NPPES file of Aug 9, 2026

Joanne Enid Diaz Rodriguez, MD

Internal Medicine Physician · Vega Baja, PR

Joanne Enid Diaz Rodriguez, MD is an internal medicine physician with a practice address in Vega Baja, Puerto Rico, and NPI 1649671272, issued on Sep 15, 2014. Check the license (Puerto Rico 21631, 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
1649671272
Name
Joanne Enid Diaz Rodriguez
Credential
MD
Primary taxonomy
Internal Medicine Physician 207R00000X
License number
21631 PR
Self-reported in NPPES; status is on the state search
Practice location
Carr 155 KM 0.5 Urb. Brasilia, Vega Baja, PR 00693
Phone
(787) 855-2950
Enumerated
Sep 15, 2014
Record last updated
Oct 21, 2020 (not updated in 6 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 Joanne Enid Diaz Rodriguez 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 21631
    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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82% fewer Medicare Part D claims than the average internal medicine physician in 2024

579 Medicare Part D claims for 134 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 11% of claims. 41 claims were for opioids.

  1. Joanne Diaz Rodriguez579
  2. Specialty average3,176

Most prescribed

  1. Clonazepam97 claims
  2. Temazepam50 claims
  3. Tramadol Hcl41 claims
  4. Pregabalin38 claims
  5. Lorazepam31 claims
  6. Alprazolam23 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.

Joanne Enid Diaz Rodriguez among 1,146 internal medicine physician records in Puerto Rico

Joanne Enid Diaz Rodriguez, MD 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 2014, is newer than 67% of them.

  • NPI issued2014 · 67% of these records are older, 31% newer
  • In a Medicare fileYes · 79% of these records are
  • In the CMS Doctors and Clinicians fileNo · 52% of these records are
  • Record last updated2020 · 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).

11 internal medicine physician records list a practice address in Vega Baja

They are 11 of the 392 NPPES records with a practice address in Vega Baja, and 1,146 internal medicine physician records in Puerto Rico.

The 8 internal medicine physician records with the nearest ZIP codes

  1. Guillermo Armaiz, M.D.Vega Baja, PR 006931598740920
  2. Erick Casanova, MDVega Baja, PR 006931326070368
  3. Jose De Leon, M.D.Vega Baja, PR 006931184607988
  4. Rafael Feliz Lebreault, M.D.Vega Baja, PR 006931609800143
  5. Dwayne Garcia Velez, INTERNAL MEDICINE MDVega Baja, PR 006931588209167
  6. Victor Lopez-Llavona, MDVega Baja, PR 006931336232370
  7. Hector Moreno FuentesVega Baja, PR 006931356713176
  8. Edgar Nevarez-Sostre, M.D.Vega Baja, PR 006931710937891

Common questions

What is Joanne Enid Diaz Rodriguez, MD's NPI number?

Joanne Enid Diaz Rodriguez, MD's National Provider Identifier (NPI) is 1649671272, issued on Sep 15, 2014. An NPI identifies a provider in billing; it is not a license.

Where is Joanne Enid Diaz Rodriguez, MD located?

The NPPES record lists a practice address at Carr 155 KM 0.5 Urb. Brasilia, Vega Baja, PR, 00693. Phone: (787) 855-2950. Providers update this record themselves, so call before visiting.

How can I verify Joanne Enid Diaz Rodriguez, MD's license?

NPPES lists Puerto Rico license number 21631, as entered by the provider. Search the Puerto Rico board that licenses this profession; the NPPES record confirms identity only.

How much does Joanne Enid Diaz Rodriguez, MD prescribe under Medicare Part D?

In 2024, Joanne Enid Diaz Rodriguez, MD had 579 Medicare Part D claims for 134 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.