Ziwen Guo, MD

Medicare activity in 2024

Official CMS public-use data for Ziwen Guo, 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. Special stained specimen slides to examine tissue, each additional procedure (88341)818 services
2. Pathology examination of tissue using a microscope, intermediate complexity (88305)433 services
3. Special stained specimen slides to examine tissue, initial procedure (88342)173 services
4. Pathology examination of tissue using a microscope, moderately high complexity (88307)66 services
5. Special stained specimen slides to examine tissue including interpretation and report (88313)45 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 pressure74%
• Arthritis42%
• Ischemic heart disease28%
• Diabetes27%
• Anxiety27%

Hospitals where Ziwen Guo works

Medicare's Facility Affiliation Data lists Ziwen Guo 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.

• Bellin Health Oconto HospitalOconto, WI · Critical Access Hospital · Emergency services: listed by Medicare · CCN 521356
• Bellin Memorial HospitalGreen Bay, WI · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 520049

Practice locations

Addresses where Ziwen Guo is enrolled with Medicare (CMS data updated October 2, 2026).

• 744 S Webster AveGreen Bay, WI 54301

Group practices

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

• Pathology Consultants of Green Bay SC6 clinicians in the group

Specialties

• Pathologyprimary

Find other Pathology doctors in Wisconsin →

Other pathologists in Green Bay

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

• Robert T. Cutlan, MD
• Omeed Hafez, MD
• Eugeni T. Kouzov, MD
• Adam Kuten, MD
• Xiaomin Zheng, MD
• Denise A. Kennedy, MD
• Nathanial I. Kieler, MD
• Oliver W. Graf, MD

All pathologists in Green Bay →

Other clinicians in Pathology Consultants of Green Bay SC

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

• Omeed Hafez, MD
• Denise A. Kennedy, MD
• Xiaomin Zheng, MD
• Jiaxin Cai, 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