Sylmarie Marrero Martinez, MD
NPI 1245475938 · Internal Medicine Physician · San Juan, PR
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Sylmarie Marrero Martinez, MD is a Internal Medicine Physician provider in San Juan, PR (NPI 1245475938).
Provider details
- NPI number
- 1245475938
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- Yes
- License
- 18192 (PR)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
17 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
146 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our .
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 50 Minutes99233 | 61 | $115 |
| New Patient Office Or Other Outpatient Visit With Low Level of Medical Decision Making, If Using Time, 30 Minutes Or More99203 | 47 | $110 |
| Routine Electrocardiogram (ecg) Using at Least 12 Leads With Interpretation and Report Only93010 | 38 | $8 |
Typical Medicare-allowed amounts for these services range $8–$115 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 16 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Gabapentin | 30 | — |
| Losartan Potassium | 24 | 12 |
| Atorvastatin Calcium | 22 | 11 |
| Ciprofloxacin Hcl | 22 | 21 |
| Metformin Hcl | 21 | — |
| Amlodipine Besylate | 20 | — |
| Rosuvastatin Calcium | 19 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$151 across 2 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2008-12-09
- Last updated
- 2018-05-21
Frequently asked questions
- What is Sylmarie Marrero Martinez's NPI number?
- Sylmarie Marrero Martinez's National Provider Identifier (NPI) is 1245475938, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Sylmarie Marrero Martinez's specialty?
- Sylmarie Marrero Martinez is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Sylmarie Marrero Martinez located?
- Sylmarie Marrero Martinez's practice location on file with NPPES is 1399 Calle Feria, San Juan, PR 00909.
- What is Sylmarie Marrero Martinez's phone number?
- The practice phone number listed in the NPPES registry for Sylmarie Marrero Martinez is (787) 518-5307.
- Does Sylmarie Marrero Martinez accept Medicare?
- Sylmarie Marrero Martinez is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Sylmarie Marrero Martinez's NPI active?
- Yes — Sylmarie Marrero Martinez's NPI (1245475938) is active in the NPPES registry as of the last update on 2018-05-21.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.