Dr. Gregory Ackert, MD

Dr. Ackert practices at Good Samaritan University Hospital in West Islip, New York, part of Diocese of Rockville Centre.

Dr. Ackert's NPI, 1417991803, was assigned on June 15, 2006. Dr. Ackert graduated from New York University School of Medicine in 1978. Dr. Ackert holds New York license 138398.

Dr. Ackert's primary practice is Good Samaritan University Hospital, at 1000 Montauk Highway, West Islip, NY 11795 in Suffolk County. The practice phone is (631) 376-3000.

Dr. Ackert's primary practice is Good Samaritan University Hospital in West Islip, New York, part of Diocese of Rockville Centre. Dr. Ackert is also affiliated with North Shore University Hospital. The medical group on file is Cardiac Interventional Group. Dmand AI also links Dr. Ackert to 3 more hospitals, 2 group practices and clinics, 1 home health agency and 1 medical group, each named with a free account.

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Ackert practices, 8 sites in all. Vendor and product names are available with a free account.

Gastroenterology is Dr. Ackert's primary specialty in the NPI Registry, under taxonomy code 207RG0100X. Dr. Ackert is board certified in gastroenterology by the American Board of Internal Medicine. Dr. Ackert is licensed in New York.

Dmand AI lists acid reflux, acute gastroduodenitis, acute sinusitis, aneurysm, atrial fibrillation and flutter, bronchitis, chronic anemia and chronic diabetes among the conditions Dr. Ackert treats.

CMS data shows 1,573 Medicare services from Dr. Ackert across 13 procedure codes in 2024, for 528 Medicare patients. Medicare paid $177,017 for them. Every service was in an office.

CMS counts 528 Medicare patients who saw Dr. Ackert in 2024. The largest group is 65 to 74, with 238 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 5% are also on Medicaid. Their average risk score is 1.08, where 1.00 is the Medicare average.

Across all payers, Dmand AI patient panel data puts Dr. Ackert's median patient age at 68, with 50% women.

In 2024, Dr. Ackert wrote 3,899 Medicare Part D claims for 532 patients. 88% of them were for generic drugs. CMS names the drug for 3,442 of them, across 61 drugs with 11 or more claims each, at $333,017 in total drug cost. In 2023, CMS named 3,172 claims across 60 drugs.

CMS publishes a Merit-based Incentive Payment System (MIPS) score of 75 out of 100 for Dr. Ackert for performance year 2024, reported as part of a group. Dr. Ackert accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Ackert as offering telehealth. CMS counts 66 procedures of upper gastrointestinal (gi) endoscopy for acid reflux by Dr. Ackert, more than 68% of the clinicians it reports for that procedure.

Dmand AI links 1 paper to Dr. Ackert. Dr. Ackert's most frequent co-author is Craig R. Smolow, MD.

CMS Open Payments shows 126 general payments to Dr. Ackert from 29 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 100% of the total. Boston Scientific Corporation paid the most, $490.

Dr. Ackert graduated from New York University School of Medicine in 1978.

Dr. Ackert is in network with 15 carriers, including Aetna, United Healthcare and HCSC. PPO plans come from the most carriers, 10. Check the plan with the practice before a visit.