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Infectious Disease

Julio C. Mendez, MD

Works at hospitals in Jacksonville, FL · Florida

Summary

Dr. Julio C. Mendez, MD is an infectious disease doctor at 4500 San Pablo Rd S, Jacksonville, FL 32224. Phone: (904) 953-2000. Accepts Medicare assignment. In 2024, Julio C. Mendez had 264 Original Medicare patients and 357 services. NPI 1780673210. 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: Infectious disease doctor (Medicare lists Infectious Disease)
  • Address: 4500 San Pablo Rd S, Jacksonville, FL 32224 · Directions
  • Phone: (904) 953‑2000
  • Medicare: Accepts Medicare assignment
  • Hospital: Mayo Clinic
  • Group practice: Mayo Clinic Jacksonville
  • Medical school: graduated 1987 (39 years since medical school)
  • Gender (as listed): Male
  • Telehealth: offered

From official Medicare data

This page shows what Medicare's official clinician data says about Julio C. Mendez, 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 Julio C. Mendez accept Medicare assignment?
Yes. Medicare's clinician data says Julio C. Mendez 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 Julio C. Mendez see?
In 2024, CMS data shows 264 Original Medicare patients and 357 services for Julio C. Mendez. This counts Original Medicare only and measures volume, not quality.
What is Julio C. Mendez's NPI number?
1780673210. 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 Julio C. Mendez, 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 patients264
Services billed to Medicare357
Different services or procedures15
Participating Medicare providerYes
Average age of these patients69

Most frequent services

  1. Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)122 services
  2. Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)51 services
  3. Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)44 services
  4. Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)43 services
  5. Initial hospital care with straightforward or low level of medical decision making, per day, if using time, at least 40 minutes (99221)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%
  • Chronic kidney disease66%
  • Arthritis59%
  • Diabetes56%
  • Ischemic heart disease50%

Hospitals where Julio C. Mendez works

Medicare's Facility Affiliation Data lists Julio C. Mendez 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.

  • Mayo ClinicJacksonville, FL · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 100151

Practice locations

Addresses where Julio C. Mendez is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Julio C. Mendez as a member of this group (CMS data updated October 2, 2026).

  • Mayo Clinic Jacksonville1,615 clinicians in the group

Specialties

Find other Infectious Disease doctors in Florida →

Other infectious disease doctors in Jacksonville

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

All infectious disease doctors in Jacksonville →

Other clinicians in Mayo Clinic Jacksonville

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

Clinician information

CredentialMD
Graduation year1987 (39 years since medical school)
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
TelehealthOffers telehealth services
NPI (National Provider Identifier)1780673210
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