Wilfredo Diaz, MD
Emergency Medicine Physician · San Juan, PR
Wilfredo Diaz, MD is an emergency medicine physician with a practice address in San Juan, Puerto Rico, and NPI 1720063316, issued on Dec 7, 2005. Check the license (Puerto Rico 5542, as entered in NPPES) with the Puerto Rico board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Wilfredo Diaz
- Credential
- MD
- Primary taxonomy
- Emergency Medicine Physician 207P00000X
- License number
- 5542 PR
Self-reported in NPPES; status is on the state search - Practice location
- Administracion DE Servicios Medicos DE PR, San Juan, PR 00926
- Phone
- (787) 777-3535
- Enumerated
- Dec 7, 2005
- Record last updated
- Jan 15, 2013 (not updated in 13 years: call before relying on the address or phone)
- Fax
- (787) 251-4518
- Entity
- Type 1 · individual
Also registered at Administracion DE Servicios Medicos DE PR
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Jose Brea, MDSurgery Physician1447236724
- Olga Cruz, MDEmergency Medicine Physician1609852383
- Anibal Sandoz Rivera, MDGeneral Practice Physician1558345181
Verify Wilfredo Diaz in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Puerto Rico board licenses this profession
Search for license 5542Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
81% fewer Medicare Part D claims than the average emergency medicine physician in 2024
42 Medicare Part D claims for 11 beneficiaries, against an average of 226 among the 54,106 providers of this specialty who prescribed in Part D.
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.
Emergency Medicine Physician providers in Puerto Rico
There are 278 emergency medicine physician records in Puerto Rico.
Other emergency medicine physician records in Puerto Rico
- Rachelly Abreu, M.D.Bayamon, PR1316269384
- Thaer AbukhalilCarolina, PR1174905798
- Mario Acosta Duarte, M.D.San Juan, PR1568416659
- Edil Agosto DiazCarolina, PR1609070978
- Miguel Agrait Gonzalez, M.D.Bayamon, PR1891059747
- Felipe Aguayo RomeroCarolina, PR1629424528
- Alenis Alejandro Escribano, M.D.Guaynabo, PR1437427770
- Eduardo Alemany ColomSan Juan, PR1992172043
- Jose Alicea MeleroAibonito, PR1275637431
- Angelisse Almodovar-BernierSan Juan, PR1063722437
Common questions
What is Wilfredo Diaz, MD's NPI number?
Wilfredo Diaz, MD's National Provider Identifier (NPI) is 1720063316, issued on Dec 7, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Wilfredo Diaz, MD located?
The NPPES record lists a practice address at Administracion DE Servicios Medicos DE PR, San Juan, PR, 00926. Phone: (787) 777-3535. Providers update this record themselves, so call before visiting.
How can I verify Wilfredo Diaz, MD's license?
NPPES lists Puerto Rico license number 5542, as entered by the provider. Search the Puerto Rico board that licenses this profession; the NPPES record confirms identity only.
How much does Wilfredo Diaz, MD prescribe under Medicare Part D?
In 2024, Wilfredo Diaz, MD had 42 Medicare Part D claims for 11 beneficiaries; the average among emergency medicine physician prescribers was 226. 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.