William Diaz Herrera, MD
Pediatrics Physician · San Juan, PR
William Diaz Herrera, MD is a pediatrics physician with a practice address in San Juan, Puerto Rico, and NPI 1750483731, issued on Sep 1, 2006. Check the license (Puerto Rico 6505, as entered in NPPES) with the Puerto Rico board that licenses this profession; the federal record below is the public data PlainDoctor holds for this provider.
- Name
- William Diaz Herrera
- Credential
- MD
- Primary taxonomy
- Pediatrics Physician 208000000X
- License number
- 6505 PR
Self-reported in NPPES; status is on the state search - Practice location
- Ave Sao Patricas, San Juan, PR 00921
- Phone
- (787) 782-3870
- Enumerated
- Sep 1, 2006
- Record last updated
- Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
- Fax
- (787) 782-3870
- Entity
- Type 1 · individual
Verify William Diaz Herrera 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 6505Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
230 pediatrics physician records list a practice address in San Juan
They are 230 of the 8,960 NPPES records with a practice address in San Juan, and 808 pediatrics physician records in Puerto Rico. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
All 230 in San Juan → All 808 in Puerto Rico → Every provider in San Juan →
Other pediatrics physician records in Puerto Rico
- Vivian Acebal Lopez, M.D.San Juan, PR1881810091
- Carlos Acevedo, MDVega Alta, PR1558402784
- Edgar Acevedo, M.D.San Juan, PR1235332958
- Hector Acevedo, MDCaguas, PR1730159153
- Sandra Acevedo, M.D.Bayamon, PR1235358904
- Sharon AcevedoPonce, PR1669841169
- Wida Acevedo, M.D.Guaynabo, PR1669450193
- Aileen Acevedo Ruiz, MDCaguas, PR1376190546
- Midnela Acevedo-Flores, M.D.San Juan, PR1497763668
- Luis Acosta, M.D.Vega Alta, PR1366785438
Common questions
What is William Diaz Herrera, MD's NPI number?
William Diaz Herrera, MD's National Provider Identifier (NPI) is 1750483731, issued on Sep 1, 2006. An NPI identifies a provider in billing; it is not a license.
Where is William Diaz Herrera, MD located?
The NPPES record lists a practice address at Ave Sao Patricas, San Juan, PR, 00921. Phone: (787) 782-3870. Providers update this record themselves, so call before visiting.
How can I verify William Diaz Herrera, MD's license?
NPPES lists Puerto Rico license number 6505, as entered by the provider. Search the Puerto Rico board that licenses this profession; the NPPES record confirms identity 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. 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.