Benny Nieves-Matias, M.D.
General Practice Physician · Guaynabo, PR
Benny Nieves-Matias, M.D. is a general practice physician with a practice address in Guaynabo, Puerto Rico, and NPI 1669874681, issued on Sep 22, 2014. Check the license (Puerto Rico 18893, as entered in NPPES) with the Puerto Rico board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Benny Nieves-Matias
- Credential
- M.D.
- Primary taxonomy
- General Practice Physician 208D00000X
- License number
- 18893 PR
Self-reported in NPPES; status is on the state search - Practice location
- Carr. 199, KM 1.2, Guaynabo, PR 00969
- Phone
- (787) 740-8787
- Enumerated
- Sep 22, 2014
- Record last updated
- Sep 22, 2014 (not updated in 12 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20141105000219); accepts Medicare assignment
- Medical or professional school
- Ponce School Of Medicine, 2011
- Entity
- Type 1 · individual
8 nearest general practice physician records → All 4,170 in Puerto Rico → Look up another NPI →
Verify Benny Nieves-Matias 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 18893Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
26% more Medicare Part D claims than the average general practice physician in 2024
3,816 Medicare Part D claims for 497 beneficiaries, against an average of 3,030 among the 8,395 providers of this specialty who prescribed in Part D. Brand-name drugs were 9% of claims.
Most prescribed
- Gabapentin230 claims
- Omeprazole197 claims
- Atorvastatin Calcium192 claims
- Simvastatin179 claims
- Losartan Potassium147 claims
- Famotidine144 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.
Benny Nieves-Matias among 4,170 general practice physician records in Puerto Rico
Benny Nieves-Matias, 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
- Graduated2011 · 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).
97 general practice physician records list a practice address in Guaynabo
They are 97 of the 2,143 NPPES records with a practice address in Guaynabo, and 4,170 general practice physician records in Puerto Rico.
All 4,170 in Puerto Rico → Every provider in Guaynabo → General Practice Physician nationwide →
The 8 general practice physician records with the nearest ZIP codes
- Maribel Acevedo, MDGuaynabo, PR 009691699743864
- Maria Gonzalez, M.D.Guaynabo, PR 009691588692396
- Aixa Mariani, MDGuaynabo, PR 009691194708891
- Joaquin Ng, MD.Guaynabo, PR 009691679538391
- Osvaldo Niebla Diaz, M.D.Guaynabo, PR 009691174550131
- Petra Ortiz, M.D.Guaynabo, PR 009691609970094
- Yolanda Pagan Rivera, MDGuaynabo, PR 009691205817400
- Jose Pastrana, MDGuaynabo, PR 009691861462186
Common questions
What is Benny Nieves-Matias, M.D.'s NPI number?
Benny Nieves-Matias, M.D.'s National Provider Identifier (NPI) is 1669874681, issued on Sep 22, 2014. An NPI identifies a provider in billing; it is not a license.
Where is Benny Nieves-Matias, M.D. located?
The NPPES record lists a practice address at Carr. 199, KM 1.2, Guaynabo, PR, 00969. Phone: (787) 740-8787. Providers update this record themselves, so call before visiting.
How can I verify Benny Nieves-Matias, M.D.'s license?
NPPES lists Puerto Rico license number 18893, as entered by the provider. Search the Puerto Rico board that licenses this profession; the NPPES record confirms identity only.
How much does Benny Nieves-Matias, M.D. prescribe under Medicare Part D?
In 2024, Benny Nieves-Matias, M.D. had 3,816 Medicare Part D claims for 497 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.