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Dr. Alexander Greenstein, MD

General Surgery* Age 47
Dr. Alexander Greenstein, MD
4.9 (74 Ratings)

Offers telehealth

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Dr. Alexander Greenstein, MD
4.9 (74 Ratings)
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Dr. Alexander Greenstein, MD

General Surgery* Age 47
New York, NY
Accepting new patients
21 years of experience

Offers telehealth



Dr. Alexander Greenstein, MD works in New York, NY as a Surgeon and has 21 years experience.

They are board certified in General Surgery and graduated from Weill Cornell Medical College in 2003. Dr. Greenstein completed a residency at Mount Sinai Hospital. Dr. Greenstein has has worked on more claims relating to Crohn's Disease than other providers in the area. At present, Dr. Greenstein has received an average rating of 4.9 from patients and has been reviewed 74 times. They are affiliated with Mount Sinai Hospital. Their office accepts new patients and has telehealth appointments. Dr. Greenstein practices at May Center for Mount Sinai Doctors in New York, NY.

Offers Telehealth

This provider offers telehealth appointments. Call the office to schedule.

Explains Conditions Well

Patients said this doctor explains conditions well.


Patients said this doctor is trustworthy.

Friendly Staff

Patients said the staff was friendly.

Easy Scheduling

Patients said scheduling was easy.


  1. 1 May Center for Mount Sinai Doctors
    5 E 98th St # 1259, New York, NY 10029

Insurance Accepted

* Please verify this information when scheduling an appointment.
  • Choice Plus POS II
  • Personal Choice PPO
  • Blue Access (Select Network)-NY
    Blue Priority (Select Network)-NY
    Empire (Select Network)-NY POS
    National (BlueCard Basic) PPO
    National (BlueCard) PPO
  • Blue Card PPO
  • HealthyBlue 2.0
    HealthyBlue Advantage
  • Cigna PPO
    Open Access Plus
  • Choice Care PPO
Telehealth Options
This provider has not specified a telehealth appointment method. Would you still like to make an appointment with Dr. Greenstein?
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(212) 241-8679

Ratings & Reviews

Likelihood to recommend Dr. Greenstein
Based on 74 Reviews
5 Stars (71)
4 Stars (0)
3 Stars (0)
2 Stars (2)
1 Star (1)

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Patient Reviews
Sep 24, 2023
Dr. Greenstein performed a Colon Resection on me in June of 2022. I travel almost two hours to get to his office but he is the best and came highly recommended. He and his surgical team are very down to earth and take the time to listen and respond to your concerns. For those of us that travel from a far they realize we are away from our families and they go out of their way to make us feel very welcomed at the hospital at all times. My surgery went well and the chemo that followed thereafter was not as bad as I imagined. He makes sure that the cancer center makes you feel as comfortable as possible. He is the best and I am happy to be alive thanks to him.
Maria — Sep 24, 2023
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Photo: Dr. Alexander Greenstein, MD
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Dr. Greenstein's Office & Staff

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About Me

General Surgery
  • *Medical News Today does not verify qualifications for medical specialties. Please verify your provider's specialty and qualifications directly with your provider and applicable medical board.


Medical Education
  • Weill Cornell Medical College
Medical Education
Board Certifications
  • General Surgery
Board Certifications
What’s a board certification and why is it important that my provider has one?

A board certification represents a provider’s dedication to ongoing training in one or more specialties, including the completion of intensive exams. While not all specialties have board certifications, if your provider does have one they’ve taken the extra step to master their specialty and to keep up with the latest advancements in their field.
  • New York Presbyterian Hospital - New York Weill Cornell Center
Residency Hospital
  • Mount Sinai Hospital
Residency Hospital
Fellowship Hospital
  • Ohsu Hospital and Clinics
Fellowship Hospital

Frequently Asked Questions

Dr. Alexander Greenstein, MD accepts new patients on Medical News Today.

Dr. Greenstein accepts telehealth appointments. Please call Dr. Greenstein's office to make an appointment.

Dr. Greenstein accepts Aetna, Amerihealth and Anthem as well as many others. See all of the insurances Dr. Greenstein accepts here.

Dr. Greenstein frequently sees patients for Crohn's Disease.

Dr. Greenstein has a star rating of 4.9/5 and has been reviewed 74 times.

Dr. Greenstein has been practicing as a Surgeon for 21 years.

Hospital Affiliations

  • Mount Sinai Hospital
Dr. Alexander Greenstein, MD

Dr. Alexander Greenstein, MD