NPPES file of Aug 9, 2026

William P. Vercio, M.D.

Specialist · Tamuning, GU

William P. Vercio, M.D. is a specialist with a practice address in Tamuning, Guam, and NPI 1962658922, issued on Aug 11, 2008. Check the license (Guam M-973, 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 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1962658922
Name
William P. Vercio
Credential
M.D.
Primary taxonomy
Specialist 174400000X
License number
M-973 GU
Self-reported in NPPES; status is on the state search
Practice location
548 S Marine Corps Dr, Tamuning, GU 96913
Phone
(671) 646-5824
Enumerated
Aug 11, 2008
Record last updated
Aug 11, 2008 (not updated in 18 years: call before relying on the address or phone)
Fax
(671) 647-3546
Medicare enrollment
Enrolled (PECOS I20150810000135); accepts Medicare assignment
Medical or professional school
Loma Linda University School Of Medicine, 1981
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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8 nearest specialist records → All 10 in Guam → Look up another NPI →

Also registered at 548 S Marine Corps Dr

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

  1. Carmencita AtaligHome Health Registered Nurse1649820770
  2. Dean Baugh, D.D.S.Endodontics1902175334
  3. David Bero, D.D.S.Dentist1245508670
  4. Norhea Cando, RNHome Health Registered Nurse1023648896
  5. Thomas Caruso, R.PH.Pharmacist1154514412
  6. Sarah Clegg, D.D.SGeneral Practice Dentistry1457764417

Verify William P. Vercio 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 M-973    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 Guam 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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Bills Medicare through one group practice

  1. Guam Memorial HospitalTamuning, GU

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

William P. Vercio among 10 specialist records in Guam

William P. Vercio, M.D. is one of 10 specialist records with a practice address in Guam. 60% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2008, is newer than 90% of them.

  • NPI issued2008 · 90% of these records are older, 0% newer
  • In a Medicare fileYes · 60% of these records are
  • In the CMS Doctors and Clinicians fileYes · 60% of these records are
  • Record last updated2008 · 60% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 174400000X and a Guam practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

10 specialist records list a practice address in Tamuning

They are 10 of the 411 NPPES records with a practice address in Tamuning, and 10 specialist records in Guam.

All 10 in Guam → Every provider in Tamuning → Specialist nationwide →

The 8 specialist records with the nearest ZIP codes

  1. Maria Blancaflor, M.D.Tamuning, GU 969131346316825
  2. Fernan De Guzman, M.D.Tamuning, GU 969131669434254
  3. James Fleming, M.D.Tamuning, GU 969131336100601
  4. Geoffrey Galgo, DOCTOR OF MEDICINETamuning, GU 969131437379575
  5. Robert Leon Guerrero, M.D.Tamuning, GU 969131972564219
  6. Edgar Magcalas, M.D.Tamuning, GU 969131578525168
  7. Faraz Ouhadi, M.D.Tamuning, GU 969131063517639
  8. Sherif Philips, MDTamuning, GU 969131487731733

Common questions

What is William P. Vercio, M.D.'s NPI number?

William P. Vercio, M.D.'s National Provider Identifier (NPI) is 1962658922, issued on Aug 11, 2008. An NPI identifies a provider in billing; it is not a license.

Where is William P. Vercio, M.D. located?

The NPPES record lists a practice address at 548 S Marine Corps Dr, Tamuning, GU, 96913. Phone: (671) 646-5824. Providers update this record themselves, so call before visiting.

How can I verify William P. Vercio, M.D.'s license?

NPPES lists Guam license number M-973, as entered by the provider. Search the Guam board that licenses this profession; the NPPES record confirms identity 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.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

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.