Neil Robert Greenspan, M.D.
Gastroenterology Physician · Providence, RI
Neil Robert Greenspan, M.D. is a gastroenterology physician with a practice address in Providence, Rhode Island, and NPI 1023007556, issued on Oct 18, 2005. Check the license (Rhode Island 07758, as entered in NPPES) on the Rhode Island Board of Medical Licensure and Discipline; the Medicare figures below come from public CMS files.
- Name
- Neil Robert Greenspan
- Credential
- M.D.
- Primary taxonomy
- Gastroenterology Physician 207RG0100X
- License number
- 07758 RI
Self-reported in NPPES; status is on the state search - Practice location
- 44 W River St, Providence, RI 02904
- Phone
- (401) 274-4800
- Enumerated
- Oct 18, 2005
- Record last updated
- Oct 15, 2025
- Fax
- (401) 454-0410
- Medicare enrollment
- Enrolled (PECOS I20101110001292); accepts Medicare assignment
- Medical or professional school
- Columbia University College Of Physicians And Surgeons, 1984
- Entity
- Type 1 · individual
Also registered at 44 W River St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Alyn Adrain, M.D.Gastroenterology Physician1225027766
- Evan Cohen, M.D.Gastroenterology Physician1538158068
- Jaclyn Decoursey, PA-CPhysician Assistant1902466188
- Lisa Dowd, RNPAdult Health Nurse Practitioner1437143526
- Valley Dreisbach, M.D.Gastroenterology Physician1629250527
- Jennifer Fallon, FNP-BCFamily Nurse Practitioner1184435810
Verify Neil Robert Greenspan in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersRhode Island Board of Medical Licensure and Discipline
Search for license 07758Check 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% more Medicare Part D claims than the average gastroenterology physician in 2024
847 Medicare Part D claims for 435 beneficiaries, against an average of 811 among the 16,445 providers of this specialty who prescribed in Part D. Brand-name drugs were 14% of claims.
Most prescribed
- Omeprazole185 claims
- Sod Sulf-Potass Sulf-Mag Sulf165 claims
- Peg 3350-Electrolyte152 claims
- Famotidine77 claims
- Pantoprazole Sodium38 claims
- Balsalazide Disodium31 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.
The MIPS final score for 2023 (Medicare payment program): 76.8 of 100
The Merit-based Incentive Payment System score is reported for this clinician. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).
Bills Medicare through 2 group practices
- Gastroenterology Associates IncProvidence, RI
- University Gastroenterology, LLCProvidence, RI
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Gastroenterology Physician providers in Rhode Island
There are 96 gastroenterology physician records in Rhode Island.
Other gastroenterology physician records in Rhode Island
- Alyn Adrain, M.D.Providence, RI1225027766
- Mahmoud Ahmed Rahal, MDProvidence, RI1104346733
- Paul Akerman, MDProvidence, RI1942302773
- Mohamed Azzouz, M.D.Warwick, RI1760488506
- Pedro Barros, M.D.East Greenwich, RI1649276494
- Eric Berthiaume, M.D.East Greenwich, RI1235223843
- Robert Bierwirth, M.D.Cranston, RI1053517565
- Nicholas Califano, M.D.Providence, RI1679668164
- Leslie Cashel, M.D.Providence, RI1861585515
- William Chen, M.D.Providence, RI1467546051
Common questions
What is Neil Robert Greenspan, M.D.'s NPI number?
Neil Robert Greenspan, M.D.'s National Provider Identifier (NPI) is 1023007556, issued on Oct 18, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Neil Robert Greenspan, M.D. located?
The NPPES record lists a practice address at 44 W River St, Providence, RI, 02904. Phone: (401) 274-4800. Providers update this record themselves, so call before visiting.
How can I verify Neil Robert Greenspan, M.D.'s license?
NPPES lists Rhode Island license number 07758, as entered by the provider. Search the Rhode Island Board of Medical Licensure and Discipline at https://healthri.mylicense.com/Verification/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Neil Robert Greenspan, M.D. prescribe under Medicare Part D?
In 2024, Neil Robert Greenspan, M.D. had 847 Medicare Part D claims for 435 beneficiaries; the average among gastroenterology physician prescribers was 811. Part D covers Medicare prescriptions only.
What is Neil Robert Greenspan, M.D.'s MIPS final score?
The 2023 MIPS final score is 76.8 of 100. The average among 454,083 clinicians with a measured score was 83.5.
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.