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Emergency Medicine

Gerardo Fernandez Olivero Sr., MD

Works at hospitals in Davenport, FL · Lake Wales, FL · Florida

Summary

Dr. Gerardo Fernandez Olivero Sr., MD is an emergency medicine doctor at 17430 Bali Blvd, Winter Garden, FL 34787. Phone: (863) 422-5582. Accepts Medicare assignment. In 2024, Gerardo Fernandez Olivero Sr. had 445 Original Medicare patients and 701 services. NPI 1134500093. Source: CMS National Downloadable File, updated October 2, 2026; CMS Facility Affiliation Data, updated October 2, 2026; CMS Medicare Physician & Other Practitioners, data year 2024.

  • Specialty: Emergency medicine doctor (Medicare lists Emergency Medicine)
  • Address: 17430 Bali Blvd, Winter Garden, FL 34787 · Directions (2 more locations)
  • Phone: (863) 422‑5582
  • Medicare: Accepts Medicare assignment
  • Hospitals: AdventHealth Heart of Florida, AdventHealth Lake Wales
  • Group practice: Ridgewood Emergency Group, LLC (+1 more)
  • Medical school: graduated 2009 (17 years since medical school)
  • Gender (as listed): Male

From official Medicare data

This page shows what Medicare's official clinician data says about Gerardo Fernandez Olivero Sr., joined by NPI number (data updated October 2, 2026). It is not a recommendation or a rating. Call the office or hospital to confirm before you go.

In a medical emergency, call 911.

Quick answers

Does Gerardo Fernandez Olivero Sr. accept Medicare assignment?
Yes. Medicare's clinician data says Gerardo Fernandez Olivero Sr. accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
How many Medicare patients does Gerardo Fernandez Olivero Sr. see?
In 2024, CMS data shows 445 Original Medicare patients and 701 services for Gerardo Fernandez Olivero Sr.. This counts Original Medicare only and measures volume, not quality.
What is Gerardo Fernandez Olivero Sr.'s NPI number?
1134500093. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Medicare activity in 2024

Official CMS public-use data for Gerardo Fernandez Olivero Sr., 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.

Original Medicare patients445
Services billed to Medicare701
Different services or procedures23
Participating Medicare providerYes
Average age of these patients74

Most frequent services

  1. Emergency department visit with high level of medical decision making (99285)267 services
  2. Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only (93010)202 services
  3. Emergency department visit with moderate level of medical decision making (99284)101 services
  4. Critical care, first 30-74 minutes (99291)87 services
  5. Critical care, each additional 30 minutes (99292)17 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%
  • Arthritis59%
  • Ischemic heart disease49%
  • Diabetes48%
  • Chronic kidney disease47%

Hospitals where Gerardo Fernandez Olivero Sr. works

Medicare's Facility Affiliation Data lists Gerardo Fernandez Olivero Sr. 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.

  • AdventHealth Heart of FloridaDavenport, FL · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 100137
  • AdventHealth Lake WalesLake Wales, FL · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 100099

Practice locations

Addresses where Gerardo Fernandez Olivero Sr. is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Gerardo Fernandez Olivero Sr. as a member of these groups (CMS data updated October 2, 2026).

  • Ridgewood Emergency Group, LLC45 clinicians in the group
  • Lake Wales Emergency Physicians, LLC39 clinicians in the group

Specialties

Find other Emergency Medicine doctors in Florida →

Other emergency medicine doctors in Winter Garden

Clinicians with the same Medicare primary specialty in Winter Garden, FL — not a recommendation.

All emergency medicine doctors in Winter Garden →

Other clinicians in Ridgewood Emergency Group, LLC

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

Clinician information

CredentialMD
Graduation year2009 (17 years since medical school)
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1134500093
CorrectionsReport an error or suggest an update →

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