Gregory Ackert, M.D.
Gastroenterology Physician · New Hyde Park, NY
Gregory Ackert, M.D. is a gastroenterology physician with a practice address in New Hyde Park, New York, and NPI 1417991803, issued on Jun 15, 2006. Check the license (New York 138398, as entered in NPPES) on the NYS Education Department, Office of the Professions; the Medicare figures below come from public CMS files.
- Name
- Gregory Ackert
- Credential
- M.D.
- Primary taxonomy
- Gastroenterology Physician 207RG0100X
- License number
- 138398 NY
Self-reported in NPPES; status is on the state search - Practice location
- 1983 Marcus Ave, New Hyde Park, NY 11042
- Phone
- (516) 627-2121
- Enumerated
- Jun 15, 2006
- Record last updated
- Jul 31, 2014 (not updated in 12 years: call before relying on the address or phone)
- Fax
- (516) 627-4922
- Medicare enrollment
- Enrolled (PECOS I20040723000805); accepts Medicare assignment
- Medical or professional school
- New York University School Of Medicine, 1978
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest gastroenterology physician records → All 1,797 in New York → Look up another NPI →
Also registered at 1983 Marcus Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Andrew Adesman, MDDevelopmental - Behavioral Pediatrics Physician1407985286
- Nancy Alfieri, NPRegistered Nurse1447376959
- Lisa Andersen, PTPhysical Therapist1528213162
- Gina Arguelles, M.A., CCC-SLPSpeech-Language Pathologist1497900443
- John Benjamin, M.D.Psychiatry Physician1275611220
- Victoria Chen, MDDevelopmental - Behavioral Pediatrics Physician1780844001
Verify Gregory Ackert in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersNYS Education Department, Office of the Professions
Search for license 138398Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
4.8 times the Medicare Part D claims of the average gastroenterology physician in 2024
3,899 Medicare Part D claims for 532 beneficiaries, against an average of 811 among the 16,445 providers of this specialty who prescribed in Part D.
Most prescribed
- Pantoprazole Sodium372 claims
- Atorvastatin Calcium237 claims
- Rosuvastatin Calcium229 claims
- Carvedilol227 claims
- Omeprazole162 claims
- Amlodipine Besylate153 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
No measured MIPS final score for 2023
CMS assigned the neutral MIPS final score of 75 without scoring Quality, Cost, Promoting Interoperability or Improvement Activities. It is an administrative threshold, so PlainDoctor does not compare it with measured clinicians.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $700.57
26 payments; by number, the most common kind was food and beverage; the largest payer was Phathom Pharmaceuticals, Inc. The 13,350 providers of this specialty with any payment received $5,015.95 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through 2 group practices
- Chs Physician Partners PCNew Hyde Park, NY
- Long Island Cardiovascular Imaging Consultants, PCNew Hyde Park, NY
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Gregory Ackert among 1,797 gastroenterology physician records in New York
Gregory Ackert, M.D. is one of 1,797 gastroenterology physician records with a practice address in New York. 88% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 15% of them.
- NPI issued2006 · 15% of these records are older, 44% newer
- In a Medicare fileYes · 88% of these records are
- In the CMS Doctors and Clinicians fileYes · 77% of these records are
- Graduated1978 · median 1999 among the 1,378 with a school on file
- Record last updated2014 · 65% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RG0100X and a New York practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
40 gastroenterology physician records list a practice address in New Hyde Park
They are 40 of the 4,217 NPPES records with a practice address in New Hyde Park, and 1,797 gastroenterology physician records in New York.
All 1,797 in New York → Every provider in New Hyde Park → Gastroenterology Physician nationwide →
The 8 gastroenterology physician records with the nearest ZIP codes
- Allen Ahdoot, M.D.New Hyde Park, NY 110421053364323
- Paul Berg, MDNew Hyde Park, NY 110421003870429
- Jeffrey Berger, M.D.New Hyde Park, NY 110421174526941
- Eugene Bonapace, M.D.New Hyde Park, NY 110421053316505
- Anthony Celifarco, M.D.New Hyde Park, NY 110421205839305
- Robert Gal, MDNew Hyde Park, NY 110421356396675
- Lev Ginzburg, M.D.New Hyde Park, NY 110421528086212
- Steven Goldenberg, M.D.Lake Success, NY 110421558303586
Common questions
What is Gregory Ackert, M.D.'s NPI number?
Gregory Ackert, M.D.'s National Provider Identifier (NPI) is 1417991803, issued on Jun 15, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Gregory Ackert, M.D. located?
The NPPES record lists a practice address at 1983 Marcus Ave, New Hyde Park, NY, 11042. Phone: (516) 627-2121. Providers update this record themselves, so call before visiting.
How can I verify Gregory Ackert, M.D.'s license?
NPPES lists New York license number 138398, as entered by the provider. Search the NYS Education Department, Office of the Professions at https://www.op.nysed.gov/services/verifications/online-verification-searches. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Gregory Ackert, M.D. prescribe under Medicare Part D?
In 2024, Gregory Ackert, M.D. had 3,899 Medicare Part D claims for 532 beneficiaries; the average among gastroenterology physician prescribers was 811. Part D covers Medicare prescriptions only.
What is Gregory Ackert, M.D.'s MIPS final score?
CMS assigned the neutral MIPS final score of 75 for 2023 without scoring any category, so it is not a measured result.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.