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Diagnostic Radiology

Hanna K. Liu, MD

Works at hospitals in Orange, CA · California

Summary

Dr. Hanna K. Liu, MD is a radiologist at 101 The City Dr S, Orange, CA 92868. Phone: (714) 456-7004. Accepts Medicare assignment. In 2024, Hanna K. Liu had 426 Original Medicare patients and 1,211 services. NPI 1255795092. 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: Radiologist (Medicare lists Diagnostic Radiology)
  • Address: 101 The City Dr S, Orange, CA 92868 · Directions
  • Phone: (714) 456‑7004
  • Medicare: Accepts Medicare assignment
  • Hospital: UCI Health-Orange
  • Group practice: UC Regents
  • Medical school: University Of California, Irvine, California College Of Medicine · graduated 2016 (10 years since medical school)
  • Gender (as listed): Female

From official Medicare data

This page shows what Medicare's official clinician data says about Hanna K. Liu, 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 Hanna K. Liu accept Medicare assignment?
Yes. Medicare's clinician data says Hanna K. Liu 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 Hanna K. Liu see?
In 2024, CMS data shows 426 Original Medicare patients and 1,211 services for Hanna K. Liu. This counts Original Medicare only and measures volume, not quality.
What is Hanna K. Liu's NPI number?
1255795092. 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 Hanna K. Liu, 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 patients426
Services billed to Medicare1,211
Different services or procedures23
Participating Medicare providerYes
Average age of these patients71

Most frequent services

  1. Screening mammography (77067)272 services
  2. Screening 3d breast mammography (77063)265 services
  3. Injection, gadobutrol, 0.1 ml (A9585)220 services
  4. Diagnostic digital breast tomosynthesis, unilateral or bilateral (list separately in addition to 77065 or 77066) (G0279)83 services
  5. Complete ultrasound scan of 1 breast (76641)71 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 pressure61%
  • Arthritis49%
  • Osteoporosis35%
  • Cancer (breast, colorectal, lung, prostate, endometrial or leukemia/lymphoma)29%
  • Diabetes24%

Hospitals where Hanna K. Liu works

Medicare's Facility Affiliation Data lists Hanna K. Liu 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.

  • UCI Health-OrangeOrange, CA · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 050348

Practice locations

Addresses where Hanna K. Liu is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Hanna K. Liu as a member of this group (CMS data updated October 2, 2026).

  • UC Regents108 clinicians in the group

Specialties

Find other Diagnostic Radiology doctors in California →

Other radiologists in Orange

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

All radiologists in Orange →

Other clinicians in UC Regents

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

Clinician information

CredentialMD
Medical schoolUniversity Of California, Irvine, California College Of Medicine
Graduation year2016 (10 years since medical school)
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1255795092
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