Medical emergency?Emergency? Call 911. Nearest emergency roomsNearest ERs

Pathology

Marcus R. Winkler, DO

Works at hospitals in Cherokee, NC · Bryson City, NC · Sylva, NC … · North Carolina

Summary

Dr. Marcus R. Winkler, DO is a pathologist at 509 Biltmore Ave, Asheville, NC 28801. Phone: (828) 213-1111. Accepts Medicare assignment. In 2024, Marcus R. Winkler had 1,468 Original Medicare patients and 3,640 services. NPI 1538449848. 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.

From official Medicare data

This page shows what Medicare's official clinician data says about Marcus R. Winkler, 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 Marcus R. Winkler accept Medicare assignment?
Yes. Medicare's clinician data says Marcus R. Winkler 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 Marcus R. Winkler see?
In 2024, CMS data shows 1,468 Original Medicare patients and 3,640 services for Marcus R. Winkler. This counts Original Medicare only and measures volume, not quality.
What is Marcus R. Winkler's NPI number?
1538449848. 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 Marcus R. Winkler, 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 patients1,468
Services billed to Medicare3,640
Different services or procedures28
Participating Medicare providerYes
Average age of these patients74

Most frequent services

  1. Pathology examination of tissue using a microscope, intermediate complexity (88305)1,698 services
  2. Special stained specimen slides to examine tissue, each additional procedure (88341)427 services
  3. Pathology examination of tissue using a microscope, moderately low complexity (88304)209 services
  4. Special stained specimen slides to examine tissue, initial procedure (88342)209 services
  5. Pathology examination of tissue using a microscope, moderately high complexity (88307)172 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 cholesterol72%
  • Arthritis41%
  • Diabetes30%
  • Anxiety25%
  • Chronic kidney disease23%

Hospitals where Marcus R. Winkler works

Medicare's Facility Affiliation Data lists Marcus R. Winkler 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 Marcus R. Winkler is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Marcus R. Winkler as a member of this group (CMS data updated October 2, 2026).

  • Mountain Area Pathology PA13 clinicians in the group

Specialties

Find other Pathology doctors in North Carolina →

Other pathologists in Asheville

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

All pathologists in Asheville →

Other clinicians in Mountain Area Pathology PA

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

Clinician information

CredentialDO
Medical schoolLincoln Mem Univ, Debusk Col Of Osteopathic Med
Graduation year2011 (15 years since medical school)
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1538449848
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