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Internal Medicine

Mark J. Zawodniak, MD

Works at hospitals in Morehead City, NC · North Carolina

Summary

Dr. Mark J. Zawodniak, MD is an internal medicine doctor at 3500 Arendell St, Morehead City, NC 28557. Phone: (252) 499-6000. Accepts Medicare assignment. In 2024, Mark J. Zawodniak had 130 Original Medicare patients and 334 services. NPI 1366411407. 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: Internal medicine doctor (Medicare lists Internal Medicine)
  • Address: 3500 Arendell St, Morehead City, NC 28557 · Directions
  • Phone: (252) 499‑6000
  • Medicare: Accepts Medicare assignment
  • Hospital: Carteret General Hospital
  • Group practice: Carteret County General Hospital Corporation
  • Medical school: University Of Illinois College Of Med (chi/peor/rock/chm-Urb) · graduated 1980 (46 years since medical school)
  • Gender (as listed): Male

From official Medicare data

This page shows what Medicare's official clinician data says about Mark J. Zawodniak, 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 Mark J. Zawodniak accept Medicare assignment?
Yes. Medicare's clinician data says Mark J. Zawodniak 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 Mark J. Zawodniak see?
In 2024, CMS data shows 130 Original Medicare patients and 334 services for Mark J. Zawodniak. This counts Original Medicare only and measures volume, not quality.
What is Mark J. Zawodniak's NPI number?
1366411407. 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 Mark J. Zawodniak, 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 patients130
Services billed to Medicare334
Different services or procedures7
Participating Medicare providerYes
Average age of these patients79

Most frequent services

  1. Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)160 services
  2. Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)144 services
  3. Hospital discharge day management, more than 30 minutes (99239)23 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%
  • Arthritis66%
  • Heart failure52%
  • Depression48%
  • Atrial fibrillation48%

Hospitals where Mark J. Zawodniak works

Medicare's Facility Affiliation Data lists Mark J. Zawodniak 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.

  • Carteret General HospitalMorehead City, NC · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 340142

Practice locations

Addresses where Mark J. Zawodniak is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Mark J. Zawodniak as a member of this group (CMS data updated October 2, 2026).

  • Carteret County General Hospital Corporation118 clinicians in the group

Specialties

Find other Internal Medicine doctors in North Carolina →

Other internal medicine doctors in Morehead City

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

All internal medicine doctors in Morehead City →

Other clinicians in Carteret County General Hospital Corporation

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

Clinician information

CredentialMD
Medical schoolUniversity Of Illinois College Of Med (chi/peor/rock/chm-Urb)
Graduation year1980 (46 years since medical school)
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1366411407
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