Alexandra Herrero Leon Guerrero, M.D.
Surgery Physician · Tamuning, GU
Alexandra Herrero Leon Guerrero, M.D. is a surgery physician with a practice address in Tamuning, Guam, and NPI 1780020586, issued on May 20, 2013. Check the license (Guam M-2170, as entered in NPPES) with the Guam board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Alexandra Herrero Leon Guerrero
- Credential
- M.D.
- Primary taxonomy
- Surgery Physician 208600000X
- License number
- M-2170 GU
Self-reported in NPPES; status is on the state search - Practice location
- 280 Pale San Vitores RD, Tamuning, GU 96913
- Phone
- (671) 647-4542
- Enumerated
- May 20, 2013
- Record last updated
- Aug 27, 2019 (not updated in 7 years: call before relying on the address or phone)
- Fax
- (671) 647-4558
- Medicare enrollment
- Enrolled (PECOS I20200110001936); accepts Medicare assignment
- Medical or professional school
- New York University School Of Medicine, 2013
- Entity
- Type 1 · individual
8 nearest surgery physician records → All 12 in Guam → Look up another NPI →
Also registered at 280 Pale San Vitores RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Alexandra Herrero Leon Guerrero in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Guam board licenses this profession
Search for license M-2170Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
67% fewer Medicare Part D claims than the average surgery physician in 2024
48 Medicare Part D claims for 24 beneficiaries, against an average of 147 among the 20,115 providers of this specialty who prescribed in Part D.
Most prescribed
- Famotidine12 claims
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.
Industry payments in 2024: $111.33
2 payments; by number, the most common kind was food and beverage; the largest payer was Tempus AI, Inc. The 17,103 providers of this specialty with any payment received $3,513.80 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through 2 group practices
- Guam Healthcare Development IncorporatedDededo, GU
- Hafa Specialist Group LLPTamuning, GU
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Alexandra Herrero Leon Guerrero among 12 surgery physician records in Guam
Alexandra Herrero Leon Guerrero, M.D. is one of 12 surgery physician records with a practice address in Guam. 75% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2013, is newer than 83% of them.
- NPI issued2013 · 83% of these records are older, 8% newer
- In a Medicare fileYes · 75% of these records are
- In the CMS Doctors and Clinicians fileYes · 58% of these records are
- Record last updated2019 · 58% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208600000X and a Guam practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
8 surgery physician records list a practice address in Tamuning
They are 8 of the 411 NPPES records with a practice address in Tamuning, and 12 surgery physician records in Guam.
All 12 in Guam → Every provider in Tamuning → Surgery Physician nationwide →
The 8 surgery physician records with the nearest ZIP codes
- Michael Cruz, MDTamuning, GU 969131164552022
- Christian Eusebio, M.D.Tamuning, GU 969131457643025
- Peter Kh Go, M.D.Tamuning, GU 969131932202298
- Ronald Kobayashi, MDTamuning, GU 969131104975689
- Kia Rahmani, M.D.Tamuning, GU 969131740259613
- Allen Shepherd, MDTamuning, GU 969131942471628
- Stephanie Bedzis, M.D.Agana, GU 969151538395223
- Jennifer Cannon, MDAgana Heights, GU 969101942863154
Common questions
What is Alexandra Herrero Leon Guerrero, M.D.'s NPI number?
Alexandra Herrero Leon Guerrero, M.D.'s National Provider Identifier (NPI) is 1780020586, issued on May 20, 2013. An NPI identifies a provider in billing; it is not a license.
Where is Alexandra Herrero Leon Guerrero, M.D. located?
The NPPES record lists a practice address at 280 Pale San Vitores RD, Tamuning, GU, 96913. Phone: (671) 647-4542. Providers update this record themselves, so call before visiting.
How can I verify Alexandra Herrero Leon Guerrero, M.D.'s license?
NPPES lists Guam license number M-2170, as entered by the provider. Search the Guam board that licenses this profession; the NPPES record confirms identity only.
How much does Alexandra Herrero Leon Guerrero, M.D. prescribe under Medicare Part D?
In 2024, Alexandra Herrero Leon Guerrero, M.D. had 48 Medicare Part D claims for 24 beneficiaries; the average among surgery physician prescribers was 147. 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.