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Orthopedic Surgery

Chad T. Zehms, MD

Works at hospitals in Green Bay, WI · Wisconsin

Summary

Dr. Chad T. Zehms, MD is an orthopedic surgeon at 1160 Kepler Dr, Green Bay, WI 54311. Phone: (920) 288-5555. Accepts Medicare assignment. In 2024, Chad T. Zehms had 553 Original Medicare patients and 2,543 services. NPI 1770557571. 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.

  • Specialty: Orthopedic surgeon (Medicare lists Orthopedic Surgery)
  • Address: 1160 Kepler Dr, Green Bay, WI 54311 · Directions (3 more locations)
  • Phone: (920) 288‑5555
  • Medicare: Accepts Medicare assignment
  • Hospital: Aurora BayCare Medical Center
  • Group practice: BayCare Clinic LLP
  • Medical school: Medical College Of Wisconsin · graduated 2001 (25 years since medical school)
  • Gender (as listed): Male

From official Medicare data

This page shows what Medicare's official clinician data says about Chad T. Zehms, 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 Chad T. Zehms accept Medicare assignment?
Yes. Medicare's clinician data says Chad T. Zehms 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 Chad T. Zehms see?
In 2024, CMS data shows 553 Original Medicare patients and 2,543 services for Chad T. Zehms. This counts Original Medicare only and measures volume, not quality.
What is Chad T. Zehms's NPI number?
1770557571. 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 Chad T. Zehms, 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 patients553
Services billed to Medicare2,543
Different services or procedures84
Participating Medicare providerYes
Average age of these patients74

Most frequent services

  1. Injection, triamcinolone acetonide, not otherwise specified, 10 mg (J3301)823 services
  2. Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)411 services
  3. Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)255 services
  4. Aspiration and/or injection of fluid from large joint (20610)199 services
  5. New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)118 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%
  • Arthritis65%
  • Anxiety24%
  • Ischemic heart disease21%
  • Diabetes17%

Hospitals where Chad T. Zehms works

Medicare's Facility Affiliation Data lists Chad T. Zehms 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 Chad T. Zehms is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Chad T. Zehms as a member of this group (CMS data updated October 2, 2026).

  • BayCare Clinic LLP200 clinicians in the group

Specialties

Find other Orthopedic Surgery doctors in Wisconsin →

Other orthopedic surgeons in Green Bay

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

All orthopedic surgeons in Green Bay →

Other clinicians in BayCare Clinic LLP

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

Clinician information

CredentialMD
Medical schoolMedical College Of Wisconsin
Graduation year2001 (25 years since medical school)
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1770557571
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