NPPES file of Aug 9, 2026

Maritza Melendez Nieves, MD

Specialist · Fajardo, PR

Maritza Melendez Nieves, MD is a specialist with a practice address in Fajardo, Puerto Rico, and NPI 1295775856, issued on Jun 8, 2006. Check the license (Puerto Rico 10798, 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
1295775856
Name
Maritza Melendez Nieves
Credential
MD
Primary taxonomy
Specialist 174400000X
License number
10798 PR
Self-reported in NPPES; status is on the state search
Practice location
302 Ave General Valero, Fajardo, PR 00738
Phone
(787) 801-6341
Enumerated
Jun 8, 2006
Record last updated
Jul 13, 2026
Fax
(787) 355-6626
Medicare enrollment
Enrolled (PECOS I20121026000511); accepts Medicare assignment
Medical or professional school
University Of Puerto Rico School Of Medicine, 1989
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 Maritza Melendez Nieves 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 10798
    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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7.7 times the Medicare Part D claims of the average specialist in 2024

10,587 Medicare Part D claims for 385 beneficiaries, against an average of 1,380 among the 8,233 providers of this specialty who prescribed in Part D. Brand-name drugs were 24% of claims. 89 claims were for opioids.

  1. Maritza Melendez Nieves10,587
  2. Specialty average1,380

Most prescribed

  1. Losartan Potassium628 claims
  2. Farxiga617 claims
  3. Rosuvastatin Calcium523 claims
  4. Atorvastatin Calcium496 claims
  5. Synthroid466 claims
  6. Famotidine341 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: $765.19

14 payments; by number, the most common kind was food and beverage; the largest payer was AstraZeneca Pharmaceuticals LP. The 5,844 providers of this specialty with any payment received $4,760.79 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Maritza Melendez Nieves$765.19
  2. Specialty average$4,760.79

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

Maritza Melendez Nieves among 574 specialist records in Puerto Rico

Maritza Melendez Nieves, MD is one of 574 specialist records with a practice address in Puerto Rico. 54% 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 17% of them.

  • NPI issued2006 · 17% of these records are older, 37% newer
  • In a Medicare fileYes · 54% of these records are
  • In the CMS Doctors and Clinicians fileYes · 26% of these records are
  • Graduated1989 · median 1985 among the 147 with a school on file
  • Record last updated2026 · 79% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 174400000X and a Puerto Rico practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

5 specialist records list a practice address in Fajardo

They are 5 of the 346 NPPES records with a practice address in Fajardo, and 574 specialist records in Puerto Rico.

The 8 specialist records with the nearest ZIP codes

  1. Jose Alvarez-Ruiz, MDFajardo, PR 007381932112257
  2. Sara Lopez, MDFajardo, PR 007381003931726
  3. Lydia Lugo, MDFajardo, PR 007381760688006
  4. Esther Rivera, OTLFajardo, PR 007381891883351
  5. Frank Acevedo, M.D.Cayey, PR 007371780659631
  6. Nelida Anderson, R.H.I.A.Cayey, PR 007371184843344
  7. Luis Colon, M.D.Cidra, PR 007391366647141
  8. Marie Cuilan, PHYSICAL THERAPYCidra, PR 007391215257167

Common questions

What is Maritza Melendez Nieves, MD's NPI number?

Maritza Melendez Nieves, MD's National Provider Identifier (NPI) is 1295775856, issued on Jun 8, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Maritza Melendez Nieves, MD located?

The NPPES record lists a practice address at 302 Ave General Valero, Fajardo, PR, 00738. Phone: (787) 801-6341. Providers update this record themselves, so call before visiting.

How can I verify Maritza Melendez Nieves, MD's license?

NPPES lists Puerto Rico license number 10798, as entered by the provider. Search the Puerto Rico board that licenses this profession; the NPPES record confirms identity only.

How much does Maritza Melendez Nieves, MD prescribe under Medicare Part D?

In 2024, Maritza Melendez Nieves, MD had 10,587 Medicare Part D claims for 385 beneficiaries; the average among specialist prescribers was 1,380. 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.