Maria I. Dueno, M.D.
Gastroenterology Physician · Bayamon, PR
Maria I. Dueno, M.D. is a gastroenterology physician with a practice address in Bayamon, Puerto Rico, and NPI 1295766855, issued on Jul 5, 2006. Check the license (Puerto Rico 7342, as entered in NPPES) with the Puerto Rico board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Maria I. Dueno
- Credential
- M.D.
- Primary taxonomy
- Gastroenterology Physician 207RG0100X
- License number
- 7342 PR
Self-reported in NPPES; status is on the state search - Practice location
- Bayamon Medical Plz, Bayamon, PR 00959
- Phone
- (787) 789-3238
- Enumerated
- Jul 5, 2006
- Record last updated
- Jul 9, 2007 (not updated in 19 years: call before relying on the address or phone)
- Fax
- (787) 789-7527
- Entity
- Type 1 · individual
8 nearest gastroenterology physician records → All 203 in Puerto Rico → Look up another NPI →
Also registered at Bayamon Medical Plz
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Maria I. Dueno in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Puerto Rico board licenses this profession
Search for license 7342Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
98% fewer Medicare Part D claims than the average gastroenterology physician in 2024
20 Medicare Part D claims, against an average of 811 among the 16,445 providers of this specialty who prescribed in Part D.
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.
Maria I. Dueno among 203 gastroenterology physician records in Puerto Rico
Maria I. Dueno, M.D. is one of 203 gastroenterology physician records with a practice address in Puerto Rico. 92% 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 20% of them.
- NPI issued2006 · 20% of these records are older, 51% newer
- In a Medicare fileYes · 92% of these records are
- In the CMS Doctors and Clinicians fileNo · 82% of these records are
- Record last updated2007 · 69% 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 Puerto Rico practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Gastroenterology Physician providers in Puerto Rico
There are 203 gastroenterology physician records in Puerto Rico.
All 203 in Puerto Rico → Every provider in Bayamon → Gastroenterology Physician nationwide →
The 8 gastroenterology physician records with the nearest ZIP codes
- Ricardo Arroyo, M.D.Bayamon, PR 009591750491056
- Veronica Beyley-Pagan, M.D.Bayamon, PR 009591790043503
- Viviana Blanco, MDBayamon, PR 009591356894398
- Leonardo Castro, M.D.Bayamon, PR 009591871641969
- Santiago Coste-Sibilia, M.D.Bayamon, PR 009591629413323
- Ramon Marrero, MDBayamon, PR 009591336252907
- Ivelisse Ramirez, MDBayamon, PR 009591083696629
- David RiveraBayamon, PR 009591851334262
Common questions
What is Maria I. Dueno, M.D.'s NPI number?
Maria I. Dueno, M.D.'s National Provider Identifier (NPI) is 1295766855, issued on Jul 5, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Maria I. Dueno, M.D. located?
The NPPES record lists a practice address at Bayamon Medical Plz, Bayamon, PR, 00959. Phone: (787) 789-3238. Providers update this record themselves, so call before visiting.
How can I verify Maria I. Dueno, M.D.'s license?
NPPES lists Puerto Rico license number 7342, as entered by the provider. Search the Puerto Rico board that licenses this profession; the NPPES record confirms identity only.
How much does Maria I. Dueno, M.D. prescribe under Medicare Part D?
In 2024, Maria I. Dueno, M.D. had 20 Medicare Part D claims; 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.