NPPES file of Aug 9, 2026

Elizabeth Decker, DO

Gastroenterology Physician · Warwick, RI

Elizabeth Decker, DO is a gastroenterology physician with a practice address in Warwick, Rhode Island, and NPI 1811257934, issued on May 23, 2012. Check the license (Rhode Island DO00930, as entered in NPPES) on the Rhode Island Board of Medical Licensure and Discipline; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1811257934
Name
Elizabeth Decker
Credential
DO
Primary taxonomy
Gastroenterology Physician 207RG0100X
License numbers
DO00930 RI
UO2738 FL
Self-reported in NPPES; status is on the state search
Practice location
455 Toll Gate RD, Warwick, RI 02886
Phone
(401) 737-7010
Enumerated
May 23, 2012
Record last updated
Feb 20, 2023
Medicare enrollment
Enrolled (PECOS I20181107003425); accepts Medicare assignment
Medical or professional school
University Of New England, College Of Osteo Medicine, 2011
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 455 Toll Gate RD

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Reshma Abraham, MDInternal Medicine Physician1972943413
  2. Ahmad Abu Dayyeh, MDInternal Medicine Physician1265322275
  3. Hadeel Al-Rawi, MDInternal Medicine Physician1780569533
  4. Matthew AlamEmergency Medicine Physician1609718170
  5. Mareena Aldayani, DOStudent in an Organized Health Care Education/Training Program1740977610
  6. Khalid Alhourani, MDPulmonary Disease Physician1831232636

Verify Elizabeth Decker in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersRhode Island Board of Medical Licensure and Discipline
    Search for license DO00930
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the Rhode Island license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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21% fewer Medicare Part D claims than the average gastroenterology physician in 2024

641 Medicare Part D claims for 142 beneficiaries, against an average of 811 among the 16,445 providers of this specialty who prescribed in Part D.

  1. Elizabeth Decker641
  2. Specialty average811

Most prescribed

  1. Pantoprazole Sodium214 claims
  2. Omeprazole150 claims
  3. Famotidine55 claims
  4. Cholestyramine24 claims
  5. Mesalamine19 claims
  6. Dicyclomine Hcl14 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: $1,301.69

69 payments; by number, the most common kind was food and beverage; the largest payer was Abbvie 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.

  1. Elizabeth Decker$1,301.69
  2. Specialty average$5,015.95

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

  1. Affinity Physicians LLC.Warwick, RI
  2. University Gastroenterology, LLCEast Greenwich, RI

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Elizabeth Decker among 96 gastroenterology physician records in Rhode Island

Elizabeth Decker, DO 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 2012, is newer than 75% of them.

  • NPI issued2012 · 75% of these records are older, 24% newer
  • In a Medicare fileYes · 82% of these records are
  • In the CMS Doctors and Clinicians fileYes · 69% of these records are
  • Graduated2011 · median 1997 among the 66 with a school on file
  • Record last updated2023 · 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.

The 8 gastroenterology physician records with the nearest ZIP codes

  1. Mohamed Azzouz, M.D.Warwick, RI 028861760488506
  2. Kaitlyn Egger, DOWarwick, RI 028861831651462
  3. Timothy GrazianoWarwick, RI 028861871236992
  4. Antoine Hadamard, MDWarwick, RI 028861114023017
  5. Sulman KhanWarwick, RI 028861841931441
  6. Tamara Koritarov, DOWarwick, RI 028861194286799
  7. Seetha Lakshmanan, MDWarwick, RI 028861972099463
  8. Shoheera Punjwani, DOWarwick, RI 028861427636893

Common questions

What is Elizabeth Decker, DO's NPI number?

Elizabeth Decker, DO's National Provider Identifier (NPI) is 1811257934, issued on May 23, 2012. An NPI identifies a provider in billing; it is not a license.

Where is Elizabeth Decker, DO located?

The NPPES record lists a practice address at 455 Toll Gate RD, Warwick, RI, 02886. Phone: (401) 737-7010. Providers update this record themselves, so call before visiting.

How can I verify Elizabeth Decker, DO's license?

NPPES lists Rhode Island license number DO00930, 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 Elizabeth Decker, DO prescribe under Medicare Part D?

In 2024, Elizabeth Decker, DO had 641 Medicare Part D claims for 142 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.