Efrain Flores De Hostos, MD
NPI 1083710164 · Nephrology Physician · Mayaguez, PR
Enrolled with Medicare as Practitioner - Nephrology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Efrain Flores De Hostos, MD is a Nephrology Physician provider in Mayaguez, PR (NPI 1083710164).
Provider details
- NPI number
- 1083710164
- Entity type
- Individual
- Primary specialty
- Nephrology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 6559 (PR)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure33% of score
20 yrs in NPPES registry
- Profile completeness33% of score
100% of core fields populated
- Practice footprint20% of score
1 documented practice location
- Open Payments transparency13% of score
Has Open Payments disclosures (2024)
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 methodology.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 11 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Sevelamer Carbonate | 112 | 17 |
| Lanthanum Carbonate | 25 | — |
| Bumetanide | 21 | — |
| Sevelamer Carbonatebrand: Renvela | 21 | — |
| Irbesartan | 17 | — |
| Atorvastatin Calcium | 16 | — |
| Candesartan Cilexetil | 12 | — |
| Doxazosin Mesylate |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$334 across 4 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
- 2006-09-15
- Last updated
- 2007-07-08
Frequently asked questions
- What is Efrain Flores De Hostos's NPI number?
- Efrain Flores De Hostos's National Provider Identifier (NPI) is 1083710164, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Efrain Flores De Hostos's specialty?
- Efrain Flores De Hostos is listed in the NPPES registry with a primary specialty of Nephrology Physician (Allopathic & Osteopathic Physicians).
- Where is Efrain Flores De Hostos located?
- Efrain Flores De Hostos's practice location on file with NPPES is 1050 Los Corazones Ave, Mayaguez, PR 00680-7042.
- What is Efrain Flores De Hostos's phone number?
- The practice phone number listed in the NPPES registry for Efrain Flores De Hostos is (787) 834-5334.
- Does Efrain Flores De Hostos accept Medicare?
- Efrain Flores De Hostos is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Efrain Flores De Hostos's NPI active?
- Yes — Efrain Flores De Hostos's NPI (1083710164) is active in the NPPES registry as of the last update on 2007-07-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.