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Emergency Medicine

Mei Ling Liu, MD

Works at hospitals in Philadelphia, PA · Pennsylvania

Summary

Dr. Mei Ling Liu, MD is an emergency medicine doctor at 3400 Spruce St, Philadelphia, PA 19104. Phone: (215) 662-6698. Accepts Medicare assignment. In 2024, Mei Ling Liu had 231 Original Medicare patients and 261 services. NPI 1255727590. 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: Emergency medicine doctor (Medicare lists Emergency Medicine)
  • Address: 3400 Spruce St, Philadelphia, PA 19104 · Directions (1 more location)
  • Phone: (215) 662‑6698
  • Medicare: Accepts Medicare assignment
  • Hospital: Hospital of University of Pennsylvania
  • Group practice: University of Penn - Medical Group
  • Medical school: University Of Michigan Medical School · graduated 2015 (11 years since medical school)
  • Gender (as listed): Female

From official Medicare data

This page shows what Medicare's official clinician data says about Mei Ling 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 Mei Ling Liu accept Medicare assignment?
Yes. Medicare's clinician data says Mei Ling 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 Mei Ling Liu see?
In 2024, CMS data shows 231 Original Medicare patients and 261 services for Mei Ling Liu. This counts Original Medicare only and measures volume, not quality.
What is Mei Ling Liu's NPI number?
1255727590. 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 Mei Ling 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 patients231
Services billed to Medicare261
Different services or procedures17
Participating Medicare providerYes
Average age of these patients67

Most frequent services

  1. Emergency department visit with high level of medical decision making (99285)137 services
  2. Emergency department visit with moderate level of medical decision making (99284)67 services
  3. Critical care, first 30-74 minutes (99291)15 services
  4. Emergency department visit with low level of medical decision making (99283)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 cholesterol73%
  • Arthritis48%
  • Chronic kidney disease47%
  • Diabetes45%
  • Depression44%

Hospitals where Mei Ling Liu works

Medicare's Facility Affiliation Data lists Mei Ling 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.

Practice locations

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

Group practices

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

  • University of Penn - Medical Group3,505 clinicians in the group

Specialties

Find other Emergency Medicine doctors in Pennsylvania →

Other emergency medicine doctors in Philadelphia

Clinicians with the same Medicare primary specialty in Philadelphia, PA — not a recommendation.

All emergency medicine doctors in Philadelphia →

Other clinicians in University of Penn - Medical Group

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

Clinician information

CredentialMD
Medical schoolUniversity Of Michigan Medical School
Graduation year2015 (11 years since medical school)
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1255727590
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