Medical Associates of Manhattan is a full-service gastroenterology and internal medicine practice, dedicated to providing top-quality, state-of-the-art care and treatment for patients from throughout the New York City metro region. Located on the Upper East Side of Manhattan, Medical Associates of Manhattan offers men and women the most advanced diagnostic and care options for a wide array of medical issues and concerns, including colon polyps and colon cancer, ulcerative colitis, Crohn’s disease, irritable bowel syndrome, constipation and diarrhea, gas and bloating, acid reflux and gastroesophageal reflux disease (GERD), hemorrhoids and abdominal pain.

The physicians and medical staff at Medical Associates of Manhattan are committed to the highest standards of care so patients can feel confident they’ll be receiving the safest and most appropriate treatments no matter what their underlying issue may be. The office is equipped with state-of-the-art technology aimed at providing the most advanced care options for optimal results in every patient, including advanced techniques for colonoscopy and endoscopy for results that are delivered more quickly and with the greatest degree of accuracy.

Both Dr. Grant and Dr. Herman are recognized as top providers of gastroenterology and internal medicine care, and both have extensive training and experience in providing preventive care as well as treatment for both acute and chronic medical conditions in men and women throughout the New York City area.

Located on E. 60th Street, Medical Associates of Manhattan is easily accessible by car and public transportation, and the practice accepts most major forms of medical insurance.

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Lawrence Herman, MD

Gastroenterologist & Internist

Dr. Lawrence Herman was born, raised and educated in New York. He graduated Magna cum laude at Columbia University where he earned a Bachelor of Arts Degree in Biology. He was elected to the Phi Beta Kappa Honor Society at Columbia. He commenced his medical training at the Cornell University Medical College and completed a medical residency in Internal Medicine at The New York Hospital-Cornell Medical Center. Following residency, Dr. Herman completed his advanced training with a Fellowship in Gastroenterology and Hepatology at the Memorial Sloan-Kettering Cancer Center in New York. There he received the Paul Sherlock Award for Excellence in the Diagnosis and Management of Gastrointestinal Oncology. Dr Herman specializes in the evaluation and management of esophageal disorders (difficulty swallowing, GERD and heartburn), indigestion (dyspepsia), gastric and duodenal ulcers, celiac disease and inflammatory bowel disease.His particular interest is the diagnosis and management of colon polyps and colon cancer. Dr. Herman has published extensively in the gastroenterology literature with a focus on the diagnosis and management of gasrointestinal cancers and endoscopic diagnostic and therapeutic technology. Dr. Herman is a Fellow of the American College of Gastroenterology and is actively involved with the training of residents, fellows and medical students at the Weill Cornell Medical College of Cornell University. Dr. Herman is Board Certified in Gastroenterology and Internal Medicine.

Dr. Herman is isted in
-America’s Best Gastroenterologists
-America’s Best Physicians Top 10 Doctors

Herman LL, McKee KJ, Thaler HT, Winawer SJ, Kurtz RC. “Identification of Risk Factors for the Development of Vasovagal Reactions During Colonoscopy” Gastrointestinal Endoscopy: 1993; 39:388-391

Herman LL, Brennan MF, Shike M. “Acute Pancreatitis from Intussusception of a Gastric Polyp in a Patient With Gardner’s Syndrome” Digestive Diseases and Sciences: 1992; 37:955-960

Herman LL, Shike M. Percutaneous Endoscopic Gastrostomy for Decompression of the Stomach and Small Intestine” Gastrointestinal Endoscopy: 1992; 38: 314-318

Pickering TG, Herman LL, Devereux R, et al. “Recurrent Pulmonary Oedema in Hypertension Due to Bilateral Renal Artery Stenosis: Treatment by Angioplasty or Surgical Revascularization” Lancet: 1988; 2:591-592

Dov Grant, MD

Gastroenterologist & Internist

Dr. Dov Grant is a top-rated gastroenterologist and internist at Medical Associates of Manhattan, providing the most advanced care options for patients on the Upper East Side and throughout Manhattan and New York City. Dr. Grant offers state-of-the-art care for a wide array of medical and health issues, including irritable bowel syndrome (IBS), inflammatory bowel disease (IBD), acid reflux and GERD, hemorrhoids, constipation and diarrhea, gas and bloating, Crohn’s disease, ulcerative colitis, colon polyps and colorectal cancer, and abdominal pain.

