NPPES file of Aug 9, 2026

Omar Francisco Mendez Melendez, M.D.

Internal Medicine Physician · San Juan, PR

Omar Francisco Mendez Melendez, M.D. is an internal medicine physician with a practice address in San Juan, Puerto Rico, and NPI 1043600182, issued on Jan 28, 2015. Check the license (Puerto Rico 21027, 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
1043600182
Name
Omar Francisco Mendez Melendez
Credential
M.D.
Primary taxonomy
Internal Medicine Physician 207R00000X
License number
21027 PR
Self-reported in NPPES; status is on the state search
Practice location
Puerto Rico Medical Center, San Juan, PR 00917
Phone
(939) 256-3224
Enumerated
Jan 28, 2015
Record last updated
Apr 7, 2021 (not updated in 5 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20210826000902); 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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Also registered at Puerto Rico Medical Center

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Daphne Diaz Vazquez, M.D.Obstetrics & Gynecology Physician1760863526
  2. Marlene Farinacci Vilaro, MDPulmonary Disease Physician1407237886
  3. Juan Garcia Puebla, M.D.Pulmonary Disease Physician1689021727
  4. Emily Irizarry-Pagan, M.D.General Practice Physician1235531526
  5. Nargies Licha SolerPediatrics Physician1699126227
  6. Sofia Lopez Diaz, MDObstetrics & Gynecology Physician1275063505

Verify Omar Francisco Mendez Melendez 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 21027
    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.

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52% fewer Medicare Part D claims than the average internal medicine physician in 2024

1,537 Medicare Part D claims for 275 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 55% of claims.

  1. Omar Mendez Melendez1,537
  2. Specialty average3,176

Most prescribed

  1. Albuterol Sulfate Hfa271 claims
  2. Budesonide-Formoterol Fumarate186 claims
  3. Trelegy Ellipta170 claims
  4. Montelukast Sodium117 claims
  5. Symbicort110 claims
  6. Fluticasone Propionate58 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: $1,939.46

81 payments; by number, the most common kind was food and beverage; the largest payer was GlaxoSmithKline, LLC. The 50,334 providers of this specialty with any payment received $1,303.06 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Omar Mendez Melendez$1,939.46
  2. Specialty average$1,303.06

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

Bills Medicare through one group practice

  1. Respiratory Care Specialists LLPHato Rey, PR

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

Omar Francisco Mendez Melendez among 1,146 internal medicine physician records in Puerto Rico

Omar Francisco Mendez Melendez, M.D. is one of 1,146 internal medicine physician records with a practice address in Puerto Rico. 79% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2015, is newer than 69% of them.

  • NPI issued2015 · 69% of these records are older, 29% newer
  • In a Medicare fileYes · 79% of these records are
  • In the CMS Doctors and Clinicians fileYes · 52% of these records are
  • Graduated2012 · median 1996 among the 595 with a school on file
  • Record last updated2021 · 55% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a Puerto Rico practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

322 internal medicine physician records list a practice address in San Juan

They are 322 of the 8,960 NPPES records with a practice address in San Juan, and 1,146 internal medicine physician records in Puerto Rico.

The 8 internal medicine physician records with the nearest ZIP codes

  1. Nicolas Betancourt, M.D.San Juan, PR 009171053445403
  2. Luis Borrego Conde, M.D.San Juan, PR 009171972553824
  3. James Bryan-Diaz, M.D.San Juan, PR 009171932413499
  4. Josely Carreras Hernandez, M. D.San Juan, PR 009171629227632
  5. Rolando Cruz, M.DSan Juan, PR 009171487767620
  6. Maritza De La Cruz, MDHato Rey, PR 009171750325924
  7. Pedro Del Valle De Tomas, MDSan Juan, PR 009171023126430
  8. Wilda Figueroa-Cruz, M.D.San Juan, PR 009171982615928

Common questions

What is Omar Francisco Mendez Melendez, M.D.'s NPI number?

Omar Francisco Mendez Melendez, M.D.'s National Provider Identifier (NPI) is 1043600182, issued on Jan 28, 2015. An NPI identifies a provider in billing; it is not a license.

Where is Omar Francisco Mendez Melendez, M.D. located?

The NPPES record lists a practice address at Puerto Rico Medical Center, San Juan, PR, 00917. Phone: (939) 256-3224. Providers update this record themselves, so call before visiting.

How can I verify Omar Francisco Mendez Melendez, M.D.'s license?

NPPES lists Puerto Rico license number 21027, as entered by the provider. Search the Puerto Rico board that licenses this profession; the NPPES record confirms identity only.

How much does Omar Francisco Mendez Melendez, M.D. prescribe under Medicare Part D?

In 2024, Omar Francisco Mendez Melendez, M.D. had 1,537 Medicare Part D claims for 275 beneficiaries; the average among internal medicine physician prescribers was 3,176. 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.