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Emergency Medicine

Jill M. Antoniazzi, MD

Works at hospitals in Charlotte, NC · North Carolina

Summary

Dr. Jill M. Antoniazzi, MD is an emergency medicine doctor at 1000 Blythe Blvd, Charlotte, NC 28203. Accepts Medicare assignment. In 2024, Jill M. Antoniazzi had 188 Original Medicare patients and 305 services. NPI 1043235591. 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: 1000 Blythe Blvd, Charlotte, NC 28203 · Directions
  • Medicare: Accepts Medicare assignment
  • Hospital: Carolinas Medical Center/Behavioral Health
  • Group practice: Carolinas Medical Center
  • Medical school: Medical College Of Pennsylvania · graduated 2002 (24 years since medical school)
  • Gender (as listed): Female

From official Medicare data

This page shows what Medicare's official clinician data says about Jill M. Antoniazzi, 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 Jill M. Antoniazzi accept Medicare assignment?
Yes. Medicare's clinician data says Jill M. Antoniazzi 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 Jill M. Antoniazzi see?
In 2024, CMS data shows 188 Original Medicare patients and 305 services for Jill M. Antoniazzi. This counts Original Medicare only and measures volume, not quality.
What is Jill M. Antoniazzi's NPI number?
1043235591. 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 Jill M. Antoniazzi, 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 patients188
Services billed to Medicare305
Different services or procedures19
Participating Medicare providerYes
Average age of these patients70

Most frequent services

  1. Emergency department visit with high level of medical decision making (99285)120 services
  2. Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only (93010)105 services
  3. Emergency department visit with moderate level of medical decision making (99284)28 services
  4. Critical care, first 30-74 minutes (99291)24 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 cholesterol71%
  • Anxiety47%
  • Arthritis45%
  • Depression44%
  • Chronic kidney disease41%

Hospitals where Jill M. Antoniazzi works

Medicare's Facility Affiliation Data lists Jill M. Antoniazzi 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.

Practice locations

Addresses where Jill M. Antoniazzi is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Jill M. Antoniazzi as a member of this group (CMS data updated October 2, 2026).

  • Carolinas Medical Center1,067 clinicians in the group

Specialties

Find other Emergency Medicine doctors in North Carolina →

Other emergency medicine doctors in Charlotte

Clinicians with the same Medicare primary specialty in Charlotte, NC — not a recommendation.

All emergency medicine doctors in Charlotte →

Other clinicians in Carolinas Medical Center

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

Clinician information

CredentialMD
Medical schoolMedical College Of Pennsylvania
Graduation year2002 (24 years since medical school)
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1043235591
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