Summary

Dr. Gregory Ackert specializes in gastroenterology and internal medicine, bringing nearly five decades of medical expertise to patient care. He earned his medical degree from New York University School of Medicine and completed his residency at Long Island Jewish Medical Center. Dr. Ackert is fluent in both Spanish and English, allowing him to serve a diverse patient community.

Dr. Ackert practices at Long Island Jewish Medical Center in New Hyde Park, NY, and maintains affiliations with Staten Island University Hospital, Staten Island University Hospital South, Northwell Health Hospital, and Katz Women's Hospital at Long Island Jewish Medical Center. He focuses on treating high cholesterol in children and teens, high blood pressure, and hyperlipidemia. His procedural expertise includes performing colonoscopies, EKGs, and lower gastrointestinal endoscopy procedures. Patients have given him an average rating of 4.3 out of 5 stars.

Overview based on verified provider data

Quick Facts

  • 4.3
  • 48 years of experience
  • speaks Spanish, English
  • Li Jewish Medical Center
  • 3 written reviews
  • 2 specialties
  • 11 areas of expertise
  • 2 board certifications
  • 5 hospital affiliations
  • 1 office location
  • Male

Patients’ Perspective

  • Gave an accurate diagnosis
  • Had a good bedside manner
  • Spent time with me

Office Location

Long Island Jewish Medical Center

27005 76th AveNew Hyde Park, NY 11040

Compare with Similar Doctors

Dr. Gregory Mark Ackert, MD
Dr. Weidan Zhao, MD
Dr. Aga Nagorna
Dr. Michael Dann, MD
Dr. Gregory Mark Ackert, MDDr. Weidan Zhao, MDDr. Aga NagornaDr. Michael Dann, MD
GastroenterologyGastroenterologyGastroenterologyGastroenterology
Accepts New Patients Accepts New Patients Accepts New Patients
4.3 
48 Years of Experience 7 Years of Experience 22 Years of Experience
No Virtual Visit Option Virtual Visit Available No Virtual Visit Option Virtual Visit Available
Speaks Spanish, English Speaks English Speaks English Speaks English
New Hyde Park , NYNEW YORK , NYBROOKLYN , NYNEW YORK , NY
Med School: New York University School Of Medicine Med School: University of Toledo Med School: Albert Einstein College of Medicine Med School: State University of New York
Current Profile
View Profile View Profile View Profile

Insurance Plans Accepted by Dr. Gregory Mark Ackert

Be sure to verify insurance information directly with your doctor's office, as it may undergo frequent changes.

Medical Specialties

Dr. Gregory Mark Ackert has the following 2 specialties

Specialty Expertise

Dr. Gregory Mark Ackert has the following 11 areas of expertise

  • Abdominal Pain
  • Acid Reflux Disease (Gastroesophageal Reflux / GERD)
  • Acid Reflux Disease (GERD)
  • Celiac Disease
  • Colonoscopy
  • Constipation
  • Hemorrhoids
  • Hepatitis C
  • Internal Medicine
  • Irritable Bowel Syndrome (IBS)
  • Ulcerative Colitis

Certifications, License, & Education

48 Years Experience

Dr. Gregory Mark Ackert holds an expired medical license in the state of New York.

Medical License

Medical Doctor with an expired medical license in the state of New York that expired in 2026.

Education & Training

Residency

Completed their residency at Li Jewish Medical Center.

Medical School

Graduated from New York University School Of Medicine in 1978.

NPI Number

Dr. Ackert's NPI number is 1417991803.

Similar doctors

Frequently Asked Questions

How can I make an appointment with Dr. Gregory Ackert?
You can find contact information for Dr. Gregory Ackert here on Vitals.
Is Dr. Gregory Ackert accepting new patients?
Dr. Gregory Ackert has not indicated that they accept new patients. Contact their office through their Vitals profile to check for availability.
Does Dr. Gregory Ackert accept my insurance?
You can see the insurance plans that Dr. Gregory Ackert accepts on their Vitals profile.
Which hospitals is Dr. Gregory Ackert affiliated with?
Dr. Gregory Ackert is affiliated with Long Island Jewish Medical Center, Staten Island University Hospital, Staten Island University Hospital South, NORTHWELL HEALTH HOSPITAL, and Katz Womens Hospital At Long Island Jewish Medical Center.
Where is Dr. Gregory Ackert's office located?
Dr. Gregory Ackert's office is located at 27005 76th Ave, New Hyde Park, NY, 11040.

Ensuring Data Transparency and Trust: A Guide to Vitals Doctor Listings and Reviews

Our provider data is gathered directly from physicians and publicly available databases. Providers who verify their profiles gain the ability to update information, offering additional details about their specialties,education, treated conditions, performed procedures, and accepted insurances.

Reviews on Vitals are submitted by users only. Recognizing the valuable insights these reviews offer into a doctor's reputation, we maintain internal policies and protocols to ensure the quality and accuracy of all reviews. Importantly, providers cannot delete or alter reviews independently. Reviews can only be deleted or changed following an internal assessment by our customer service team.

Your feedback is highly valued and we encourage you to contact our support team should you encounter any issues.