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Emergency Medicine

Hayley N. Naasz, MD

Works at hospitals in Greensboro, NC · North Carolina

Summary

Dr. Hayley N. Naasz, MD is an emergency medicine doctor at 1200 N Elm St, Greensboro, NC 27401. Phone: (336) 716-2255. Accepts Medicare assignment. In 2024, Hayley N. Naasz had 257 Original Medicare patients and 399 services. NPI 1023646338. 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: 1200 N Elm St, Greensboro, NC 27401 · Directions
  • Phone: (336) 716‑2255
  • Medicare: Accepts Medicare assignment
  • Hospital: The Moses H. Cone Memorial Hospital
  • Group practice: Wake Forest Emergency Providers
  • Medical school: Sanford School Of Medicine Of University Of South Dakota · graduated 2020 (6 years since medical school)
  • Gender (as listed): Female

From official Medicare data

This page shows what Medicare's official clinician data says about Hayley N. Naasz, 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 Hayley N. Naasz accept Medicare assignment?
Yes. Medicare's clinician data says Hayley N. Naasz 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 Hayley N. Naasz see?
In 2024, CMS data shows 257 Original Medicare patients and 399 services for Hayley N. Naasz. This counts Original Medicare only and measures volume, not quality.
What is Hayley N. Naasz's NPI number?
1023646338. 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 Hayley N. Naasz, 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 patients257
Services billed to Medicare399
Different services or procedures22
Participating Medicare providerYes
Average age of these patients75

Most frequent services

  1. Emergency department visit with high level of medical decision making (99285)158 services
  2. Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only (93010)152 services
  3. Critical care, first 30-74 minutes (99291)36 services
  4. Emergency department visit with moderate level of medical decision making (99284)29 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%
  • Arthritis58%
  • Ischemic heart disease44%
  • Anxiety44%
  • Chronic kidney disease42%

Hospitals where Hayley N. Naasz works

Medicare's Facility Affiliation Data lists Hayley N. Naasz 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 Hayley N. Naasz is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Hayley N. Naasz as a member of this group (CMS data updated October 2, 2026).

  • Wake Forest Emergency Providers520 clinicians in the group

Specialties

Find other Emergency Medicine doctors in North Carolina →

Other emergency medicine doctors in Greensboro

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

All emergency medicine doctors in Greensboro →

Other clinicians in Wake Forest Emergency Providers

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

Clinician information

CredentialMD
Medical schoolSanford School Of Medicine Of University Of South Dakota
Graduation year2020 (6 years since medical school)
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1023646338
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