NPPES file of Aug 9, 2026

Merbil Gonzalez Diaz, M.D.

Neurology Physician · Mayaguez, PR

Merbil Gonzalez Diaz, M.D. is a neurology physician with a practice address in Mayaguez, Puerto Rico, and NPI 1902878614, issued on Feb 6, 2006. Check the license (Puerto Rico 13818, 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
1902878614
Name
Merbil Gonzalez Diaz
Credential
M.D.
Primary taxonomy
Neurology Physician 2084N0400X
License number
13818 PR
Self-reported in NPPES; status is on the state search
Practice location
351 Ave Hostos, Mayaguez, PR 00680
Phone
(787) 805-7319
Enumerated
Feb 6, 2006
Record last updated
Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20060915000048); accepts Medicare assignment
Medical or professional school
University Of Puerto Rico School Of Medicine, 1994
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.
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Also registered at 351 Ave Hostos

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Jose Gandara, MDDiagnostic Radiology Physician1700966553
  2. Juan Jimenez-Cruz, M.D., F.A.C.O.G.Obstetrics & Gynecology Physician1144388893
  3. Janice Marrero, LCR, CRCProfessional Counselor1215354709
  4. Rogelio Mercado-Seda, MDDermatology Physician1427359157
  5. Bernardo Muniz, M.DPsychiatry Physician1881642783
  6. Eliasin Munoz Gonzalez, M.D.Family Medicine Physician1013024587

Verify Merbil Gonzalez Diaz 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 13818
    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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8.9 times the Medicare Part D claims of the average neurology physician in 2024

12,258 Medicare Part D claims for 1,055 beneficiaries, against an average of 1,370 among the 15,005 providers of this specialty who prescribed in Part D. 27 claims were for opioids.

  1. Merbil Gonzalez Diaz12,258
  2. Specialty average1,370

Most prescribed

  1. Escitalopram Oxalate2,021 claims
  2. Quetiapine Fumarate818 claims
  3. Trazodone Hcl815 claims
  4. Galantamine Er812 claims
  5. Mirtazapine782 claims
  6. Memantine Hcl Er713 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: $561.18

9 payments; by number, the most common kind was food and beverage; the largest payer was Emd Serono, Inc. The 10,858 providers of this specialty with any payment received $8,318.07 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Merbil Gonzalez Diaz$561.18
  2. Specialty average$8,318.07

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

Merbil Gonzalez Diaz among 122 neurology physician records in Puerto Rico

Merbil Gonzalez Diaz, M.D. is one of 122 neurology physician records with a practice address in Puerto Rico. 94% 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 9% of them.

  • NPI issued2006 · 9% of these records are older, 52% newer
  • In a Medicare fileYes · 94% of these records are
  • In the CMS Doctors and Clinicians fileYes · 70% of these records are
  • Graduated1994 · median 1998 among the 86 with a school on file
  • Record last updated2007 · 61% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2084N0400X and a Puerto Rico practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Neurology Physician providers in Puerto Rico

There are 122 neurology physician records in Puerto Rico.

The 8 neurology physician records with the nearest ZIP codes

  1. Jose Acevedo, MDMayaguez, PR 006801447451836
  2. Dalila Natali, M.D,Mayaguez, PR 006801033384623
  3. Luis Natali, MDMayaguez, PR 006801578709440
  4. Alfredo Perez Canabal, MDMayaguez, PR 006801780789073
  5. Luis Freytes-Lugo, M.D.San German, PR 006831316919111
  6. Jose Velez Velez, M.D.San German, PR 006831295181188
  7. Gian Gierbolini, M.D.Manati, PR 006741518935964
  8. Ruddy Guerra Cardona, M.D.Manati, PR 006741760493381

Common questions

What is Merbil Gonzalez Diaz, M.D.'s NPI number?

Merbil Gonzalez Diaz, M.D.'s National Provider Identifier (NPI) is 1902878614, issued on Feb 6, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Merbil Gonzalez Diaz, M.D. located?

The NPPES record lists a practice address at 351 Ave Hostos, Mayaguez, PR, 00680. Phone: (787) 805-7319. Providers update this record themselves, so call before visiting.

How can I verify Merbil Gonzalez Diaz, M.D.'s license?

NPPES lists Puerto Rico license number 13818, as entered by the provider. Search the Puerto Rico board that licenses this profession; the NPPES record confirms identity only.

How much does Merbil Gonzalez Diaz, M.D. prescribe under Medicare Part D?

In 2024, Merbil Gonzalez Diaz, M.D. had 12,258 Medicare Part D claims for 1,055 beneficiaries; the average among neurology physician prescribers was 1,370. 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.