NPPES file of Aug 9, 2026

Gemma Miranda Mercado, M.D.

Family Medicine Physician · Tamuning, GU

Gemma Miranda Mercado, M.D. is a family medicine physician with a practice address in Tamuning, Guam, and NPI 1992844583, issued on Feb 6, 2007. Check the license with the Guam board that licenses this profession; the federal record below is the public data PlainDoctor holds for this provider.

Record from CMS NPPES, file of Aug 9, 2026 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1992844583
Name
Gemma Miranda Mercado
Credential
M.D.
Primary taxonomy
Family Medicine Physician 207Q00000X
License number
A95009 CA
Self-reported in NPPES; status is on the state search
Practice location
388 Ypao RD, Tamuning, GU 96913
Phone
(671) 646-8881
Enumerated
Feb 6, 2007
Record last updated
Apr 20, 2008 (not updated in 18 years: call before relying on the address or phone)
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 388 Ypao RD

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

  1. Arnie Lou Baker, NPFamily Nurse Practitioner1487132973
  2. Alison Chong, FNPFamily Nurse Practitioner1073111712
  3. Dae-Eil ChongPhysical Therapist1831474410
  4. Phyllis Collins, C.N.P.Nurse Practitioner1780629378
  5. Angeline David, DRPH, MHS, RDRegistered Dietitian1538586581
  6. Daniel Debardeleben, MDFamily Medicine Physician1598253379

Verify Gemma Miranda Mercado in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Guam board licenses this professionCheck 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

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Gemma Miranda Mercado among 46 family medicine physician records in Guam

Gemma Miranda Mercado, M.D. is one of 46 family medicine physician records with a practice address in Guam. 65% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does not. Its NPI, issued in 2007, is newer than 22% of them.

  • NPI issued2007 · 22% of these records are older, 59% newer
  • In a Medicare fileNo · 65% of these records are
  • In the CMS Doctors and Clinicians fileNo · 52% of these records are
  • Record last updated2008 · 37% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a Guam practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

22 family medicine physician records list a practice address in Tamuning

They are 22 of the 411 NPPES records with a practice address in Tamuning, and 46 family medicine physician records in Guam. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

The 8 family medicine physician records with the nearest ZIP codes

  1. Vincent Akimoto, MDUpper Tumon, GU 969131396871919
  2. Ugochukwu Akoma, M.D.Tamuning, GU 969131417157397
  3. Mary Beckett, MDTamuning, GU 969131669443024
  4. Jitka Lom, M.D.Tamuning, GU 969131790754679
  5. Shishin Miyagi, M.DTamuning, GU 969131912226713
  6. Julie Namm, M.D.Tamuning, GU 969131740515030
  7. Hoa Nguyen, MDUpper Tumon, GU 969131215086152
  8. Luan Nguyen, M.D.Tamuning, GU 969131124331160

Common questions

What is Gemma Miranda Mercado, M.D.'s NPI number?

Gemma Miranda Mercado, M.D.'s National Provider Identifier (NPI) is 1992844583, issued on Feb 6, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Gemma Miranda Mercado, M.D. located?

The NPPES record lists a practice address at 388 Ypao RD, Tamuning, GU, 96913. Phone: (671) 646-8881. Providers update this record themselves, so call before visiting.

How can I verify Gemma Miranda Mercado, M.D.'s license?

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. 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.