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VINCENT A DUENAS MD
NPI 1831244888
Internal Medicine in Tamuning, GU

Active since January 23, 2007PECOS EnrolledAccepts Medicare Assignment
100/100
CMS Quality Rating
851 GOVERNOR CARLOS CAMACHO ROAD, TAMUNING, GU 96913(671) 300-0840(671) 647-0832 Get Directions Write a Review

NPPES record last updated: March 7, 2023. Verified against the NPPES registry weekly; last sync: November 01, 2026.

Record update history: Mar 7, 2023, Feb 7, 2017 (2 updates tracked since 2017).

About Vincent A Duenas Md NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

VINCENT A DUENAS MD (NPI 1831244888) is an individual internal medicine provider in Tamuning, Guam, licensed in Guam (M638) and active in the NPI registry since January 2007. He is enrolled in Medicare PECOS and is a graduate of Saint Louis University School Of Medicine (1976).

NPPES Registry Identity

NPI1831244888
Entity TypeIndividualMale
Primary Taxonomy207R00000X
Provider Legal NameVINCENT A DUENASCredential: MD
Location Address851 GOVERNOR CARLOS CAMACHO ROADTamuning, GU 96913-3153
Mailing Address437 South Sabana DriveBarrigada Heights, GU 96913-0000 · (671) 637-0727 · Fax (671) 647-0832
Phone(671) 300-0840
Fax(671) 647-0832
Sole ProprietorNo
Medical School CMSSaint Louis University School Of MedicineGraduated 1976
Enumeration DateJanuary 23, 2007
Last NPPES UpdateMarch 7, 20232 updates tracked since enumeration
✔ NPI 1831244888 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
License✔ Licensed in GU · M638
Definition
A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.

Other Identifiers 2

Medicaid611GU
OtherM638GU · Guam Board Of Medical Examiners Licensure

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Vincent A Duenas Md is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID6901816420
PECOS Enrollment IDI20120329000219
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignments

2

Medicare enrollment records show Vincent Duenas reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Guam Memorial Hospital
General Acute Care Hospital
850 GOVERNOR CARLOS CAMACHO ROAD
Oka Tamuning, GU 96913
  • Reassigned Medicare billing, Guam enrollment
  • 320 clinicians in this Medicare group
NPI 1366519027 (671) 647-2937
The Doctors Clinic
Family Medicine
851 GOVERNOR CARLOS CAMACHO ROAD
Tamuning, GU 96913
  • Reassigned Medicare billing, Guam enrollment
  • 3 clinicians in this Medicare group
NPI 1467503433 (671) 648-2711

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 96913 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$136.68 typical visit price
range $60.53 – $180.05
Typical copayment $34.17 (range $15.13 – $45.01)
Most-billed visit code 99204
Established Patient
$105.65 typical visit price
range $20.09 – $147.56
Typical copayment $26.41 (range $5.02 – $36.89)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

100/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored as part of a group practice
Quality92.62
Improvement Activities40
Cost100

Reported Quality Measures

e-Prescribing
At least one permissible prescription written by the MIPS eligible clinician is queried for a drug formulary and transmitted electronically using certified EHR technology.
96%939 patients4/55-star benchmark: 100%
Medication Reconciliation
The MIPS eligible clinician performs medication reconciliation for at least one transition of care in which the patient is transitioned into the care of the MIPS eligible clinician.
100%28 patients5/55-star benchmark: 100%
Patient-Specific Education
The MIPS eligible clinician must use clinically relevant information from CEHRT to identify patient-specific educational resources and provide access to those materials to at least one unique patient seen by the MIPS eligible clinician.
28%648 patients2/55-star benchmark: 99%
Provide Patient Access
At least one patient seen by the MIPS eligible clinician during the performance period is provided timely access to view online, download, and transmit to a third party their health information subject to the MIPS eligible clinician's discretion to withhold…
65%648 patients3/55-star benchmark: 100%
Secure Messaging
For at least one unique patient seen by the MIPS eligible clinician during the performance period, a secure message was sent using the electronic messaging function of CEHRT to the patient (or the patient-authorized representative), or in response to a secure…
31%648 patients3/55-star benchmark: 59%
Providers report different measures because they deliver different services; reporting more or less information is not a reflection of quality. Star ratings appear only where CMS assigned them.

Referred Medical Equipment & Supplies CMS DME claims 3

Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.

Blood glucose test or reagent strips for home blood glucose monitor, per 50 strips A4253
DME-Other DME · category DE017N
2 suppliers65 claims125 services$5.73 avg. paid by Medicare
Lancets, per box of 100 A4259
DME-Medical/Surgical Supplies · category DA000N
2 suppliers38 claims40 services$1.08 avg. paid by Medicare
Standard wheelchair K0001
DME-Wheelchairs · category DD000N
3 suppliers33 claims33 services$28.45 avg. paid by Medicare
Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

Other Providers at the Same Location NPPES 2

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

THE DOCTORS CLINIC
Family Medicine
851 GOVERNOR CARLOS CAMACHO ROAD
TAMUNING, GU 96913
Guam (671) 648-2711
JOHN RAY TAITANO MD
Internal Medicine
851 GOVERNOR CARLOS CAMACHO ROAD
TAMUNING, GU 96913
Guam (671) 300-0840

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Vincent Duenas's NPI number?

The NPI number for Vincent Duenas is 1831244888. It was assigned to this individual provider in the NPPES registry on January 23, 2007.

Where is Vincent Duenas located?

Vincent Duenas practices at 851 Governor Carlos Camacho Road, Tamuning, GU 96913. The listed phone number is (671) 300-0840.

What is Vincent Duenas's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

Is Vincent Duenas enrolled in Medicare?

Yes. Vincent Duenas is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

Which organizations bill Medicare for Vincent Duenas's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Vincent Duenas reassigns Medicare benefits to 2 organizations: Guam Memorial Hospital (Oka Tamuning, GU) and The Doctors Clinic (Tamuning, GU). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Vincent Duenas's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for Vincent Duenas was last updated on March 7, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.