Medical emergency?Emergency? Call 911. Nearest emergency roomsNearest ERs

General Surgery

Brendan P. Lovasik, MD

Works at hospitals in Saint Louis, MO · Jacksonville, FL · Missouri, Florida

Summary

Dr. Brendan P. Lovasik, MD is a general surgeon at 4500 San Pablo Rd S, Jacksonville, FL 32224. Phone: (904) 953-2000. Accepts Medicare assignment. In 2024, Brendan P. Lovasik had 79 Original Medicare patients and 132 services. NPI 1538522990. 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: General surgeon (Medicare lists General Surgery)
  • Address: 4500 San Pablo Rd S, Jacksonville, FL 32224 · Directions (1 more location)
  • Phone: (904) 953‑2000
  • Medicare: Accepts Medicare assignment
  • Hospitals: Barnes Jewish Hospital, Mayo Clinic
  • Group practice: Washington University (+1 more)
  • Medical school: Emory University School Of Medicine · graduated 2016 (10 years since medical school)
  • Gender (as listed): Male

From official Medicare data

This page shows what Medicare's official clinician data says about Brendan P. Lovasik, 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 Brendan P. Lovasik accept Medicare assignment?
Yes. Medicare's clinician data says Brendan P. Lovasik 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 Brendan P. Lovasik see?
In 2024, CMS data shows 79 Original Medicare patients and 132 services for Brendan P. Lovasik. This counts Original Medicare only and measures volume, not quality.
What is Brendan P. Lovasik's NPI number?
1538522990. 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 Brendan P. Lovasik, 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 patients79
Services billed to Medicare132
Different services or procedures43
Participating Medicare providerYes
Average age of these patients66

Most frequent services

  1. Transplantation of donor kidney (50360)16 services
  2. Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)16 services
  3. Preparation of donor kidney for transplantation (50323)14 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%
  • Chronic kidney disease67%
  • Diabetes51%
  • Arthritis46%
  • Ischemic heart disease39%

Hospitals where Brendan P. Lovasik works

Medicare's Facility Affiliation Data lists Brendan P. Lovasik 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.

  • Barnes Jewish HospitalSaint Louis, MO · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 260032
  • Mayo ClinicJacksonville, FL · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 100151

Practice locations

Addresses where Brendan P. Lovasik is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Brendan P. Lovasik as a member of these groups (CMS data updated October 2, 2026).

  • Washington University3,029 clinicians in the group
  • Mayo Clinic Jacksonville1,615 clinicians in the group

Specialties

Find other General Surgery doctors in Florida →

Other general surgeons in Jacksonville

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

All general surgeons in Jacksonville →

Other clinicians in Washington University

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

Clinician information

CredentialMD
Medical schoolEmory University School Of Medicine
Graduation year2016 (10 years since medical school)
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1538522990
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