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General Surgery

Ben L. Zarzaur, MD

Works at hospitals in Madison, WI · Wisconsin

Summary

Dr. Ben L. Zarzaur, MD is a general surgeon at 600 Highland Ave, Madison, WI 53792. Phone: (608) 263-6400. Accepts Medicare assignment. In 2024, Ben L. Zarzaur had 179 Original Medicare patients and 347 services. NPI 1396795704. 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 Ben L. Zarzaur, 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 Ben L. Zarzaur accept Medicare assignment?
Yes. Medicare's clinician data says Ben L. Zarzaur 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 Ben L. Zarzaur see?
In 2024, CMS data shows 179 Original Medicare patients and 347 services for Ben L. Zarzaur. This counts Original Medicare only and measures volume, not quality.
What is Ben L. Zarzaur's NPI number?
1396795704. 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 Ben L. Zarzaur, 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 patients179
Services billed to Medicare347
Different services or procedures31
Participating Medicare providerYes
Average age of these patients74

Most frequent services

  1. Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)158 services
  2. Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)48 services
  3. Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes (99231)32 services
  4. Emergency department visit with low level of medical decision making (99283)17 services
  5. Emergency department visit with moderate level of medical decision making (99284)11 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%
  • Arthritis52%
  • Atrial fibrillation41%
  • Chronic kidney disease40%
  • Heart failure40%

Hospitals where Ben L. Zarzaur works

Medicare's Facility Affiliation Data lists Ben L. Zarzaur 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 Ben L. Zarzaur is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Ben L. Zarzaur as a member of this group (CMS data updated October 2, 2026).

  • University of Wisconsin Medical Foundation Inc2,553 clinicians in the group

Specialties

Find other General Surgery doctors in Wisconsin →

Other general surgeons in Madison

Clinicians with the same Medicare primary specialty in Madison, WI — not a recommendation.

All general surgeons in Madison →

Other clinicians in University of Wisconsin Medical Foundation Inc

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

Clinician information

CredentialMD
Medical schoolUniversity Of Alabama School Of Medicine
Graduation year1996 (30 years since medical school)
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1396795704
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