Carlos Fernandez, MD
NPI 1174590897 · Rheumatology Physician · San Juan, PR
Enrolled with Medicare as Practitioner - Rheumatology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Carlos Fernandez, MD is a Rheumatology Physician provider in San Juan, PR (NPI 1174590897).
Provider details
- NPI number
- 1174590897
- Entity type
- Individual
- Primary specialty
- Rheumatology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 3933 (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
20 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
55 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 | 55 | $89 |
Typical Medicare-allowed amounts for these services range $89–$89 (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 · 55 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Gabapentin | 391 | 108 |
| Methotrexate Sodiumbrand: Methotrexate | 383 | 65 |
| Ibandronate Sodium | 241 | 50 |
| Duloxetine Hcl | 233 | 63 |
| Dexamethasone | 214 | 97 |
| Prednisone | 193 | 37 |
| Diclofenac Sodiumbrand: Diclofenac Sodium Er | 189 | 85 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$143 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
- 2006-03-01
- Last updated
- 2012-11-08
Frequently asked questions
- What is Carlos Fernandez's NPI number?
- Carlos Fernandez's National Provider Identifier (NPI) is 1174590897, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Carlos Fernandez's specialty?
- Carlos Fernandez is listed in the NPPES registry with a primary specialty of Rheumatology Physician (Allopathic & Osteopathic Physicians).
- Where is Carlos Fernandez located?
- Carlos Fernandez's practice location on file with NPPES is Road 21, Las Lomas Suite 011, San Juan, PR 00921-0921.
- What is Carlos Fernandez's phone number?
- The practice phone number listed in the NPPES registry for Carlos Fernandez is (787) 783-3055.
- Does Carlos Fernandez accept Medicare?
- Carlos Fernandez 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's NPI active?
- Yes — Carlos Fernandez's NPI (1174590897) is active in the NPPES registry as of the last update on 2012-11-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.