Isidoro V. Zambrano, MD

Medicare activity in 2024

Official CMS public-use data for Isidoro V. Zambrano, 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.

Most frequent services

1. Aspiration and/or injection of fluid from large joint (20610)136 services
2. Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)130 services
3. X-ray of knee, 4 or more views (73564)104 services
4. X-ray of knee, 3 views (73562)90 services
5. Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more (99212)89 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 pressure70%
• High cholesterol69%
• Arthritis67%
• Diabetes28%
• Depression24%
• Anxiety24%

Hospitals where Isidoro V. Zambrano works

Medicare's Facility Affiliation Data lists Isidoro V. Zambrano 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.

• Fort Memorial HospitalFort Atkinson, WI · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 520071

Practice locations

Addresses where Isidoro V. Zambrano is enrolled with Medicare (CMS data updated October 2, 2026).

• 1504 Madison AveFort Atkinson, WI 53538 (920) 563‑7888

Group practices

Medicare enrollment lists Isidoro V. Zambrano as a member of this group (CMS data updated October 2, 2026).

• Fort Healthcare Inc155 clinicians in the group

Specialties

• Orthopedic Surgeryprimary

Find other Orthopedic Surgery doctors in Wisconsin →

Other orthopedic surgeons in Wisconsin

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

• Paul W. Schuppner, DO
• Matthew S. Bliss, MD
• Brian P. Bye, MD
• Michael Nolte
• Shawn E. Schoch, MD
• Scott A. Kuzma, MD
• Steven J. Schechinger, MD
• Brian J. Donahue, MD

All orthopedic surgeons in Wisconsin →

Other clinicians in Fort Healthcare Inc

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

• Jeffrey A. Cichocki
• Ashleigh Douglas, CNA
• Amy Dunbar, MD
• Gislaine E. Tsemo, MD
• Bradley T. Wagner, CNA
• Michael R. Anderson, MD

Clinician information

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