Germariliz Diaz Martinez, M.D.
General Practice Physician · Yabucoa, PR
Germariliz Diaz Martinez, M.D. is a general practice physician with a practice address in Yabucoa, Puerto Rico, and NPI 1306251491, issued on Jun 26, 2014. Check the license (Puerto Rico 18794, as entered in NPPES) with the Puerto Rico board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Germariliz Diaz Martinez
- Credential
- M.D.
- Primary taxonomy
- General Practice Physician 208D00000X
- License number
- 18794 PR
Self-reported in NPPES; status is on the state search - Practice location
- Urb. Mendez #2, Yabucoa, PR 00767
- Phone
- (787) 266-3128
- Enumerated
- Jun 26, 2014
- Record last updated
- Jun 26, 2014 (not updated in 12 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20141219001609); may accept Medicare assignment
- Entity
- Type 1 · individual
8 nearest general practice physician records → All 4,170 in Puerto Rico → Look up another NPI →
Verify Germariliz Diaz Martinez 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 18794Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
2.4 times the Medicare Part D claims of the average general practice physician in 2024
7,252 Medicare Part D claims for 331 beneficiaries, against an average of 3,030 among the 8,395 providers of this specialty who prescribed in Part D. Brand-name drugs were 16% of claims. 32 claims were for opioids.
Most prescribed
- Gabapentin450 claims
- Synthroid303 claims
- Atorvastatin Calcium286 claims
- Omeprazole212 claims
- Levothyroxine Sodium203 claims
- Losartan Potassium203 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.
Germariliz Diaz Martinez among 4,170 general practice physician records in Puerto Rico
Germariliz Diaz Martinez, M.D. is one of 4,170 general practice physician records with a practice address in Puerto Rico. 78% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2014, is newer than 60% of them.
- NPI issued2014 · 60% of these records are older, 38% newer
- In a Medicare fileYes · 78% of these records are
- In the CMS Doctors and Clinicians fileYes · 29% of these records are
- Graduated2008 · median 2004 among the 1,228 with a school on file
- Record last updated2014 · 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 208D00000X and a Puerto Rico practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
19 general practice physician records list a practice address in Yabucoa
They are 19 of the 153 NPPES records with a practice address in Yabucoa, and 4,170 general practice physician records in Puerto Rico.
All 4,170 in Puerto Rico → Every provider in Yabucoa → General Practice Physician nationwide →
The 8 general practice physician records with the nearest ZIP codes
- Raul Acosta, M.D.Yabucoa, PR 007671912045378
- Elvin Alvarado, MDYabucoa, PR 007671124170774
- Carlos Carrion Rios, M.D.Yabucoa, PR 007671104910678
- Rafael Coradin Ruiz, MDGabucoa, PR 007671497797294
- Rafael Delgado, GP MDYabucoa, PR 007671841230562
- Juan Gomez Hernandez, MDYabucoa, PR 007671063521912
- Luis Jimenez Ocasio, MDYabucoa, PR 007671578531539
- Luz Lopez, MDYabucoa, PR 007671699751867
Common questions
What is Germariliz Diaz Martinez, M.D.'s NPI number?
Germariliz Diaz Martinez, M.D.'s National Provider Identifier (NPI) is 1306251491, issued on Jun 26, 2014. An NPI identifies a provider in billing; it is not a license.
Where is Germariliz Diaz Martinez, M.D. located?
The NPPES record lists a practice address at Urb. Mendez #2, Yabucoa, PR, 00767. Phone: (787) 266-3128. Providers update this record themselves, so call before visiting.
How can I verify Germariliz Diaz Martinez, M.D.'s license?
NPPES lists Puerto Rico license number 18794, as entered by the provider. Search the Puerto Rico board that licenses this profession; the NPPES record confirms identity only.
How much does Germariliz Diaz Martinez, M.D. prescribe under Medicare Part D?
In 2024, Germariliz Diaz Martinez, M.D. had 7,252 Medicare Part D claims for 331 beneficiaries; the average among general practice physician prescribers was 3,030. 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.