John R. Fernandez, MD

Medicare activity in 2024

Official CMS public-use data for John R. Fernandez, data year 2024 (released May 21, 2026). It covers Original Medicare (fee-for-service) patients only, not Medicare Advantage or other insurance. It shows volume, not quality or outcomes. CMS hides any count of 10 or fewer patients.

Most frequent services

1. Emergency department visit with moderate level of medical decision making (99284)157 services
2. Emergency department visit with high level of medical decision making (99285)117 services
3. Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only (93010)76 services
4. Critical care, first 30-74 minutes (99291)26 services

Chronic conditions among these patients

Share of this clinician’s Original Medicare patients with each condition, as published by CMS (it describes the patients, not the care given).

• High blood pressure75%
• High cholesterol75%
• Arthritis56%
• Ischemic heart disease38%
• Diabetes35%
• Anxiety31%

Hospitals where John R. Fernandez works

Medicare's Facility Affiliation Data lists John R. Fernandez at these hospitals (updated October 2, 2026). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians. Star rating and emergency services: Hospital General Information (CMS), data updated October 26, 2026.

• St Lucie Medical CenterPort Saint Lucie, FL · Acute Care Hospital · Medicare rating: 1 of 5 stars · Emergency services: listed by Medicare · CCN 100260

Practice locations

Addresses where John R. Fernandez is enrolled with Medicare (CMS data updated October 2, 2026).

• 3275 SW Darwin Blvd, St Lucie Medical Centers FsedPort Saint Lucie, FL 34953 (772) 398‑1969

Group practices

Medicare enrollment lists John R. Fernandez as a member of this group (CMS data updated October 2, 2026).

• Emergency Medicine Services of Fl LLC712 clinicians in the group

Specialties

• Emergency Medicineprimary

Find other Emergency Medicine doctors in Florida →

Other emergency medicine doctors in Port Saint Lucie

Clinicians with the same Medicare primary specialty in Port Saint Lucie, FL — not a recommendation.

• Brooke L. Ndoj, DO
• Kara Mann, DO
• Bohdan Boytsov, DO
• Natalie E. Blumenauer, MD
• Julie Estrada, MD
• Walter J. Kaniefski, MD
• James Grow, DO
• Sarah M. Fowles, DO

All emergency medicine doctors in Port Saint Lucie →

Other clinicians in Emergency Medicine Services of Fl LLC

Medicare enrollment lists these clinicians in the same group practice — not a recommendation.

• Christian R. Cochrane, DO
• Sharon R. Plachte, NP
• Eric Braseth, MD
• Alexander N. Diaz, MD
• Babak Saadatmand, MD
• Jeffrey S. Davidson, DO

Clinician information

Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.

Sources

1. Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated October 2, 2026, retrieved October 29, 2026
2. Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
3. National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
4. Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
5. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
6. Medicare Care Compare — official Medicare tool to look up clinicians