Dr. Grant received his medical degree from New York University School of Medicine, followed by an internship and residency in internal medicine and a fellowship in gastroenterology at NYU-affiliated hospitals, including University Hospital (Langone), Bellevue Hospital and Manhattan Veterans Administration Hospital.

Dr. Grant has been widely published and has received several awards and recognition for his contributions in gastroenterology, and he has been named one of the top gastroenterologists in the country. In addition to his practice, Dr. Grant maintains active affiliations with Beth Israel Medical Center/ Mount Sinai Beth Israel and Mount Sinai School of Medicine and Mount Sinai Medical Center in Manhattan.

Dov Z. Grant, Ellen J. Scherl, Albert M. Waitman, and Frank Z. Chateau. “Laser Therapy of Vascular Abnormalities,” in Therapeutic Gastrointestinal Endoscopy, ed. Stephen E. Silvis. Igaku-Shoin:New York, 1990

Albert M. Waitman, Dov Z. Grant, and Frank Z. Chateau. “Endoscopic laser photocoagulation of bleeding gastrointestinal telangiectasia” (abstract). Gastrointestinal Endoscopy 27:139-140, 1981.

Albert M. Waitman, Dov Z. Grant, Ellen J. Scherl, and Frank Z. Chateau. “Laser endoscopy – Beth Israel experience in 250 patients.” (abstract) Gastrointestinal Endoscopy 31:530, 1985.

Albert M. Waitman, Dov Z. Grant, and Roy Debeer. “Endoscopic laser photocoagulation: Comparison of argon and Nd:YAG.” Gastrointestinal Endoscopy 25:521, 1979.

July 1, 1977-present Associate Attending, Departments of Medicine and Gastroenterology , Beth Israel Medical Center/ Mount Sinai Beth Israel, New York, New York

July 1, 1977-present Clinical Instructor, Mount Sinai School of Medicine and Mount Sinai Medical Center, New York, New York

Course Director, Annual Endoscopy Course, New York Society for Gastrointestinal Endoscopy, 1986
Listed in Guide to America’s Top Gastroenterologists
Physician Associate, Center for Health Transformation, CHT Health Solutions Lab
GI Endoscopy Quality Award, GI Quality Improvement Project
Excellence Award, GI Endoscopy Quality Measures, Clinical Outcomes Research Initiative (CORI)

Carnegie Hill Endoscopy

Dr. Herman and Dr. Grant perform procedures at Carnegie Hill Endoscopy using FUSE Endosocpes. With state-of-the-art technology at the facility, Dr. Grant and Dr. Herman provide the best endoscopic care for their patients in addition to serving patients at their Medical Associates of Manhattan office. For more information please visit:

Mount Sinai Beth Israel

Mount Sinai Beth Israel is a member of the Mount Sinai Health System, the largest health care system in New York City. As such, it provides Dr. Grant access to a wide variety of specialists to whom he can refer his patients. The clout of Provider Partners of Mount Sinai allows Dr. Grant to get approval for testing and prescriptions that might not be permitted otherwise.

The facilities of the Mount Sinai system include: the Icahn School of Medicine, Mount Sinai Hospital, Mount Sinai Beth Israel. Mount Sinai St. Luke’s, Mount Sinai West (Roosevelt), New York Eye and Ear Infirmary, among others. The integration of these sites provides Dr. Grant a wider referral base than does a single hospital.

Nevertheless, one of Dr. Grant’s goals is to keep his patients out of the hospital.

For more information please visit:

New York Presbyterian-Cornell Medical Center

Dr. Herman is only affiliated with the hospital and is no longer an active attending physician.