Carlos Fernandez Sifre, MD
NPI 1306876867 · Internal Medicine Physician · San Juan, PR
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Carlos Fernandez Sifre, MD is a Internal Medicine Physician provider in San Juan, PR (NPI 1306876867).
Provider details
- NPI number
- 1306876867
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- Yes
- License
- 7387 (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
19 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
42 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) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 42 | $75 |
Typical Medicare-allowed amounts for these services range $75–$75 (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 · 61 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 185 | 82 |
| Levothyroxine Sodiumbrand: Synthroid | 131 | 34 |
| Amlodipine Besylate | 125 | 61 |
| Losartan Potassium | 98 | 44 |
| Metoprolol Succinate | 91 | 39 |
| Pantoprazole Sodium | 79 | 34 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$340 across 14 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
- 2006-07-03
- Last updated
- 2019-08-08
Frequently asked questions
- What is Carlos Fernandez Sifre's NPI number?
- Carlos Fernandez Sifre's National Provider Identifier (NPI) is 1306876867, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Carlos Fernandez Sifre's specialty?
- Carlos Fernandez Sifre is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Carlos Fernandez Sifre located?
- Carlos Fernandez Sifre's practice location on file with NPPES is 400 Roosevelt Ave., San Juan, PR 00918.
- What is Carlos Fernandez Sifre's phone number?
- The practice phone number listed in the NPPES registry for Carlos Fernandez Sifre is (787) 751-8739.
- Does Carlos Fernandez Sifre accept Medicare?
- Carlos Fernandez Sifre is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Carlos Fernandez Sifre's NPI active?
- Yes — Carlos Fernandez Sifre's NPI (1306876867) is active in the NPPES registry as of the last update on 2019-08-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.