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Family Practice

Timothy J. Wirtz, DO

Works at hospitals in Rhinelander, WI · Wisconsin Rapids, WI · Stevens Point, WI … · Wisconsin

Summary

Dr. Timothy J. Wirtz, DO is a family doctor at 2401 Plover Rd, Plover, WI 54467. Phone: (715) 295-3800. Accepts Medicare assignment. In 2024, Timothy J. Wirtz had 92 Original Medicare patients and 249 services. NPI 1134277833. 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 Timothy J. Wirtz, 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 Timothy J. Wirtz accept Medicare assignment?
Yes. Medicare's clinician data says Timothy J. Wirtz 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 Timothy J. Wirtz see?
In 2024, CMS data shows 92 Original Medicare patients and 249 services for Timothy J. Wirtz. This counts Original Medicare only and measures volume, not quality.
What is Timothy J. Wirtz's NPI number?
1134277833. 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 Timothy J. Wirtz, 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 patients92
Services billed to Medicare249
Different services or procedures29
Participating Medicare providerYes
Average age of these patients74

Most frequent services

  1. Hemoglobin a1c level (83036)25 services
  2. Screening 3d breast mammography (77063)21 services
  3. Screening mammography (77067)21 services
  4. Blood test, basic group of blood chemicals (calcium, total) (80048)21 services
  5. Blood test, lipids (cholesterol and triglycerides) (80061)20 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%
  • Diabetes34%
  • Arthritis33%
  • Chronic kidney disease23%
  • Ischemic heart disease22%

Hospitals where Timothy J. Wirtz works

Medicare's Facility Affiliation Data lists Timothy J. Wirtz 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 Timothy J. Wirtz is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

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

  • Aspirus Rhinelander and Tomahawk Hospitals and Clinics, Inc.574 clinicians in the group

Specialties

Find other Family Practice doctors in Wisconsin →

Other family doctors in Wisconsin

Clinicians with the same Medicare primary specialty in Wisconsin — not a recommendation.

All family doctors in Wisconsin →

Other clinicians in Aspirus Rhinelander and Tomahawk Hospitals and Clinics, Inc.

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

Clinician information

CredentialDO
Medical schoolAt Still University Of Health Sciences, College Of Osteo Med, Kirksville
Graduation year1989 (37 years since medical school)
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1134277833
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