NPPES file of Aug 9, 2026

Irving Thomas Gilson, M.D.

Cardiovascular Disease Physician · Warwick, RI

Irving Thomas Gilson, M.D. is a cardiovascular disease physician with a practice address in Warwick, Rhode Island, and NPI 1821157454, issued on Dec 8, 2006. Check the license (Rhode Island MD03444, 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
1821157454
Name
Irving Thomas Gilson
Credential
M.D.
Primary taxonomy
Cardiovascular Disease Physician 207RC0000X
License number
MD03444 RI
Self-reported in NPPES; status is on the state search
Practice location
400 Bald Hill RD, Warwick, RI 02886
Phone
(401) 737-9091
Enumerated
Dec 8, 2006
Record last updated
Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
Fax
(401) 737-0442
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Also registered at 400 Bald Hill RD

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

  1. Scott Bessette, LMHCMental Health Counselor1417108523
  2. Joseph BlanchardHearing Instrument Specialist1548646045
  3. Tara Bogs, PH.D.Clinical Psychologist1043385081
  4. Kalina Brabeck, PH.D.Counseling Psychologist1417109232
  5. Amber Champagne, PSYDClinical Psychologist1073245940
  6. Irene Chliwner, MDInternal Medicine Physician1588745491

Verify Irving Thomas Gilson 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 MD03444
    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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98% fewer Medicare Part D claims than the average cardiovascular disease physician in 2024

71 Medicare Part D claims, against an average of 3,078 among the 20,728 providers of this specialty who prescribed in Part D. Brand-name drugs were 24% of claims.

  1. Irving Gilson71
  2. Specialty average3,078

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.

Irving Thomas Gilson among 120 cardiovascular disease physician records in Rhode Island

Irving Thomas Gilson, M.D. is one of 120 cardiovascular disease physician records with a practice address in Rhode Island. 79% 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 19% of them.

  • NPI issued2006 · 19% of these records are older, 38% newer
  • In a Medicare fileYes · 79% of these records are
  • In the CMS Doctors and Clinicians fileNo · 66% of these records are
  • Record last updated2007 · 63% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RC0000X and a Rhode Island practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Cardiovascular Disease Physician providers in Rhode Island

There are 120 cardiovascular disease physician records in Rhode Island.

The 8 cardiovascular disease physician records with the nearest ZIP codes

  1. Christian Herard, MDWarwick, RI 028861013059476
  2. Heather Hurlburt, MDWarwick, RI 028861932278322
  3. Jennifer Jarbeau, MDWarwick, RI 028861023012572
  4. Kenneth Salzsieder, M.D.Warwick, RI 028861689650327
  5. Richard San Antonio, MDWarwick, RI 028861346228988
  6. Ara Tachjian, MDWarwick, RI 028861063790061
  7. Edward Thomas, MDWarwick, RI 028861154327245
  8. Lincoln Tirpaeck, DOWarwick, RI 028861245625045

Common questions

What is Irving Thomas Gilson, M.D.'s NPI number?

Irving Thomas Gilson, M.D.'s National Provider Identifier (NPI) is 1821157454, issued on Dec 8, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Irving Thomas Gilson, M.D. located?

The NPPES record lists a practice address at 400 Bald Hill RD, Warwick, RI, 02886. Phone: (401) 737-9091. Providers update this record themselves, so call before visiting.

How can I verify Irving Thomas Gilson, M.D.'s license?

NPPES lists Rhode Island license number MD03444, 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 Irving Thomas Gilson, M.D. prescribe under Medicare Part D?

In 2024, Irving Thomas Gilson, M.D. had 71 Medicare Part D claims; the average among cardiovascular disease physician prescribers was 3,078. 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.