Registry data as of Aug 27, 2026

Michael Um, M.D.

Pediatrics Physician · Tamuning, GU

Michael Um, M.D. is a pediatrics physician with a practice address in Tamuning, Guam, and NPI 1255756664, issued on Feb 21, 2014. Check the license (Guam M1921, as entered in NPPES) 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, loaded Aug 27, 2026 · method · Verify with CMS →

NPPES recordas of Aug 27, 2026
1255756664
Name
Michael Um
Credential
M.D.
Primary taxonomy
Pediatrics Physician 208000000X
License numbers
M1921 GU
128711 CA
Self-reported in NPPES; status is on the state search
Practice location
850 Gov Camacho RD, Tamuning, GU 96913
Phone
(671) 647-2552
Enumerated
Feb 21, 2014
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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Verify Michael Um 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 M1921
    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.

10 pediatrics physician records list a Tamuning practice address

They are 10 of the 411 NPPES records with a Tamuning practice address, and 16 pediatrics physician records in Guam. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

Other pediatrics physician records in Guam

  1. Yolanda Carrera, MDHarmon, GU1982829016
  2. Amanda Del Rosario, M.D.Tamuning, GU1144653890
  3. James Demitrack, M.D.Agana Heights, GU1609843937
  4. Dina Domalanta-Villaluna, MDTamuning, GU1760539464
  5. Milliecor Fojas, M.D.Tamuning, GU1366683682
  6. Antonio Garcia, MDTamuning, GU1841480050
  7. John Garrido, MDOka Tamuning, GU1720135429
  8. Edgardo Hidalgo, MDTamuning, GU1619167871
  9. Gabriel Christopher Lapid, MDTamuning, GU1316436538
  10. Ma Gladys Linsangan, MDTumon, GU1255470969

Common questions

What is Michael Um, M.D.'s NPI number?

Michael Um, M.D.'s National Provider Identifier (NPI) is 1255756664, issued on Feb 21, 2014. An NPI identifies a provider in billing; it is not a license.

Where is Michael Um, M.D. located?

The NPPES record lists a practice address at 850 Gov Camacho RD, Tamuning, GU, 96913. Phone: (671) 647-2552. Providers update this record themselves, so call before visiting.

How can I verify Michael Um, M.D.'s license?

NPPES lists Guam license number M1921, 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), loaded Aug 27, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. An NPI identifies who bills; it is not a license.

Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 27, 2026.