
Mount Sinai Doctors–Long Beach
Gastroenterology • Long Beach, NY • Since 1928 • 1 facility (Mount Sinai Doctors-Long Beach) locations
Information from public sources; not independently verified. Confirm hours, insurance and appointment availability with the clinic.
Last gathered July 11, 2026. How our information is sourced · Report incorrect information
About
Mount Sinai Doctors–Long Beach is part of Mount Sinai’s network serving the Long Beach area, offering outpatient and primary care to the South Shore of Long Island. The related Mount Sinai South Nassau facility (Oceanside, NY) is a large, nonprofit teaching hospital with extensive services (cardiac, cancer, orthopedics, bariatrics, emergency, radiology), multiple outpatient centers, and rehabilitation/telehealth options. It operates as a separate entity in Oceanside but is part of the Mount Sinai system, and the broader Mount Sinai South Nassau campus emphasizes advanced treatments (e.g., radiosurgery) and designated specialty programs.
Services Offered
Technology & Equipment
Insurance & Payment
Not published.
Languages Spoken
Not published.
Social Media
Photos
Photos published by Mount Sinai Doctors–Long Beach showing the gastroenterology practice in Long Beach, NY.








What Patients Say
Overall sentiment across review platforms: mixed
- Birdeye (Emergency Department): 3.3 out of 5 stars (12 reviews)
- Healthgrades (Dr. Jason Esses): 4.4 out of 5 stars (7 reviews)
Patients praise
- Excellent bedside manner and caring nature of physicians
- Knowledgeable and thorough medical care
- Friendly and polite office staff in specific instances
- Convenient location and facility cleanliness
- Efficient visit times for some patients
Common complaints
- Long wait times in emergency settings
- Poor responsiveness of office staff for calls/requests
- Concerns regarding nursing staff attitude
- Dissatisfaction with emergency department care quality
"Dr Rehm and her staff are exceptional. Communication between the group and me is awesome, especially through the app."
- LocalityBiz review for Mount Sinai Doctors-Long Beach"Unless you have a boo-boo and need a bandaid I wouldn’t recommend this place. If you’re actually hurt and need medical attention DO NOT GO HERE!!"
- Birdeye review for Mount Sinai South Nassau Long Beach Emergency Department"A visit? That would be great! His office never responds to calls - emergency, requests from doctors and hospitals, no one."
- Healthgrades review for Dr. Jason Esses at Mount Sinai Doctors Long BeachSynthesized from public review platforms as of Jul 11, 2026 - sources: [1][2][3][4].
In the News
- Kristin Sticco - May 23, 2026
- Long Beach Lifeguards receive fresh support from Mount Sinai South Nassau | Herald Community Newspapers | www.liherald.com - Jul 3, 2026
- How To Beat The Heat, From A Mount Sinai South Nassau Expert | Long Beach, NY Patch - Jul 1, 2026
- Hundreds attend Mount Sinai South Nassau’s annual Boardwalk Health Fair in Long Beach | Herald Community Newspapers | www.liherald.com - Jul 11, 2025
- Mount Sinai, Anthem contract dispute forces thousands of Long Island patients to find new doctors | Herald Community Newspapers | www.liherald.com - Dec 31, 2025
Information sourced from the clinic's website as of July 11, 2026.
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