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Family Practice

Gonzalo Madrigal, MD

Works at hospitals in Kenosha, WI · Oshkosh, WI · Wisconsin

Summary

Dr. Gonzalo Madrigal, MD is a family doctor at 855 N Westhaven Dr, Oshkosh, WI 54904. Phone: (920) 303-8700. Accepts Medicare assignment. In 2024, Gonzalo Madrigal had 49 Original Medicare patients and 185 services. NPI 1821550716. 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 Gonzalo Madrigal, 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 Gonzalo Madrigal accept Medicare assignment?
Yes. Medicare's clinician data says Gonzalo Madrigal 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 Gonzalo Madrigal see?
In 2024, CMS data shows 49 Original Medicare patients and 185 services for Gonzalo Madrigal. This counts Original Medicare only and measures volume, not quality.
What is Gonzalo Madrigal's NPI number?
1821550716. 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 Gonzalo Madrigal, 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 patients49
Services billed to Medicare185
Different services or procedures23
Participating Medicare providerYes
Average age of these patients69

Most frequent services

  1. Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)45 services
  2. Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)40 services
  3. Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit (G0439)12 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 cholesterol75%
  • High blood pressure71%
  • Chronic kidney disease45%
  • Arthritis43%
  • Diabetes31%
  • Anxiety29%

Hospitals where Gonzalo Madrigal works

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

Group practices

Medicare enrollment lists Gonzalo Madrigal as a member of this group (CMS data updated October 2, 2026).

  • Aurora Medical Group, Inc.3,813 clinicians in the group

Specialties

Find other Family Practice doctors in Wisconsin →

Other family doctors in Oshkosh

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

All family doctors in Oshkosh →

Other clinicians in Aurora Medical Group, Inc.

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

Clinician information

CredentialMD
Medical schoolPonce School Of Medicine
Graduation year2019 (7 years since medical school)
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1821550716
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