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Alexander J Greenstein, MD
Surgery
About Me
Dr. Alexander J. Greenstein is the Surgical Co-Director of the IBD Center at Mount Sinai and Professor of Surgery and Health Policy. He specializes in minimally invasive (laparoscopic, single incision, robotic) surgery for Crohn's Disease, Ulcerative Colitis, Diverticulitis and other gastrointestinal (colon, small intestine, gallbladder, stomach) tract disorders. Prior to joining as faculty, Dr. Greenstein completed a surgical residency at The Mount Sinai Hospital and a fellowship in minimally invasive surgery at the Oregon Health and Sciences University in Portland, Oregon. In addition, Dr. Greenstein completed a residency in general preventative medicine and attained a Masters in Public Health at the Mount Sinai School of Medicine. Dr. Greenstein graduated from Cornell Medical College in New York with Alpha Omega Alpha distinction after completing his bachelor’s degree in economics cum laude with distinction at Yale University.
Dr. Greenstein is certified by the American Board of Surgery and is a Fellow of the American College of Surgeons (FACS). He has been a first or co-author of more than 60 peer-reviewed manuscripts, has editorial responsibilities at several journals, and has presented his work at both regional and national surgical meetings. He is a recipient of the David A. Dreiling Award for Scholarly Excellence from the Mount Sinai Department of Surgery.
Dr. Greenstein is an active member of multiple surgical societies (ACS, SSAT, SAGES). Research engagements include experiences at the National Institute of Mental Health, the Memorial Sloan Kettering Medical Center and the Brazilian Ministry of Health. His research focuses on advances and techniques in GI surgery for Crohn’s and Ulcerative Colitis and he has interest in health disparities and preventive medicine. In coordination with members of the department of colorectal surgery, Dr. Greenstein is actively involved in the rollout of the Adrian J. Greenstein IBD surgical database whose goal is to answer important surgical questions and improve patient outcomes.
In the News:
- Dr. Greenstein weighs in on the groundbreaking LASER trial which demonstrates that surgical intervention can definitively enhance quality of life for patients with persistent recurrent diverticulitis.
- Dr. Greenstein discusses Inflammatory Bowel Disease in the New York Daily News Daily Checkup
- Watch Dr. Greenstein perform a Minimally Invasive Subtotal Colectomy; a Laparoscopic J pouch for UlcerativeColitis; Laparoscopic Ileocolic Resection for Crohn’s Disease; and a Strictureplasty for Crohn's Disease
- Watch Dr. Greenstein's patient tell her story about Ulcerative Colitis on EverydayHealth
- Investigate one of Dr. Greenstein's mystery cases, featured in Reader's Digest. Is it Crohn's Disease or not?
- Dr. Greenstein shares his take on the idea of Laparoscopic Resection in Crohn’s is more cost-effective than Infliximab.
- Hear Dr. Greenstein’s opinion on the idea that surgery may curb risk of recurrent adhesive small-bowel obstruction.
- Dr. Greenstein shares how common appendicitis is and the timeframe of symptoms and rupture.
Recommended External Links
Crohn's and Colitis Foundation of America: http://www.crohnscolitisfoundation.org/what-are-crohns-and-colitis/what-is-crohns-disease/
http://www.crohnscolitisfoundation.org/what-are-crohns-and-colitis/what-is-ulcerative-colitis/
Colon and Rectal Cancer Surgery: https://www.cancer.org/cancer/colon-rectal-cancer/treating/colon-surgery.html
Ostomy Information - United Ostomy Associates of America: https://www.ostomy.org/what-is-an-ostomy/
Language
English, French, Spanish
Position
PROFESSOR | Surgery, PROFESSOR | Population Health Science and Policy
Hospital Affiliations
- Mount Sinai Morningside
- Mount Sinai Beth Israel
- The Derfner Foundation Ambulatory Surgery Center
- Mount Sinai Brooklyn
- Mount Sinai Queens
- The Mount Sinai Hospital
- New York Eye and Ear Infirmary of Mount Sinai
- Mount Sinai West
Clinical Focus
- Abdominal Hernia
- Appendicitis
- Cholecystectomy
- Colorectal Cancer
- Colorectal Resection
- Colorectal Surgery
- Crohn's Disease
- Diverticulitis
- Fistula
- Gallstones
- Gastrectomy
- Hernia Repair
- Inflammatory Bowel Disease
- Laparoscopic Hernia Repair
- Splenectomy
- Stomach Cancer
- Surgery Second Opinion
- Ulcerative Colitis
Education
BA, Yale University
MD, Weill Medical College of Cornell University
MPH, Mount Sinai School of Public Health
Residency, Surgery (General Surgery)
New York Presbyterian Hospital-Weill Cornell Center
Residency, Preventive Medicine, Public Health & General Preventive Medicine
Mount Sinai Hospital
Residency, Surgery (General Surgery)
Mount Sinai Hospital
Fellowship, Surgery, Laparoscopic
Oregon Health & Science University-OHSU GME
Certifications
American Board of Surgery
Awards
Alpha Omega Alpha
Cornell University
Cum Laude with Distinction in the Major
Yale University
David A. Dreiling Award for Scholarly Excellence
Mount Sinai Residency Program
Surgical Residents Scholarship Award
Pfizer
Insurance Information
Accepted insurance may vary by the doctor’s office location. Please contact the office directly to obtain the most up-to-date insurance information.
