NPPES file of Aug 9, 2026

Rafael Luis Santiago, M.D.

General Practice Physician · Ponce, PR

Rafael Luis Santiago, M.D. is a general practice physician with a practice address in Ponce, Puerto Rico, and NPI 1437235579, issued on Oct 31, 2006. Check the license (Puerto Rico 5884, 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
1437235579
Name
Rafael Luis Santiago
Credential
M.D.
Primary taxonomy
General Practice Physician 208D00000X
License number
5884 PR
Self-reported in NPPES; status is on the state search
Practice location
Los Almendros, 1404 German Rieckhoff, Ponce, PR 00716
Phone
(787) 848-8024
Enumerated
Oct 31, 2006
Record last updated
Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
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.
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Verify Rafael Luis Santiago 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 5884
    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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98% fewer Medicare Part D claims than the average general practice physician in 2024

58 Medicare Part D claims, against an average of 3,030 among the 8,395 providers of this specialty who prescribed in Part D.

  1. Rafael Santiago58
  2. Specialty average3,030

Most prescribed

  1. Diltiazem 24hr Er (Cd)12 claims
  2. Irbesartan-Hydrochlorothiazide12 claims
  3. Allopurinol11 claims
  4. Repaglinide11 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.

Rafael Luis Santiago among 4,170 general practice physician records in Puerto Rico

Rafael Luis Santiago, M.D. is one of 4,170 general practice physician records with a practice address in Puerto Rico. 78% 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 7% of them.

  • NPI issued2006 · 7% of these records are older, 65% newer
  • In a Medicare fileYes · 78% of these records are
  • In the CMS Doctors and Clinicians fileNo · 29% of these records are
  • Record last updated2007 · 58% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208D00000X and a Puerto Rico practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

230 general practice physician records list a practice address in Ponce

They are 230 of the 3,338 NPPES records with a practice address in Ponce, and 4,170 general practice physician records in Puerto Rico.

The 8 general practice physician records with the nearest ZIP codes

  1. Lorieva Acevedo, MDPonce, PR 007161245270560
  2. Jaime Ayala, M.D.Ponce, PR 007161588659007
  3. Juana Bisono-Bido, MDPonce, PR 007161861508129
  4. Roberto Cartagena, M.D.Ponce, PR 007161841238920
  5. Ricardo Cedeno-Rivera, MDPonce, PR 007161598751661
  6. Andres Delanoy, MDPonce, PR 007161679656425
  7. Gricel Emmanuelli Torres, MDPonce, PR 007161932280575
  8. Edgardo Figueroa-Muniz, MDPonce, PR 007161730150244

Common questions

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

Rafael Luis Santiago, M.D.'s National Provider Identifier (NPI) is 1437235579, issued on Oct 31, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Rafael Luis Santiago, M.D. located?

The NPPES record lists a practice address at Los Almendros, 1404 German Rieckhoff, Ponce, PR, 00716. Phone: (787) 848-8024. Providers update this record themselves, so call before visiting.

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

NPPES lists Puerto Rico license number 5884, as entered by the provider. Search the Puerto Rico board that licenses this profession; the NPPES record confirms identity only.

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

In 2024, Rafael Luis Santiago, M.D. had 58 Medicare Part D claims; the average among general practice physician prescribers was 3,030. 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.