Juan J. Diaz Hernandez, M.D.
Surgery Physician · San Juan, PR
Juan J. Diaz Hernandez, M.D. is a surgery physician with a practice address in San Juan, Puerto Rico, and NPI 1114121894, issued on Jun 14, 2007. Check the license (Puerto Rico 17169, as entered in NPPES) with the Puerto Rico board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Juan J. Diaz Hernandez
- Credential
- M.D.
- Primary taxonomy
- Surgery Physician 208600000X
- License numbers
- 17169 PR
ME106431 FL
Self-reported in NPPES; status is on the state search - Practice location
- 29 Calle Washington, San Juan, PR 00907
- Phone
- (787) 596-7878
- Enumerated
- Jun 14, 2007
- Record last updated
- Jan 30, 2017 (not updated in 9 years: call before relying on the address or phone)
- Fax
- (787) 721-2204
- Medicare enrollment
- Enrolled (PECOS I20120816000674); accepts Medicare assignment
- Medical or professional school
- University Of Puerto Rico School Of Medicine, 2005
- Entity
- Type 1 · individual
8 nearest surgery physician records → All 230 in Puerto Rico → Look up another NPI →
Also registered at 29 Calle Washington
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Juan J. Diaz Hernandez 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 17169Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
21% fewer Medicare Part D claims than the average surgery physician in 2024
116 Medicare Part D claims for 49 beneficiaries, against an average of 147 among the 20,115 providers of this specialty who prescribed in Part D. 41 claims were for opioids.
Most prescribed
- Tramadol Hcl41 claims
- Tamsulosin Hcl21 claims
- Ketorolac Tromethamine19 claims
- Gabapentin13 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: $188.67
2 payments; by number, the most common kind was food and beverage; the largest payer was Medtronic, Inc. The 17,103 providers of this specialty with any payment received $3,513.80 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Juan J. Diaz Hernandez among 230 surgery physician records in Puerto Rico
Juan J. Diaz Hernandez, M.D. is one of 230 surgery physician records with a practice address in Puerto Rico. 81% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 51% of them.
- NPI issued2007 · 51% of these records are older, 33% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileYes · 61% of these records are
- Graduated2005 · median 1996 among the 140 with a school on file
- Record last updated2017 · 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 208600000X and a Puerto Rico practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Surgery Physician providers in Puerto Rico
There are 230 surgery physician records in Puerto Rico.
All 230 in Puerto Rico → Every provider in San Juan → Surgery Physician nationwide →
The 8 surgery physician records with the nearest ZIP codes
- Miguel Baez StellaSan Juan, PR 009071922085935
- Gabriel Castro GueitsSan Juan, PR 009071215468343
- Eduardo Chinea-Amadeo, MDSan Juan, PR 009071447455522
- Eric Escribano, MDSan Juan, PR 009071528031036
- Gabriel Garcia-Talavera, M.D.San Juan, PR 009071912977448
- Angel Lopez Ruiz, M.D.San Juan, PR 009071881682730
- Cesar Luque Fontanez, M.D.San Juan, PR 009071386929149
- Jose Marin Lopez, MDSan Juan, PR 009071184615668
Common questions
What is Juan J. Diaz Hernandez, M.D.'s NPI number?
Juan J. Diaz Hernandez, M.D.'s National Provider Identifier (NPI) is 1114121894, issued on Jun 14, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Juan J. Diaz Hernandez, M.D. located?
The NPPES record lists a practice address at 29 Calle Washington, San Juan, PR, 00907. Phone: (787) 596-7878. Providers update this record themselves, so call before visiting.
How can I verify Juan J. Diaz Hernandez, M.D.'s license?
NPPES lists Puerto Rico license number 17169, as entered by the provider. Search the Puerto Rico board that licenses this profession; the NPPES record confirms identity only.
How much does Juan J. Diaz Hernandez, M.D. prescribe under Medicare Part D?
In 2024, Juan J. Diaz Hernandez, M.D. had 116 Medicare Part D claims for 49 beneficiaries; the average among surgery physician prescribers was 147. 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.