NPPES file of Aug 9, 2026

Mario R. Nevarez Alonso, M.D.

Pediatrics Physician · San Juan, PR

Mario R. Nevarez Alonso, M.D. is a pediatrics physician with a practice address in San Juan, Puerto Rico, and NPI 1235100777, issued on Feb 1, 2006. Check the license (Puerto Rico 10845, as entered in NPPES) with the Puerto Rico board that licenses this profession; 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
1235100777
Name
Mario R. Nevarez Alonso
Credential
M.D.
Primary taxonomy
Pediatrics Physician 208000000X
License number
10845 PR
Self-reported in NPPES; status is on the state search
Practice location
252 Calle San Jorge, San Juan, PR 00912
Phone
(787) 726-0210
Enumerated
Feb 1, 2006
Record last updated
Dec 17, 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 252 Calle San Jorge

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

  1. Luis Clavell, M.D.Pediatric Hematology & Oncology Physician1487639845
  2. Alicia Fernandez-Sein, MDPediatric Critical Care Medicine Physician1518941970
  3. Ivan Figueroa-Otero, MDPediatric Surgery Physician1588666770
  4. Yazmin Garcia, M.D.Pediatrics Physician1336100668
  5. Ricardo Garcia-De JesusPediatric Critical Care Medicine Physician1124007513
  6. Nanette Gonzalez, M.D.Pediatrics Physician1346286408

Verify Mario R. Nevarez Alonso in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Puerto Rico board licenses this profession
    Search for license 10845
    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 Puerto Rico license search

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Industry payments in 2024: $70.83

1 payment: food and beverage; the largest payer was Merck Sharp & Dohme LLC. The 21,580 providers of this specialty with any payment received $842.05 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Mario Nevarez Alonso$70.83
  2. Specialty average$842.05

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

230 pediatrics physician records list a practice address in San Juan

They are 230 of the 8,960 NPPES records with a practice address in San Juan, and 808 pediatrics physician records in Puerto Rico.

Other pediatrics physician records in Puerto Rico

  1. Vivian Acebal Lopez, M.D.San Juan, PR1881810091
  2. Carlos Acevedo, MDVega Alta, PR1558402784
  3. Edgar Acevedo, M.D.San Juan, PR1235332958
  4. Hector Acevedo, MDCaguas, PR1730159153
  5. Sandra Acevedo, M.D.Bayamon, PR1235358904
  6. Sharon AcevedoPonce, PR1669841169
  7. Wida Acevedo, M.D.Guaynabo, PR1669450193
  8. Aileen Acevedo Ruiz, MDCaguas, PR1376190546
  9. Midnela Acevedo-Flores, M.D.San Juan, PR1497763668
  10. Luis Acosta, M.D.Vega Alta, PR1366785438

Common questions

What is Mario R. Nevarez Alonso, M.D.'s NPI number?

Mario R. Nevarez Alonso, M.D.'s National Provider Identifier (NPI) is 1235100777, issued on Feb 1, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Mario R. Nevarez Alonso, M.D. located?

The NPPES record lists a practice address at 252 Calle San Jorge, San Juan, PR, 00912. Phone: (787) 726-0210. Providers update this record themselves, so call before visiting.

How can I verify Mario R. Nevarez Alonso, M.D.'s license?

NPPES lists Puerto Rico license number 10845, as entered by the provider. Search the Puerto Rico 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.

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.