Xavier Diaz-Hernandez, MD
NPI 1073018586 · Cardiovascular Disease Physician · St Johns, FL
Enrolled with Medicare as Practitioner - Cardiovascular Disease (cardiology) · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Xavier Diaz-Hernandez, MD is a Cardiovascular Disease Physician provider in St Johns, FL (NPI 1073018586).
Provider details
- NPI number
- 1073018586
- Entity type
- Individual
- Primary specialty
- Cardiovascular Disease PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Student, Health Care
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure33% of score
8 yrs in NPPES registry
- Profile completeness33% of score
83% of core fields populated
- Practice footprint20% of score
2 documented practice locations
- 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 · 15 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 68 | 23 |
| Clopidogrel Bisulfatebrand: Clopidogrel | 38 | 14 |
| Spironolactone | 32 | 11 |
| Metoprolol Succinate | 29 | 13 |
| Losartan Potassium | 28 | — |
| Furosemide | 27 | 15 |
| Lisinopril |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$160 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
Additional practice locations (1)
- 1611 Nw 12th AveMiami, FL 33136-1005Phone: (305) 585-1280
Registry dates
- Enumerated
- 2018-03-27
- Last updated
- 2025-07-31
- Certified
- 2025-07-31
Frequently asked questions
- What is Xavier Diaz-Hernandez's NPI number?
- Xavier Diaz-Hernandez's National Provider Identifier (NPI) is 1073018586, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Xavier Diaz-Hernandez's specialty?
- Xavier Diaz-Hernandez is listed in the NPPES registry with a primary specialty of Cardiovascular Disease Physician (Allopathic & Osteopathic Physicians).
- Where is Xavier Diaz-Hernandez located?
- Xavier Diaz-Hernandez's practice location on file with NPPES is 300 Saint Elizabeth Way Ste 110, St Johns, FL 32259.
- What is Xavier Diaz-Hernandez's phone number?
- The practice phone number listed in the NPPES registry for Xavier Diaz-Hernandez is (046) 919-1009.
- Does Xavier Diaz-Hernandez accept Medicare?
- Xavier Diaz-Hernandez is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Xavier Diaz-Hernandez's NPI active?
- Yes — Xavier Diaz-Hernandez's NPI (1073018586) is active in the NPPES registry as of the last update on 2025-07-31.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.