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Ophthalmology

Xiao Yi Zhou, MD

Works at hospitals in Chicago, IL · Illinois

Summary

Dr. Xiao Yi Zhou, MD is an ophthalmologist at 5841 S Maryland Ave, Chicago, IL 60637. Phone: (773) 702-1000. Accepts Medicare assignment. In 2024, Xiao Yi Zhou had 109 Original Medicare patients and 259 services. NPI 1578057543. 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: Ophthalmologist (Medicare lists Ophthalmology)
  • Address: 5841 S Maryland Ave, Chicago, IL 60637 · Directions
  • Phone: (773) 702‑1000
  • Medicare: Accepts Medicare assignment
  • Hospital: The University of Chicago Medical Center
  • Group practice: University of Chicago (+1 more)
  • Medical school: Wayne State University School Of Medicine · graduated 2017 (9 years since medical school)
  • Gender (as listed): Female

From official Medicare data

This page shows what Medicare's official clinician data says about Xiao Yi Zhou, 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 Xiao Yi Zhou accept Medicare assignment?
Yes. Medicare's clinician data says Xiao Yi Zhou 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 Xiao Yi Zhou see?
In 2024, CMS data shows 109 Original Medicare patients and 259 services for Xiao Yi Zhou. This counts Original Medicare only and measures volume, not quality.
What is Xiao Yi Zhou's NPI number?
1578057543. 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 Xiao Yi Zhou, 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 patients109
Services billed to Medicare259
Different services or procedures24
Participating Medicare providerYes
Average age of these patients72

Most frequent services

  1. Imaging of retina (92134)50 services
  2. Photography of the retina (92250)45 services
  3. New patient complete exam of visual system (92004)31 services
  4. Established patient complete exam of visual system (92014)29 services
  5. Removal of eye fluid (vitreous) between lens and retina (67036)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 blood pressure75%
  • High cholesterol70%
  • Arthritis48%
  • Diabetes47%
  • Chronic kidney disease33%
  • Ischemic heart disease27%

Hospitals where Xiao Yi Zhou works

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

Group practices

Medicare enrollment lists Xiao Yi Zhou as a member of these groups (CMS data updated October 2, 2026).

  • University of Chicago1,712 clinicians in the group
  • The University of Chicago Medical Center915 clinicians in the group

Specialties

Find other Ophthalmology doctors in Illinois →

Other ophthalmologists in Chicago

Clinicians with the same Medicare primary specialty in Chicago, IL — not a recommendation.

All ophthalmologists in Chicago →

Other clinicians in University of Chicago

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

Clinician information

CredentialMD
Medical schoolWayne State University School Of Medicine
Graduation year2017 (9 years since medical school)
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1578057543
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