NPPES file of Aug 9, 2026

Vincent Duenas, D.O.

Internal Medicine Physician · Tamuning, GU

Vincent Duenas, D.O. is an internal medicine physician with a practice address in Tamuning, Guam, and NPI 1134430192, issued on Jun 24, 2010. Check the license (Guam DO-54, as entered in NPPES) with the Guam 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
1134430192
Name
Vincent Duenas
Credential
D.O.
Primary taxonomy
Internal Medicine Physician 207R00000X
License number
DO-54 GU
Self-reported in NPPES; status is on the state search
Practice location
280 Pale San Vitores RD Apt 104, Tamuning, GU 96913
Phone
(671) 689-4219
Enumerated
Jun 24, 2010
Record last updated
Sep 5, 2025
Medicare enrollment
Enrolled (PECOS I20131122001878); accepts Medicare assignment
Medical or professional school
Touro Un College Of Osteopathic Medicine, Vallejo, 2010
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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Verify Vincent Duenas in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Guam board licenses this profession
    Search for license DO-54
    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
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49% fewer Medicare Part D claims than the average internal medicine physician in 2024

1,628 Medicare Part D claims for 62 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 7% of claims. 33 claims were for opioids.

  1. Vincent Duenas1,628
  2. Specialty average3,176

Most prescribed

  1. Atorvastatin Calcium141 claims
  2. Lisinopril83 claims
  3. Amlodipine Besylate82 claims
  4. Losartan Potassium76 claims
  5. Metformin Hcl69 claims
  6. Nifedipine Er65 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.

Bills Medicare through one group practice

  1. Takecare Insurance Company IncTamuning, GU

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

Vincent Duenas among 24 internal medicine physician records in Guam

Vincent Duenas, D.O. is one of 24 internal medicine physician records with a practice address in Guam. 75% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2010, is newer than 67% of them.

  • NPI issued2010 · 67% of these records are older, 29% newer
  • In a Medicare fileYes · 75% of these records are
  • In the CMS Doctors and Clinicians fileYes · 67% of these records are
  • Graduated2010 · median 1993 among the 16 with a school on file
  • Record last updated2025 · 50% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a Guam practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

12 internal medicine physician records list a practice address in Tamuning

They are 12 of the 411 NPPES records with a practice address in Tamuning, and 24 internal medicine physician records in Guam.

The 8 internal medicine physician records with the nearest ZIP codes

  1. Leopoldo Arcilla, MDMangilao, GU 969131144364753
  2. Ellen Bez, MDTamuning, GU 969131649484197
  3. Young Chang, MDTamuning, GU 969131639218290
  4. Alix Chenet, MDOka Tamuning, GU 969131669530507
  5. Vincent Duenas, MDTamuning, GU 969131831244888
  6. Pablo Guzman, M.D.Tamuning, GU 969131023081304
  7. Johnny Lim, M.D.Tamuning, GU 969131265494868
  8. Doris Lim, M.D.Tamuning, GU 969131295790178

Common questions

What is Vincent Duenas, D.O.'s NPI number?

Vincent Duenas, D.O.'s National Provider Identifier (NPI) is 1134430192, issued on Jun 24, 2010. An NPI identifies a provider in billing; it is not a license.

Where is Vincent Duenas, D.O. located?

The NPPES record lists a practice address at 280 Pale San Vitores RD Apt 104, Tamuning, GU, 96913. Phone: (671) 689-4219. Providers update this record themselves, so call before visiting.

How can I verify Vincent Duenas, D.O.'s license?

NPPES lists Guam license number DO-54, as entered by the provider. Search the Guam board that licenses this profession; the NPPES record confirms identity only.

How much does Vincent Duenas, D.O. prescribe under Medicare Part D?

In 2024, Vincent Duenas, D.O. had 1,628 Medicare Part D claims for 62 beneficiaries; the average among internal medicine physician prescribers was 3,176. 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.