Daniel Greenwald, M.D.
Gastroenterology Physician · Providence, RI
Daniel Greenwald, M.D. is a gastroenterology physician with a practice address in Providence, Rhode Island, and NPI 1578902417, issued on Jun 24, 2013. Check the license (Rhode Island MD16474, as entered in NPPES) on the Rhode Island Board of Medical Licensure and Discipline; the Medicare figures below come from public CMS files.
- Name
- Daniel Greenwald
- Credential
- M.D.
- Primary taxonomy
- Gastroenterology Physician 207RG0100X
- License number
- MD16474 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
- Jun 24, 2013
- Record last updated
- Oct 15, 2025
- Fax
- (401) 454-0410
- Medicare enrollment
- Enrolled (PECOS I20190724001139); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest gastroenterology physician records → All 96 in Rhode Island → Look up another NPI →
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 Daniel Greenwald 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 MD16474Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
36% fewer Medicare Part D claims than the average gastroenterology physician in 2024
521 Medicare Part D claims for 246 beneficiaries, against an average of 811 among the 16,445 providers of this specialty who prescribed in Part D. Brand-name drugs were 17% of claims.
Most prescribed
- Omeprazole181 claims
- Peg 3350-Electrolyte133 claims
- Sod Sulf-Potass Sulf-Mag Sulf29 claims
- Pantoprazole Sodium23 claims
- Cholestyramine13 claims
- Nadolol13 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.
Industry payments in 2024: $33.68
1 payment: food and beverage; the largest payer was Takeda Pharmaceuticals U.S.A., 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
- Gastroenterology Associates IncProvidence, RI
- University Gastroenterology, LLCCumberland, RI
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Daniel Greenwald among 96 gastroenterology physician records in Rhode Island
Daniel Greenwald, M.D. is one of 96 gastroenterology physician records with a practice address in Rhode Island. 82% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2013, is newer than 76% of them.
- NPI issued2013 · 76% of these records are older, 21% newer
- In a Medicare fileYes · 82% of these records are
- In the CMS Doctors and Clinicians fileYes · 69% of these records are
- Graduated2013 · median 1997 among the 66 with a school on file
- Record last updated2025 · 51% 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 Rhode Island practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Gastroenterology Physician providers in Rhode Island
There are 96 gastroenterology physician records in Rhode Island.
All 96 in Rhode Island → Every provider in Providence → Gastroenterology Physician nationwide →
The 8 gastroenterology physician records with the nearest ZIP codes
- Alyn Adrain, M.D.Providence, RI 029041225027766
- Evan Cohen, M.D.Providence, RI 029041538158068
- Valley Dreisbach, M.D.Providence, RI 029041629250527
- Tian Gao, M.D.Providence, RI 029041306073846
- Neil Greenspan, M.D.Providence, RI 029041023007556
- Brett Kalmowitz, MDProvidence, RI 029041700817269
- Philip McAndrew, M.D.Providence, RI 029041376614966
- Amanda Pressman, M.D.Providence, RI 029041124059696
Common questions
What is Daniel Greenwald, M.D.'s NPI number?
Daniel Greenwald, M.D.'s National Provider Identifier (NPI) is 1578902417, issued on Jun 24, 2013. An NPI identifies a provider in billing; it is not a license.
Where is Daniel Greenwald, 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 Daniel Greenwald, M.D.'s license?
NPPES lists Rhode Island license number MD16474, 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 Daniel Greenwald, M.D. prescribe under Medicare Part D?
In 2024, Daniel Greenwald, M.D. had 521 Medicare Part D claims for 246 beneficiaries; the average among gastroenterology physician prescribers was 811. Part D covers Medicare prescriptions only.
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.