NPPES file of Aug 9, 2026

Gary Douglas Light, D.M.D.

General Practice Dentistry · Providence, RI

Gary Douglas Light, D.M.D. is a general practice dentistry with a practice address in Providence, Rhode Island, and NPI 1578637278, issued on Nov 17, 2006. Check the license (Rhode Island DEN2216, as entered in NPPES) with the Rhode Island board that licenses this profession; 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
1578637278
Name
Gary Douglas Light
Credential
D.M.D.
Primary taxonomy
General Practice Dentistry 1223G0001X
License number
DEN2216 RI
Self-reported in NPPES; status is on the state search
Practice location
189 Waterman St, Providence, RI 02906
Phone
(401) 351-0072
Enumerated
Nov 17, 2006
Record last updated
Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
Fax
(401) 351-0055
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 189 Waterman St

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

  1. Jason Conforti, D.M.D.Dentist1396975876

Verify Gary Douglas Light in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Rhode Island board licenses this profession
    Search for license DEN2216
    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
Find 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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71% fewer Medicare Part D claims than the average general practice dentistry in 2024

24 Medicare Part D claims for 19 beneficiaries, against an average of 83 among the 70,290 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims.

  1. Gary Light24
  2. Specialty average83

Most prescribed

  1. Amoxicillin11 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.

Gary Douglas Light among 351 general practice dentistry records in Rhode Island

Gary Douglas Light, D.M.D. is one of 351 general practice dentistry records with a practice address in Rhode Island. 62% 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 4% of them.

  • NPI issued2006 · 4% of these records are older, 60% newer
  • In a Medicare fileYes · 62% of these records are
  • In the CMS Doctors and Clinicians fileNo · 0% of these records are
  • Record last updated2007 · 73% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 1223G0001X and a Rhode Island practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

General Practice Dentistry providers in Rhode Island

There are 351 general practice dentistry records in Rhode Island.

The 8 general practice dentistry records with the nearest ZIP codes

  1. Jean Arthur, DDSProvidence, RI 029061841408143
  2. Carl Cotoia, D.D.S.Providence, RI 029061578609855
  3. Thomas Depetrillo, DMDProvidence, RI 029061265549091
  4. Robert Ducoff, D.M.D.Providence, RI 029061972699247
  5. Martin Hanoian, DMDProvidence, RI 029061457496465
  6. Lena Karkalas, DDSProvidence, RI 029061982613733
  7. Matthew Pazienza, DMDProvidence, RI 029061851090187
  8. Charles Riotto, D.M.D.Providence, RI 029061811939481

Common questions

What is Gary Douglas Light, D.M.D.'s NPI number?

Gary Douglas Light, D.M.D.'s National Provider Identifier (NPI) is 1578637278, issued on Nov 17, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Gary Douglas Light, D.M.D. located?

The NPPES record lists a practice address at 189 Waterman St, Providence, RI, 02906. Phone: (401) 351-0072. Providers update this record themselves, so call before visiting.

How can I verify Gary Douglas Light, D.M.D.'s license?

NPPES lists Rhode Island license number DEN2216, as entered by the provider. Search the Rhode Island board that licenses this profession; the NPPES record confirms identity only.

How much does Gary Douglas Light, D.M.D. prescribe under Medicare Part D?

In 2024, Gary Douglas Light, D.M.D. had 24 Medicare Part D claims for 19 beneficiaries; the average among general practice dentistry prescribers was 83. 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.