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Advanced Heart Failure and Transplant Cardiology

William C. Mostertz Iii, MD

Works at hospitals in Fayetteville, NC · Pinehurst, NC · Lumberton, NC … · North Carolina

Summary

William C. Mostertz Iii, MD (Advanced Heart Failure and Transplant Cardiology) is listed by Medicare at 5 hospitals in Fayetteville, NC, Pinehurst, NC and Lumberton, NC and other places. NPI 1679928022. Medicare data says the clinician accepts Medicare assignment. Source: CMS Facility Affiliation Data, updated 2026-10-02.

From official Medicare data

This page shows what Medicare's official clinician data says about William C. Mostertz Iii, joined by NPI number (data updated 2026-10-02). It is not a recommendation or a rating. Call the office or hospital to confirm before you go.

In a medical emergency, call 911.

At a glance

Advanced Heart Failure and Transplant CardiologyPrimary specialty
YesAccepts Medicare assignment
YesOffers telehealth
10Years since medical school (graduated 2016)
Medical University Of South Carolina College Of MedicineMedical school
MaleGender (as listed)
University of North Carolina at Chapel HillGroup practice (+1 more)

Quick answers

Which hospitals does William C. Mostertz Iii work at?
Medicare's official clinician data lists William C. Mostertz Iii at 5 hospitals: Cape Fear Valley Medical Center, Firsthealth Moore Regional Hospital, Southeastern Regional Medical Center, UNC Health Nash and UNC Hospitals. This is where the clinician works or has privileges; call the hospital to confirm.
Where does William C. Mostertz Iii see patients?
Medicare's clinician data lists 3 practice locations, including Chapel Hill, NC and Rocky Mount, NC. Call before your visit to confirm the address.
What is William C. Mostertz Iii's specialty?
Medicare lists Advanced Heart Failure and Transplant Cardiology as the primary specialty, and also Internal Medicine.
Does William C. Mostertz Iii accept Medicare assignment?
Yes. Medicare's clinician data says William C. Mostertz Iii accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of 2026-10-02. Ask the office to confirm before your visit.
Does William C. Mostertz Iii offer telehealth?
Medicare's clinician data says William C. Mostertz Iii offers telehealth services. Ask the office which visits can be done by video or phone.
What is the phone number for William C. Mostertz Iii?
(984) 974-1000, as listed in official Medicare / NPI Registry data.
What is William C. Mostertz Iii's NPI number?
1679928022. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Hospitals where William C. Mostertz Iii works

Medicare's Facility Affiliation Data lists William C. Mostertz Iii at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.

Practice locations

Addresses where William C. Mostertz Iii is enrolled with Medicare (CMS data updated 2026-10-02).

Group practices

Medicare enrollment lists William C. Mostertz Iii as a member of these groups (CMS data updated 2026-10-02).

  • University of North Carolina at Chapel Hill2,052 clinicians in the group
  • NHCS Physicians Inc97 clinicians in the group

Specialties

Find other Advanced Heart Failure and Transplant Cardiology doctors in North Carolina →

Other heart failure and transplant cardiologists in Chapel Hill

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

All heart failure and transplant cardiologists in Chapel Hill →

Clinician information

CredentialMD
Medical schoolMedical University Of South Carolina College Of Medicine
Graduation year2016
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
TelehealthOffers telehealth services
NPI (National Provider Identifier)1679928022
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 2026-10-02, retrieved 2026-10-29
  2. National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
  3. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  4. Medicare Care Compare — official Medicare tool to look up clinicians