NPPES file of Aug 9, 2026

Mariano E. Gonzalez Diez, MD

Otolaryngology Physician · Arecibo, PR

Mariano E. Gonzalez Diez, MD is an otolaryngology physician with a practice address in Arecibo, Puerto Rico, and NPI 1295713055, issued on Jan 3, 2006. Check the license (Puerto Rico 8699, 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
1295713055
Name
Mariano E. Gonzalez Diez
Credential
MD
Primary taxonomy
Otolaryngology Physician 207Y00000X
License number
8699 PR
Self-reported in NPPES; status is on the state search
Practice location
Ave Miramar #540, Arecibo, PR 00612
Phone
(787) 880-5031
Enumerated
Jan 3, 2006
Record last updated
Jul 13, 2026
Fax
(787) 879-4461
Medicare enrollment
Enrolled (PECOS I20081105000406); accepts Medicare assignment
Medical or professional school
University Of Puerto Rico School Of Medicine, 1985
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
Download card Updates feed

Verify Mariano E. Gonzalez Diez 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 8699
    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

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

Is this page about you? You can ask us to correct, restrict or remove it: how.

7.0 times the Medicare Part D claims of the average otolaryngology physician in 2024

3,777 Medicare Part D claims for 1,347 beneficiaries, against an average of 541 among the 8,339 providers of this specialty who prescribed in Part D. Brand-name drugs were 2% of claims.

  1. Mariano Gonzalez Diez3,777
  2. Specialty average541

Most prescribed

  1. Fluticasone Propionate1,370 claims
  2. Famotidine280 claims
  3. Fluocinolone Acetonide Oil271 claims
  4. Azelastine Hcl259 claims
  5. Amoxicillin-Clavulanate Potass179 claims
  6. Pantoprazole Sodium177 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: $94.60

4 payments; by number, the most common kind was food and beverage; the largest payer was Genzyme Corporation. The 6,429 providers of this specialty with any payment received $1,922.50 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Mariano Gonzalez Diez$94.60
  2. Specialty average$1,922.50

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Mariano E. Gonzalez Diez among 53 otolaryngology physician records in Puerto Rico

Mariano E. Gonzalez Diez, MD is one of 53 otolaryngology physician records with a practice address in Puerto Rico. 92% 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 28% of them.

  • NPI issued2006 · 28% of these records are older, 42% newer
  • In a Medicare fileYes · 92% of these records are
  • In the CMS Doctors and Clinicians fileYes · 77% of these records are
  • Graduated1985 · median 1994 among the 40 with a school on file
  • Record last updated2026 · 62% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Y00000X and a Puerto Rico practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Otolaryngology Physician providers in Puerto Rico

There are 53 otolaryngology physician records in Puerto Rico.

The 8 otolaryngology physician records with the nearest ZIP codes

  1. Mario Gonzalez CarbonellArecibo, PR 006121962938209
  2. Gabriel Rivera-Rivera, MDArecibo, PR 006121457882268
  3. Giancarlo Luigi Sanchez, MDAguadilla, PR 006031083640155
  4. Yadiel Alameda - Rios, M.D.Manati, PR 006741932301892
  5. Juan Portela-Arraiza, MDManati, PR 006741063461788
  6. Gustavo Almodovar-Mercado, M.D.Mayaguez, PR 006801447480918
  7. Carlos Cedo Alzamora, MDMayaguez, PR 006801497747828
  8. Ruben Velazquez-Rousset, M.D., PH.D.Mayaguez, PR 006801720290083

Common questions

What is Mariano E. Gonzalez Diez, MD's NPI number?

Mariano E. Gonzalez Diez, MD's National Provider Identifier (NPI) is 1295713055, issued on Jan 3, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Mariano E. Gonzalez Diez, MD located?

The NPPES record lists a practice address at Ave Miramar #540, Arecibo, PR, 00612. Phone: (787) 880-5031. Providers update this record themselves, so call before visiting.

How can I verify Mariano E. Gonzalez Diez, MD's license?

NPPES lists Puerto Rico license number 8699, as entered by the provider. Search the Puerto Rico board that licenses this profession; the NPPES record confirms identity only.

How much does Mariano E. Gonzalez Diez, MD prescribe under Medicare Part D?

In 2024, Mariano E. Gonzalez Diez, MD had 3,777 Medicare Part D claims for 1,347 beneficiaries; the average among otolaryngology physician prescribers was 541. 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.