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Emergency Medicine

Steven D. Hollosi, DO

Works at hospitals in Raleigh, NC · North Carolina

Summary

Dr. Steven D. Hollosi, DO is an emergency medicine doctor at 4420 Lake Boone Trl, Raleigh, NC 27607. Phone: (919) 784-3100. Accepts Medicare assignment. In 2024, Steven D. Hollosi had 511 Original Medicare patients and 985 services. NPI 1881856144. 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: 4420 Lake Boone Trl, Raleigh, NC 27607 · Directions
  • Phone: (919) 784‑3100
  • Medicare: Accepts Medicare assignment
  • Hospital: Rex Hospital
  • Group practice: Raleigh Emergency Medicine Associates Inc
  • Medical school: New York College Of Osteo Medicine Of New York Institute Of Technology · graduated 2008 (18 years since medical school)
  • Gender (as listed): Male

From official Medicare data

This page shows what Medicare's official clinician data says about Steven D. Hollosi, 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 Steven D. Hollosi accept Medicare assignment?
Yes. Medicare's clinician data says Steven D. Hollosi 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 Steven D. Hollosi see?
In 2024, CMS data shows 511 Original Medicare patients and 985 services for Steven D. Hollosi. This counts Original Medicare only and measures volume, not quality.
What is Steven D. Hollosi's NPI number?
1881856144. 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 Steven D. Hollosi, 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 patients511
Services billed to Medicare985
Different services or procedures22
Participating Medicare providerYes
Average age of these patients76

Most frequent services

  1. Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only (93010)453 services
  2. Emergency department visit with high level of medical decision making (99285)350 services
  3. Critical care, first 30-74 minutes (99291)84 services
  4. Emergency department visit with moderate level of medical decision making (99284)44 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%
  • Arthritis65%
  • Ischemic heart disease49%
  • Chronic kidney disease42%
  • Anxiety41%

Hospitals where Steven D. Hollosi works

Medicare's Facility Affiliation Data lists Steven D. Hollosi 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.

  • Rex HospitalRaleigh, NC · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 340114

Practice locations

Addresses where Steven D. Hollosi is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Steven D. Hollosi as a member of this group (CMS data updated October 2, 2026).

  • Raleigh Emergency Medicine Associates Inc29 clinicians in the group

Specialties

Find other Emergency Medicine doctors in North Carolina →

Other emergency medicine doctors in Raleigh

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

All emergency medicine doctors in Raleigh →

Other clinicians in Raleigh Emergency Medicine Associates Inc

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

Clinician information

CredentialDO
Medical schoolNew York College Of Osteo Medicine Of New York Institute Of Technology
Graduation year2008 (18 years since medical school)
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1881856144
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