NPPES file of Aug 9, 2026

Monica Mendez Ayala, M.D.

Specialist · Manati, PR

Monica Mendez Ayala, M.D. is a specialist with a practice address in Manati, Puerto Rico, and NPI 1477580983, issued on Jun 28, 2006. Check the license (Puerto Rico 13157, 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
1477580983
Name
Monica Mendez Ayala
Credential
M.D.
Primary taxonomy
Specialist 174400000X
License number
13157 PR
Self-reported in NPPES; status is on the state search
Practice location
605 Carr 2 # KM47.7, Manati, PR 00674
Phone
(787) 621-3400
Enumerated
Jun 28, 2006
Record last updated
Mar 20, 2015 (not updated in 11 years: call before relying on the address or phone)
Fax
(787) 621-3401
Medicare enrollment
Enrolled (PECOS I20040908000928); accepts Medicare assignment
Medical or professional school
University Central Del Caribe Escuela De Medicina, 1997
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 Monica Mendez Ayala 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 13157
    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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88% more Medicare Part D claims than the average specialist in 2024

2,600 Medicare Part D claims for 420 beneficiaries, against an average of 1,380 among the 8,233 providers of this specialty who prescribed in Part D. Brand-name drugs were 28% of claims. 40 claims were for opioids.

  1. Monica Mendez Ayala2,600
  2. Specialty average1,380

Most prescribed

  1. Anastrozole843 claims
  2. Ibrance160 claims
  3. Letrozole134 claims
  4. Exemestane118 claims
  5. Tamoxifen Citrate95 claims
  6. Promacta86 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: $2,637.36

117 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. Monica Mendez Ayala$2,637.36
  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.

Bills Medicare through 3 group practices

  1. Bayamon Oncology Medical CspBayamon, PR
  2. Doctor's Center Hematology And Oncology Group, PscManati, PR
  3. Doctors Center Hematology And Oncology Group Bayamon PscBayamon, PR

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Monica Mendez Ayala among 574 specialist records in Puerto Rico

Monica Mendez Ayala, M.D. 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
  • Graduated1997 · median 1985 among the 147 with a school on file
  • Record last updated2015 · 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).

13 specialist records list a practice address in Manati

They are 13 of the 729 NPPES records with a practice address in Manati, and 574 specialist records in Puerto Rico.

The 8 specialist records with the nearest ZIP codes

  1. Carmen De Ruiz, MDManati, PR 006741225161508
  2. Luis Gandia, M.D.Manati, PR 006741376517748
  3. Jose Garcia, M.D.Manati, PR 006741548236821
  4. Luis Gonzalez Castrodad, M.D.Manati, PR 006741366507287
  5. Felix Lopez, M.D.Manati, PR 006741548337546
  6. Apolinar MartinezManati, PR 006741952502361
  7. Carmen Padilla Ortiz, M.D.Manati, PR 006741235167446
  8. Orlando Rodriguez, MDManati, PR 006741548278070

Common questions

What is Monica Mendez Ayala, M.D.'s NPI number?

Monica Mendez Ayala, M.D.'s National Provider Identifier (NPI) is 1477580983, issued on Jun 28, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Monica Mendez Ayala, M.D. located?

The NPPES record lists a practice address at 605 Carr 2 # KM47.7, Manati, PR, 00674. Phone: (787) 621-3400. Providers update this record themselves, so call before visiting.

How can I verify Monica Mendez Ayala, M.D.'s license?

NPPES lists Puerto Rico license number 13157, as entered by the provider. Search the Puerto Rico board that licenses this profession; the NPPES record confirms identity only.

How much does Monica Mendez Ayala, M.D. prescribe under Medicare Part D?

In 2024, Monica Mendez Ayala, M.D. had 2,600 Medicare Part D claims for 420 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.