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Diagnostic Radiology

Cathy Zhou, MD

Works at hospitals in Portland, OR · Gresham, OR · Oregon

Summary

Dr. Cathy Zhou, MD is a radiologist at 10121 SE Sunnyside Rd, Suite 170, Clackamas, OR 97015. Phone: (877) 540-1614. Accepts Medicare assignment. In 2024, Cathy Zhou had 1,364 Original Medicare patients and 14,044 services. NPI 1477970564. 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 Cathy 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 Cathy Zhou accept Medicare assignment?
Yes. Medicare's clinician data says Cathy 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 Cathy Zhou see?
In 2024, CMS data shows 1,364 Original Medicare patients and 14,044 services for Cathy Zhou. This counts Original Medicare only and measures volume, not quality.
What is Cathy Zhou's NPI number?
1477970564. 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 Cathy 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 patients1,364
Services billed to Medicare14,044
Different services or procedures97
Participating Medicare providerYes
Average age of these patients73

Most frequent services

  1. Low osmolar contrast material, 300-399 mg/ml iodine concentration, per ml (Q9967)5,970 services
  2. Injection, gadoterate meglumine, 0.1 ml (A9575)4,217 services
  3. Screening 3d breast mammography (77063)664 services
  4. Screening mammography (77067)664 services
  5. Injection, triamcinolone acetonide, not otherwise specified, 10 mg (J3301)88 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 cholesterol62%
  • High blood pressure56%
  • Arthritis43%
  • Osteoporosis24%
  • Cancer (breast, colorectal, lung, prostate, endometrial or leukemia/lymphoma)20%
  • Depression19%

Hospitals where Cathy Zhou works

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

Group practices

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

  • Pacific Imaging Associates LLC76 clinicians in the group
  • TS Radiology Billings LLC15 clinicians in the group
  • Epic Imaging PC6 clinicians in the group

Specialties

Find other Diagnostic Radiology doctors in Oregon →

Other radiologists in Clackamas

Clinicians with the same Medicare primary specialty in Clackamas, OR — not a recommendation.

All radiologists in Clackamas →

Other clinicians in Pacific Imaging Associates LLC

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

Clinician information

CredentialMD
Medical schoolUniversity Of Texas Medical School At Houston
Graduation year2014 (12 years since medical school)
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1477970564
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