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General Surgery

Pak Shan P. Leung, MD

Works at hospitals in Philadelphia, PA · Pennsylvania

Summary

Dr. Pak Shan P. Leung, MD is a general surgeon at 100 Market St, Suite 300, Collegeville, PA 19426. Phone: (484) 622-6400. Accepts Medicare assignment. In 2024, Pak Shan P. Leung had 131 Original Medicare patients and 259 services. NPI 1619136587. 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 Pak Shan P. Leung, 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 Pak Shan P. Leung accept Medicare assignment?
Yes. Medicare's clinician data says Pak Shan P. Leung 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 Pak Shan P. Leung see?
In 2024, CMS data shows 131 Original Medicare patients and 259 services for Pak Shan P. Leung. This counts Original Medicare only and measures volume, not quality.
What is Pak Shan P. Leung's NPI number?
1619136587. 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 Pak Shan P. Leung, 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 patients131
Services billed to Medicare259
Different services or procedures31
Participating Medicare providerYes
Average age of these patients71

Most frequent services

  1. Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)120 services
  2. Critical care, first 30-74 minutes (99291)57 services
  3. Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)20 services
  4. Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)16 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%
  • Ischemic heart disease59%
  • Diabetes56%
  • Arthritis54%
  • Chronic kidney disease54%

Hospitals where Pak Shan P. Leung works

Medicare's Facility Affiliation Data lists Pak Shan P. Leung 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 Pak Shan P. Leung is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Pak Shan P. Leung as a member of this group (CMS data updated October 2, 2026).

  • Einstein Practice Plan Inc794 clinicians in the group

Specialties

Find other General Surgery doctors in Pennsylvania →

Other general surgeons in Pennsylvania

Clinicians with the same Medicare primary specialty in Pennsylvania — not a recommendation.

All general surgeons in Pennsylvania →

Other clinicians in Einstein Practice Plan Inc

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

Clinician information

CredentialMD
Medical schoolBoston University School Of Medicine
Graduation year2007 (19 years since medical school)
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1619136587
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