NPPES file of Aug 9, 2026

Glen Guillermo, MD

Emergency Medicine Physician · Las Vegas, NV

Glen Guillermo, MD is an emergency medicine physician with a practice address in Las Vegas, Nevada, and NPI 1275673162, issued on Feb 8, 2007. Check the license (Nevada 10238, as entered in NPPES) on the Nevada State Board of Medical Examiners; 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
1275673162
Name
Glen Guillermo
Credential
MD
Primary taxonomy
Emergency Medicine Physician 207P00000X
License number
10238 NV
Self-reported in NPPES; status is on the state search
Practice location
1800 W Charleston Blvd, Las Vegas, NV 89102
Phone
(023) 831-9587
Enumerated
Feb 8, 2007
Record last updated
Oct 29, 2024
Medicaid ID
2018842 NV
Medicare enrollment
Enrolled (PECOS I20090423000542); accepts Medicare assignment
Medical or professional school
University Of Nevada School Of Medicine, 1998
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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Also registered at 1800 W Charleston Blvd

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

  1. Natalia AdamskaStudent in an Organized Health Care Education/Training Program1750961405
  2. Gabriela Aguirre, RDRegistered Dietitian1033495536
  3. Shamoona Ahmed, M.D.Internal Medicine Physician1073774808
  4. Salvatore Aiello, MD, PHDEmergency Medicine Physician1780385716
  5. Abdussalam Alburki, M.D.Internal Medicine Physician1922077569
  6. Luzviminda Alexander, APRNNurse Practitioner1841632437

Verify Glen Guillermo in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersNevada State Board of Medical Examiners
    Search for license 10238
    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
Open the Nevada license search

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93% fewer Medicare Part D claims than the average emergency medicine physician in 2024

16 Medicare Part D claims for 12 beneficiaries, against an average of 226 among the 54,106 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims.

  1. Glen Guillermo16
  2. Specialty average226

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. University Medical Center OF Southern NevadaLas Vegas, NV

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

Glen Guillermo among 575 emergency medicine physician records in Nevada

Glen Guillermo, MD is one of 575 emergency medicine physician records with a practice address in Nevada. 83% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 36% of them.

  • NPI issued2007 · 36% of these records are older, 57% newer
  • In a Medicare fileYes · 83% of these records are
  • In the CMS Doctors and Clinicians fileYes · 64% of these records are
  • Graduated1998 · median 2014 among the 366 with a school on file
  • Record last updated2024 · 45% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207P00000X and a Nevada practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Emergency Medicine Physician providers in Nevada

There are 575 emergency medicine physician records in Nevada.

The 8 emergency medicine physician records with the nearest ZIP codes

  1. Ross Berkeley, MDLas Vegas, NV 891021669564225
  2. Charles Bloom, D.O.Las Vegas, NV 891021548202526
  3. Jefferson Bracey, DOLas Vegas, NV 891021811093669
  4. Mitzi Dillon, M.D.Las Vegas, NV 891021316951155
  5. Allen Marino, MDLas Vegas, NV 891021841390168
  6. Thomas Matz, MDLas Vegas, NV 891021902906217
  7. John McCourt, MDLas Vegas, NV 891021265504021
  8. David Obert, DOLas Vegas, NV 891021487669263

Common questions

What is Glen Guillermo, MD's NPI number?

Glen Guillermo, MD's National Provider Identifier (NPI) is 1275673162, issued on Feb 8, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Glen Guillermo, MD located?

The NPPES record lists a practice address at 1800 W Charleston Blvd, Las Vegas, NV, 89102. Phone: (023) 831-9587. Providers update this record themselves, so call before visiting.

How can I verify Glen Guillermo, MD's license?

NPPES lists Nevada license number 10238, as entered by the provider. Search the Nevada State Board of Medical Examiners at https://medboard.nv.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Glen Guillermo, MD prescribe under Medicare Part D?

In 2024, Glen Guillermo, MD had 16 Medicare Part D claims for 12 beneficiaries; the average among emergency medicine physician prescribers was 226. 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.