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Diagnostic Radiology

Eva Y. Chan, MD

Works at hospitals in Modesto, CA · Auburn, CA · Davis, CA … · California

Summary

Dr. Eva Y. Chan, MD is a radiologist at 1 Medical Plaza Dr, Roseville, CA 95661. Phone: (916) 454-6868. Accepts Medicare assignment. In 2024, Eva Y. Chan had 1,596 Original Medicare patients and 2,346 services. NPI 1134380280. 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 Eva Y. Chan, 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 Eva Y. Chan accept Medicare assignment?
Yes. Medicare's clinician data says Eva Y. Chan 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 Eva Y. Chan see?
In 2024, CMS data shows 1,596 Original Medicare patients and 2,346 services for Eva Y. Chan. This counts Original Medicare only and measures volume, not quality.
What is Eva Y. Chan's NPI number?
1134380280. 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 Eva Y. Chan, 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 patients1,596
Services billed to Medicare2,346
Different services or procedures74
Participating Medicare providerYes
Average age of these patients74

Most frequent services

  1. X-ray of chest, 1 view (71045)476 services
  2. Ct scan of abdomen and pelvis with contrast (74177)275 services
  3. Ct scan of blood vessels of chest with contrast (71275)166 services
  4. Ct scan of abdomen and pelvis without contrast (74176)153 services
  5. Ultrasound study of arm or leg veins with compression and maneuvers (93970)97 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%
  • Chronic kidney disease47%
  • Diabetes45%
  • Ischemic heart disease43%

Hospitals where Eva Y. Chan works

Medicare's Facility Affiliation Data lists Eva Y. Chan 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 Eva Y. Chan is enrolled with Medicare (CMS data updated October 2, 2026). The first 5 of 20; the Medicare profile lists all.

Group practices

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

  • Sutter Valley Medical Foundation2,500 clinicians in the group

Specialties

Find other Diagnostic Radiology doctors in California →

Other radiologists in Roseville

Clinicians with the same Medicare primary specialty in Roseville, CA — not a recommendation.

All radiologists in Roseville →

Other clinicians in Sutter Valley Medical Foundation

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

Clinician information

CredentialMD
Medical schoolLoma Linda University School Of Medicine
Graduation year2004 (22 years since medical school)
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1134380280
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