Sylmarie M. Marrero Martinez, MD
Internal Medicine Physician · San Juan, PR
Sylmarie M. Marrero Martinez, MD is an internal medicine physician with a practice address in San Juan, Puerto Rico, and NPI 1245475938, issued on Dec 9, 2008. Check the license (Puerto Rico 18192, as entered in NPPES) with the Puerto Rico board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Sylmarie M. Marrero Martinez
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 18192 PR
Self-reported in NPPES; status is on the state search - Practice location
- 1399 Calle Feria, San Juan, PR 00909
- Phone
- (787) 518-5307
- Enumerated
- Dec 9, 2008
- Record last updated
- May 21, 2018 (not updated in 8 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20121114000359); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 1,146 in Puerto Rico → Look up another NPI →
Verify Sylmarie M. Marrero 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 18192Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
81% fewer Medicare Part D claims than the average internal medicine physician in 2024
591 Medicare Part D claims for 116 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 13% of claims.
Most prescribed
- Gabapentin30 claims
- Losartan Potassium24 claims
- Atorvastatin Calcium22 claims
- Ciprofloxacin Hcl22 claims
- Metformin Hcl21 claims
- Amlodipine Besylate20 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: $150.78
2 payments; by number, the most common kind was food and beverage; the largest payer was E.R. Squibb & Sons, L.L.C. The 50,334 providers of this specialty with any payment received $1,303.06 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.
Sylmarie M. Marrero Martinez among 1,146 internal medicine physician records in Puerto Rico
Sylmarie M. Marrero Martinez, MD is one of 1,146 internal medicine physician records with a practice address in Puerto Rico. 79% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2008, is newer than 59% of them.
- NPI issued2008 · 59% of these records are older, 38% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 52% of these records are
- Graduated2003 · median 1996 among the 595 with a school on file
- Record last updated2018 · 55% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a Puerto Rico practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
322 internal medicine physician records list a practice address in San Juan
They are 322 of the 8,960 NPPES records with a practice address in San Juan, and 1,146 internal medicine physician records in Puerto Rico.
All 1,146 in Puerto Rico → Every provider in San Juan → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Yanira Aviles-Burgos, M.D.San Juan, PR 009091538316971
- Aida Blasini, M.D.San Juan, PR 009091255331872
- Roberto Calderon, MDSan Juan, PR 009091851460166
- Gabriel Castro ColonSan Juan, PR 009091407303282
- Gregorio Cortes-Soto, M.D.San Juan, PR 009091003858994
- Nidza Gomez Colon, MDSanturee, PR 009091700877156
- Orlando Lopez Santiago, MDSanturce, PR 009091962567750
- Mariana Martinez, MDSan Juan, PR 009091831680065
Common questions
What is Sylmarie M. Marrero Martinez, MD's NPI number?
Sylmarie M. Marrero Martinez, MD's National Provider Identifier (NPI) is 1245475938, issued on Dec 9, 2008. An NPI identifies a provider in billing; it is not a license.
Where is Sylmarie M. Marrero Martinez, MD located?
The NPPES record lists a practice address at 1399 Calle Feria, San Juan, PR, 00909. Phone: (787) 518-5307. Providers update this record themselves, so call before visiting.
How can I verify Sylmarie M. Marrero Martinez, MD's license?
NPPES lists Puerto Rico license number 18192, as entered by the provider. Search the Puerto Rico board that licenses this profession; the NPPES record confirms identity only.
How much does Sylmarie M. Marrero Martinez, MD prescribe under Medicare Part D?
In 2024, Sylmarie M. Marrero Martinez, MD had 591 Medicare Part D claims for 116 beneficiaries; the average among internal medicine physician prescribers was 3,176. 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.