NPPES file of Aug 9, 2026

Rafael Luis Marrero, M.D.

Adult Medicine Physician · Aibonito, PR

Rafael Luis Marrero, M.D. is an adult medicine physician with a practice address in Aibonito, Puerto Rico, and NPI 1518973411, issued on Jul 31, 2006. Check the license (Puerto Rico 10662, 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
1518973411
Name
Rafael Luis Marrero
Credential
M.D.
Primary taxonomy
Adult Medicine Physician 207QA0505X
License number
10662 PR
Self-reported in NPPES; status is on the state search
Practice location
Calle Pedro Rosario Num.20, Aibonito, PR 00705
Phone
(787) 735-1075
Enumerated
Jul 31, 2006
Record last updated
May 12, 2024
Fax
(787) 735-5572
Medicare enrollment
Enrolled (PECOS I20101025000689); accepts Medicare assignment
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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Verify Rafael Luis Marrero 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 10662
    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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4.6 times the Medicare Part D claims of the average adult medicine physician in 2024

13,877 Medicare Part D claims for 605 beneficiaries, against an average of 3,002 among the 1,307 providers of this specialty who prescribed in Part D. Brand-name drugs were 12% of claims. 202 claims were for opioids.

  1. Rafael Marrero13,877
  2. Specialty average3,002

Most prescribed

  1. Levothyroxine Sodium1,022 claims
  2. Gabapentin666 claims
  3. Simvastatin571 claims
  4. Alendronate Sodium431 claims
  5. Metformin Hcl413 claims
  6. Synthroid405 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.

Rafael Luis Marrero among 29 adult medicine physician records in Puerto Rico

Rafael Luis Marrero, M.D. is one of 29 adult medicine physician records with a practice address in Puerto Rico. 86% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 14% of them.

  • NPI issued2006 · 14% of these records are older, 41% newer
  • In a Medicare fileYes · 86% of these records are
  • In the CMS Doctors and Clinicians fileYes · 48% of these records are
  • Graduated1989 · median 1994 among the 14 with a school on file
  • Record last updated2024 · 59% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207QA0505X and a Puerto Rico practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Adult Medicine Physician providers in Puerto Rico

There are 29 adult medicine physician records in Puerto Rico.

The 8 adult medicine physician records with the nearest ZIP codes

  1. Hendryck Ruiz, M.D.Yauco, PR 006981790741437
  2. Julio Luis Cadiz Velazquez, M.DPonce, PR 007161184829913
  3. Grizelle Ramirez, MDVega Baja, PR 006931629118567
  4. Norma Marrero Figueroa, M.D.Vega Alta, PR 006921790829703
  5. Candido Diaz Diaz, M.D.Caguas, PR 007251083732085
  6. Evans Altenor, MDSan German, PR 006831407793078
  7. Kevin Caballero, MDMayaguez, PR 006821477145142
  8. Oreste Castellanos, M.D.Mayaguez, PR 006821013945286

Common questions

What is Rafael Luis Marrero, M.D.'s NPI number?

Rafael Luis Marrero, M.D.'s National Provider Identifier (NPI) is 1518973411, issued on Jul 31, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Rafael Luis Marrero, M.D. located?

The NPPES record lists a practice address at Calle Pedro Rosario Num.20, Aibonito, PR, 00705. Phone: (787) 735-1075. Providers update this record themselves, so call before visiting.

How can I verify Rafael Luis Marrero, M.D.'s license?

NPPES lists Puerto Rico license number 10662, as entered by the provider. Search the Puerto Rico board that licenses this profession; the NPPES record confirms identity only.

How much does Rafael Luis Marrero, M.D. prescribe under Medicare Part D?

In 2024, Rafael Luis Marrero, M.D. had 13,877 Medicare Part D claims for 605 beneficiaries; the average among adult medicine physician prescribers was 3,002. 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.