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

Family Practice

Kent B. Hartung, MD

Sees patients in Fond Du Lac, WI · Wisconsin

Summary

Dr. Kent B. Hartung, MD is a family doctor at 145 N Main St, Fond Du Lac, WI 54935. Phone: (920) 926-8722. Accepts Medicare assignment. In 2024, Kent B. Hartung had 248 Original Medicare patients and 335 services. NPI 1417925595. Source: CMS National Downloadable File, updated October 2, 2026; CMS Medicare Physician & Other Practitioners, data year 2024.

  • Specialty: Family doctor (Medicare lists Family Practice)
  • Address: 145 N Main St, Fond Du Lac, WI 54935 · Directions
  • Phone: (920) 926‑8722
  • Medicare: Accepts Medicare assignment
  • Group practice: Agnesian Healthcare Inc
  • Medical school: University Of Iowa, Rj & L Carver College Of Medicine · graduated 1982 (44 years since medical school)
  • Gender (as listed): Male

From official Medicare data

This page shows what Medicare's official clinician data says about Kent B. Hartung, 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 Kent B. Hartung accept Medicare assignment?
Yes. Medicare's clinician data says Kent B. Hartung 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 Kent B. Hartung see?
In 2024, CMS data shows 248 Original Medicare patients and 335 services for Kent B. Hartung. This counts Original Medicare only and measures volume, not quality.
What is Kent B. Hartung's NPI number?
1417925595. 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 Kent B. Hartung, 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 patients248
Services billed to Medicare335
Different services or procedures29
Participating Medicare providerYes
Average age of these patients72

Most frequent services

  1. Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)203 services
  2. Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)34 services
  3. Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more (99212)23 services
  4. X-ray of chest, 2 views (71046)15 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 cholesterol73%
  • High blood pressure65%
  • Arthritis41%
  • Diabetes24%
  • Chronic kidney disease23%
  • Ischemic heart disease21%

Practice locations

Addresses where Kent B. Hartung is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Kent B. Hartung as a member of this group (CMS data updated October 2, 2026).

  • Agnesian Healthcare Inc388 clinicians in the group

Specialties

Find other Family Practice doctors in Wisconsin →

Other family doctors in Fond Du Lac

Clinicians with the same Medicare primary specialty in Fond Du Lac, WI — not a recommendation.

All family doctors in Fond Du Lac →

Other clinicians in Agnesian Healthcare Inc

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

Clinician information

CredentialMD
Medical schoolUniversity Of Iowa, Rj & L Carver College Of Medicine
Graduation year1982 (44 years since medical school)
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1417925595
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. National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
  2. Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
  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