NPPES file of Aug 9, 2026

Marilyn Arzuaga-Reyes

Pharmacist · Las Piedras, PR

Marilyn Arzuaga-Reyes is a pharmacist with a practice address in Las Piedras, Puerto Rico, and NPI 1831483742, issued on Jun 8, 2011. Check the license (Puerto Rico 4747, 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
1831483742
Name
Marilyn Arzuaga-Reyes
Primary taxonomy
Pharmacist 183500000X
License number
4747 PR
Self-reported in NPPES; status is on the state search
Practice location
St 183 Int 917, Las Piedras, PR 00771
Phone
(787) 733-8916
Enumerated
Jun 8, 2011
Record last updated
Jun 8, 2011 (not updated in 15 years: call before relying on the address or phone)
Fax
(787) 733-5741
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 Marilyn Arzuaga-Reyes 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 4747
    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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91% fewer Medicare Part D claims than the average pharmacist in 2024

11 Medicare Part D claims, against an average of 119 among the 28,524 providers of this specialty who prescribed in Part D. Brand-name drugs were 100% of claims.

  1. Marilyn Arzuaga-Reyes11
  2. Specialty average119

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.

Marilyn Arzuaga-Reyes among 3,180 pharmacist records in Puerto Rico

Marilyn Arzuaga-Reyes is one of 3,180 pharmacist records with a practice address in Puerto Rico. 19% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2011, is newer than 37% of them.

  • NPI issued2011 · 37% of these records are older, 52% newer
  • In a Medicare fileYes · 19% of these records are
  • In the CMS Doctors and Clinicians fileNo · 0% of these records are
  • Record last updated2011 · 74% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 183500000X and a Puerto Rico practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

20 pharmacist records list a practice address in Las Piedras

They are 20 of the 208 NPPES records with a practice address in Las Piedras, and 3,180 pharmacist records in Puerto Rico.

The 8 pharmacist records with the nearest ZIP codes

  1. Maritza Del MoralLas Piedras, PR 007711043341381
  2. Fermin Garcia Plaza, RPHLas Piedras, PR 007711356636021
  3. Maria Guisao, PHARMACISTLas Piedras, PR 007711043504558
  4. Amarilis Laboy, PHARM DHumacao, PR 007711578788972
  5. Evelyn Lopez-Morales, PHARMACISTLas Piedras, PR 007711316088362
  6. Raquel Lozada, PHARMACISTLas Piedras, PR 007711710005848
  7. Sandra MartinezLas Piedras, PR 007711265652507
  8. Iris Morant, RPHLas Piedras, PR 007711447622501

Common questions

What is Marilyn Arzuaga-Reyes's NPI number?

Marilyn Arzuaga-Reyes's National Provider Identifier (NPI) is 1831483742, issued on Jun 8, 2011. An NPI identifies a provider in billing; it is not a license.

Where is Marilyn Arzuaga-Reyes located?

The NPPES record lists a practice address at St 183 Int 917, Las Piedras, PR, 00771. Phone: (787) 733-8916. Providers update this record themselves, so call before visiting.

How can I verify Marilyn Arzuaga-Reyes's license?

NPPES lists Puerto Rico license number 4747, as entered by the provider. Search the Puerto Rico board that licenses this profession; the NPPES record confirms identity only.

How much does Marilyn Arzuaga-Reyes prescribe under Medicare Part D?

In 2024, Marilyn Arzuaga-Reyes had 11 Medicare Part D claims; the average among pharmacist prescribers was 119. 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.