, including the American College of Gastroenterology (ACG) Blackwell Lectureship, ACG American Journal of Gastroenterology Lecture, American Gastroenterological Association (AGA) Presidential Plenary Lecture, American Society for Gastrointestinal Endoscopy (ASGE) J Edward Berk Presidential Plenary Lecture, ACG Edgar Achkar Visiting Professorship, all post-graduate education courses for the major US gastroenterology and surgical societies, and numerous respected courses throughout Europe, Asia, and South America. He has also mentored more than 20 fellows, many of whom have gone on to thrive in prestigious academic institutions, and he established the first Fellowship in Bariatric Endoscopy. Dr. Thompson is highly rated in 38 conditions, according to our data. His clinical expertise encompasses Obesity, Esophageal Varices, Gastrointestinal Fistula, Endoscopy, and Gastric Bypass. Dr. Thompson is currently accepting new patients.
Massachusetts General Hospital
Gilaad Kaplan is a Gastroenterologist practicing medicine in Boston, Massachusetts. Dr. Kaplan is highly rated in 19 conditions, according to our data. His clinical expertise encompasses Viral Gastroenteritis, Crohn's Disease, Colitis, Endoscopy, and Colonoscopy.
Office
Hamed Khalili is a Gastroenterologist practicing medicine in Boston, Massachusetts. Dr. Khalili is highly rated in 16 conditions, according to our data. His clinical expertise encompasses Ulcerative Colitis, Lymphocytic Colitis, Crohn's Disease, Colonoscopy, and Endoscopy. Dr. Khalili is currently accepting new patients.
Frequently Asked Questions about Dr. Nir M. Bar
How do I make an appointment with Dr. Nir M. Bar?
You can book an appointment with Dr. Nir M. Bar by calling their office at 617-726-2000. MediFind provides direct contact information so you can schedule visits, second opinions, or consultations without navigating third-party calendars.
Is Dr. Nir M. Bar a top-rated expert for Achalasia?
MediFind is an objective health platform that identifies experts based on real-world data. Dr. Nir M. Bar is classified as an Advanced expert for Achalasia, meaning they are among the top experts in the country for this condition. This ranking is based on their volume of patients, published research, and peer connections.
What conditions does Dr. Nir M. Bar specialize in?
While Dr. Nir M. Bar is a Gastroenterology, they have specific expertise in Achalasia, Cyclic Vomiting Syndrome, and Barrett Esophagus. MediFind analyzes a doctor's articles and referral patterns to identify their specific areas of focus within Gastroenterology.
Does Dr. Nir M. Bar participate in research or clinical trials?
Yes. Dr. Nir M. Bar has published 35 articles and abstracts on conditions like Achalasia. You can view a list of Dr. Nir M. Bar's latest peer-reviewed publications and clinical trial participation on their profile to see if they are active in new treatments.
Does Dr. Nir M. Bar accept my insurance?
Dr. Nir M. Bar accepts most major insurance plans, including Aetna and Anthem BCBS. We recommend calling the office directly at 617-726-2000 to verify that your specific plan is currently accepted before your visit.
Areas of Expertise
MediFind evaluates expertise by pulling from factors such as number of articles a doctor has published in medical journals, participation in clinical trials, speaking at industry conferences, prescribing and referral patterns, and strength of connections with other experts in their field.
Learn more about MediFind’s expert tiers
- Advanced
- AchalasiaDr. Bar isAdvanced. Learn about Achalasia.
- Barrett EsophagusDr. Bar isAdvanced. Learn about Barrett Esophagus.
- Cyclic Vomiting SyndromeDr. Bar isAdvanced. Learn about Cyclic Vomiting Syndrome.
- Gastroesophageal Reflux Disease (GERD)
- Experienced
- AscitesDr. Bar isExperienced. Learn about Ascites.
- ColitisDr. Bar isExperienced. Learn about Colitis.
- E Coli EnteritisDr. Bar isExperienced. Learn about E Coli Enteritis.
- EndoscopyDr. Bar isExperienced. Learn about Endoscopy.
- Fabry DiseaseDr. Bar isExperienced. Learn about Fabry Disease.
- Gastrointestinal BleedingDr. Bar isExperienced. Learn about Gastrointestinal Bleeding.
- HeartburnDr. Bar isExperienced. Learn about Heartburn.
- Hemorrhagic ProctocolitisDr. Bar isExperienced. Learn about Hemorrhagic Proctocolitis.
- HepatitisDr. Bar isExperienced. Learn about Hepatitis.
- Hepatitis CDr. Bar isExperienced. Learn about Hepatitis C.
- IndigestionDr. Bar isExperienced. Learn about Indigestion.
- Irritable Bowel Syndrome (IBS)Dr. Bar isExperienced. Learn about Irritable Bowel Syndrome (IBS).
- Liver FailureDr. Bar isExperienced. Learn about Liver Failure.
- Swallowing DifficultyDr. Bar isExperienced. Learn about Swallowing Difficulty.
- Ulcerative ColitisDr. Bar isExperienced. Learn about Ulcerative Colitis.
- Viral GastroenteritisDr. Bar isExperienced. Learn about Viral Gastroenteritis.

