Lily Y. Zhang, MD

Medicare activity in 2024

Official CMS public-use data for Lily Y. Zhang, 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. Pathology examination of tissue using a microscope, intermediate complexity (88305)551 services
2. Special stained specimen slides to examine tissue, each additional procedure (88341)433 services
3. Special stained specimen slides to examine tissue, initial procedure (88342)163 services
4. Special stained specimen slides to examine tissue including interpretation and report (88313)99 services
5. Preparation of tissue for examination by removing any calcium present (88311)91 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%
• Arthritis58%
• Ischemic heart disease44%
• Chronic kidney disease42%
• Diabetes40%

Hospitals where Lily Y. Zhang works

Medicare's Facility Affiliation Data lists Lily Y. Zhang 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.

• Mercy Hospital SouthSaint Louis, MO · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 260077
• Mercy Hospital St LouisSaint Louis, MO · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 260020

Practice locations

Addresses where Lily Y. Zhang is enrolled with Medicare (CMS data updated October 2, 2026).

• 10010 Kennerly RdSaint Louis, MO 63128 (314) 525‑4768

Group practices

Medicare enrollment lists Lily Y. Zhang as a member of this group (CMS data updated October 2, 2026).

• Pathology Associates PC8 clinicians in the group

Specialties

• Pathologyprimary

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Other pathologists in Saint Louis

Clinicians with the same Medicare primary specialty in Saint Louis, MO — not a recommendation.

• Jon H. Ritter, MD
• Elise L. Krejci, MD
• Danielle M. Carpenter, MD
• Changqing Ma
• Kiran R. Vij, MD
• Deborah J. Veis, MD
• Grace Lee, MD
• Cody Weimholt, DO

All pathologists in Saint Louis →

Other clinicians in Pathology Associates PC

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

• Elise L. Krejci, MD
• Tara N. Evans, MD
• Emily S. Popovic, DO
• Ariel D. Wu, MD
• Anmaar Gazal, MD
• Evelyn R. Banks, 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