- 1199 SEIU
- AETNA - Commercial
- AETNA - Medicare
- Affinity Medicaid-Medicare-Essential Exchange
- Amidacare Medicaid
- CIGNA Healthcare
- Centivo
- Elderplan
- EmblemHealth - GHI-PPO
- EmblemHealth - HIP
- EmblemHealth - HIP-Medicaid
- EmblemHealth - HIP-Medicare
- Empire Blue Cross Blue Shield - Commercial/Exchange
- Empire Blue Cross Blue Shield - HealthPlus Medicaid
- Empire Blue Cross Blue Shield - Medicare
- Fidelis Health Care
- HealthFirst Medicaid
- HealthFirst Medicare
- Horizon NJ
- Magnacare-Health Care
- Medicare - NJ
- Medicare - NY
- Metroplus
- Multiplan PHCS
- NJ Medicaid
- NY Medicaid
- Oscar
- Oxford - Freedom and Liberty
- Partners Health Plan
- Senior Whole Health
- United Health Care - Commercial
- United Health Care - Empire Plan
- United Health Care - Oxford Care
- United Health Care - Top Tier
- VNSNY Choice Medicare
- VNSNY Select Health Medicaid
- VillageCareMax
- WellCare Health Plan
Physicians who provide services at hospitals and facilities in the Mount Sinai Health System might not participate in the same health plans as those Mount Sinai hospitals and facilities (even if the physicians are employed or contracted by those hospitals or facilities).
Information regarding insurance participation and billing by this physician may be found on this page, and can also be obtained by contacting this provider directly. Because physicians insurance participation can change, the insurance information on this page may not always be up-to-date. Please contact this physician directly to obtain the most up-to-date insurance information.
Insurance and health plan networks that the various Mount Sinai Health System hospitals and facilities participate in can be found on the Mount Sinai Health System website.
Publications
Selected Publications
- Understanding Pouch-Related Fistulae: Don't Lose Track of Time. Sergio Bronze, Serre Yu Wong, Haley Waite, Sergey Khaitov, Michael Plietz, Sue Hahn, Alexander Greenstein, Patricia Sylla, Jean Frederic Colombel, Maia Kayal. Inflammatory Bowel Diseases
- A review of early small bowel obstructions in staged IPAA procedures. Marine Coste, Sarah Cao, Maia Kayal, Yun Hwa Walter Wang, Sue J. Hahn, Sergey Khaitov, Patricia A. Sylla, Marla C. Dubinsky, Michael C. Plietz, Alexander J. Greenstein. Surgical Endoscopy
- Pouch Body Anastomotic Ulcerations Are Not Associated with an Increased Risk of Pouchitis. Marouf Hossain, Michael Plietz, Sergey Khaitov, Patricia Sylla, Alexander Greenstein, Marla C. Dubinsky, Maia Kayal. Inflammatory Bowel Diseases
Patient Experience Star Ratings and Comments
The Patient Experience Star Rating reflects our patients’ perception of how well their Mount Sinai provider communicated with them during an office visit. The Star Rating is based on patient responses to three questions on a patient experience survey, a standardized questionnaire sent to verified patients and distributed by a third party vendor, Press Ganey. Responses are measured on a scale of 1 to 5, with 5 being the best score.
Care Provider’s Explanation
Care Provider’s Concern
Likelihood to Recommend Care Provider
Industry Relationships
Physicians and scientists on the faculty of the Icahn School of Medicine at Mount Sinai often interact with pharmaceutical, device, biotechnology companies, and other outside entities to improve patient care, develop new therapies and achieve scientific breakthroughs. In order to promote an ethical and transparent environment for conducting research, providing clinical care and teaching, Mount Sinai requires that salaried faculty inform the School of their outside financial relationships.
Dr. Greenstein has not yet completed reporting of Industry relationships.
Mount Sinai’s faculty policies relating to faculty collaboration with industry are posted on our website. Patients may wish to ask their physician about the activities they perform for companies.