NPPES file of Aug 9, 2026

Luis D. Flores, M.D.

Hematology & Oncology Physician · San Juan, PR

Luis D. Flores, M.D. is a hematology & oncology physician with a practice address in San Juan, Puerto Rico, and NPI 1285608216, issued on Feb 15, 2006. Check the license (Puerto Rico 13480, 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
1285608216
Name
Luis D. Flores
Credential
M.D.
Primary taxonomy
Hematology & Oncology Physician 207RH0003X
License number
13480 PR
Self-reported in NPPES; status is on the state search
Practice location
369 Calle DE Diego, San Juan, PR 00923
Phone
(787) 756-6999
Enumerated
Feb 15, 2006
Record last updated
Mar 9, 2012 (not updated in 14 years: call before relying on the address or phone)
Fax
(787) 765-7880
Medicare enrollment
Enrolled (PECOS I20040628001560); accepts Medicare assignment
Medical or professional school
University Of Puerto Rico School Of Medicine, 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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8 nearest hematology & oncology physician records → All 134 in Puerto Rico → Look up another NPI →

Also registered at 369 Calle DE Diego

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

  1. Nestor AllendeInternal Medicine Physician1528285202
  2. Rosa Allende, M.D.Internal Medicine Physician1578782728
  3. Miguel Arroyo-Ramos, M.D.Physical Medicine & Rehabilitation Physician1245314327
  4. Roberto De Felix - DavilaPhysical Medicine & Rehabilitation Physician1356455224
  5. Carmen De Leon De Leon, M.DGeneral Practice Physician1174740476
  6. Rene Fernandez-Pelegrina, MDReproductive Endocrinology Physician1528277290

Verify Luis D. Flores 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 13480    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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95% more Medicare Part D claims than the average hematology & oncology physician in 2024

1,708 Medicare Part D claims for 331 beneficiaries, against an average of 877 among the 10,784 providers of this specialty who prescribed in Part D. 52 claims were for opioids.

  1. Luis Flores1,708
  2. Specialty average877

Most prescribed

  1. Anastrozole479 claims
  2. Methylprednisolone96 claims
  3. Erleada85 claims
  4. Metoclopramide Hcl64 claims
  5. Ondansetron Hcl60 claims
  6. Prednisone56 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: $4,365.17

155 payments; by number, the most common kind was food and beverage; the largest payer was Merck Sharp & Dohme LLC. The 8,560 providers of this specialty with any payment received $7,481.41 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Luis Flores$4,365.17
  2. Specialty average$7,481.41

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

Luis D. Flores among 134 hematology & oncology physician records in Puerto Rico

Luis D. Flores, M.D. is one of 134 hematology & oncology physician records with a practice address in Puerto Rico. 91% 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 16% of them.

  • NPI issued2006 · 16% of these records are older, 51% newer
  • In a Medicare fileYes · 91% of these records are
  • In the CMS Doctors and Clinicians fileYes · 73% of these records are
  • Graduated1997 · median 2001 among the 98 with a school on file
  • Record last updated2012 · 63% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RH0003X and a Puerto Rico practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Hematology & Oncology Physician providers in Puerto Rico

There are 134 hematology & oncology physician records in Puerto Rico.

All 134 in Puerto Rico → Every provider in San Juan → Hematology & Oncology Physician nationwide →

The 8 hematology & oncology physician records with the nearest ZIP codes

  1. Arnaldo Quinones, MDSan Juan, PR 009241487746731
  2. Natalia Almodovar Arbelo, MDSan Juan, PR 009211114381902
  3. Norma Arroyo, M.D.San Juan, PR 009211750391454
  4. William Caceres, MDSan Juan, PR 009211518910801
  5. Elizabeth Calderon-Alicea, MDSan Juan, PR 009211285883520
  6. Miguel Colon Donate, MDSan Juan, PR 009211609262781
  7. Armando Garcia, M.D.San Juan, PR 009211346347515
  8. Awilda Maldonado-Mercado, MDSan Juan, PR 009211316930431

Common questions

What is Luis D. Flores, M.D.'s NPI number?

Luis D. Flores, M.D.'s National Provider Identifier (NPI) is 1285608216, issued on Feb 15, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Luis D. Flores, M.D. located?

The NPPES record lists a practice address at 369 Calle DE Diego, San Juan, PR, 00923. Phone: (787) 756-6999. Providers update this record themselves, so call before visiting.

How can I verify Luis D. Flores, M.D.'s license?

NPPES lists Puerto Rico license number 13480, as entered by the provider. Search the Puerto Rico board that licenses this profession; the NPPES record confirms identity only.

How much does Luis D. Flores, M.D. prescribe under Medicare Part D?

In 2024, Luis D. Flores, M.D. had 1,708 Medicare Part D claims for 331 beneficiaries; the average among hematology & oncology physician prescribers was 877. 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.