NPPES file of Aug 9, 2026

Maylein C. Juan Rivera, PHARMD

Pharmacist · Toa Baja, PR

Maylein C. Juan Rivera, PHARMD is a pharmacist with a practice address in Toa Baja, Puerto Rico, and NPI 1194504258, issued on Sep 27, 2023. Check the license (Puerto Rico 8146, 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
1194504258
Name
Maylein C. Juan Rivera
Credential
PHARMD
Primary taxonomy
Pharmacist 183500000X
License numbers
8146 PR
PS66424 FL
Self-reported in NPPES; status is on the state search
Practice location
Carr. 863 KM 0.6 BO. Pajaros BO. Candelaria, Toa Baja, PR 00949
Phone
(787) 620-9611
Enumerated
Sep 27, 2023
Record last updated
May 23, 2024
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.
Download card Updates feed

8 nearest pharmacist records → All 3,180 in Puerto Rico → Look up another NPI →

Verify Maylein C. Juan Rivera 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 8146    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

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

Is this page about you? You can ask us to correct, restrict or remove it: how.

91% fewer Medicare Part D claims than the average pharmacist in 2024

11 Medicare Part D claims for 11 beneficiaries, against an average of 119 among the 28,524 providers of this specialty who prescribed in Part D.

  1. Maylein Juan Rivera11
  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.

Maylein C. Juan Rivera among 3,180 pharmacist records in Puerto Rico

Maylein C. Juan Rivera, PHARMD 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 2023, is newer than 84% of them.

  • NPI issued2023 · 84% of these records are older, 11% newer
  • In a Medicare fileYes · 19% of these records are
  • In the CMS Doctors and Clinicians fileNo · 0% of these records are
  • Record last updated2024 · 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).

59 pharmacist records list a practice address in Toa Baja

They are 59 of the 446 NPPES records with a practice address in Toa Baja, and 3,180 pharmacist records in Puerto Rico.

All 3,180 in Puerto Rico → Every provider in Toa Baja → Pharmacist nationwide →

The 8 pharmacist records with the nearest ZIP codes

  1. Mayra BermudezToa Baja, PR 009491245441468
  2. Vivian Castro, PHARMACISTToa Baja, PR 009491962611491
  3. Juan DiazToa Baja, PR 009491275727844
  4. Oscar MercadoToa Baja, PR 009491013128198
  5. Hilda Milbes, PHARM.D.Toa Baja, PR 009491831309525
  6. Agnes Molina, RPHToa Baja, PR 009491598949448
  7. Nilsa NarvaezToa Baja, PR 009491407986722
  8. Karla Perez, PHARMACISTToa Baja, PR 009491215108964

Common questions

What is Maylein C. Juan Rivera, PHARMD's NPI number?

Maylein C. Juan Rivera, PHARMD's National Provider Identifier (NPI) is 1194504258, issued on Sep 27, 2023. An NPI identifies a provider in billing; it is not a license.

Where is Maylein C. Juan Rivera, PHARMD located?

The NPPES record lists a practice address at Carr. 863 KM 0.6 BO. Pajaros BO. Candelaria, Toa Baja, PR, 00949. Phone: (787) 620-9611. Providers update this record themselves, so call before visiting.

How can I verify Maylein C. Juan Rivera, PHARMD's license?

NPPES lists Puerto Rico license number 8146, as entered by the provider. Search the Puerto Rico board that licenses this profession; the NPPES record confirms identity only.

How much does Maylein C. Juan Rivera, PHARMD prescribe under Medicare Part D?

In 2024, Maylein C. Juan Rivera, PHARMD had 11 Medicare Part D claims for 11 beneficiaries; 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.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

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.