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Pulmonary Disease

Karen C. Shen, MD

Works at hospitals in Dallas, TX · Mansfield, TX · Southlake, TX … · Texas

Summary

Dr. Karen C. Shen, MD is a pulmonologist at 221 W Colorado Blvd, Suite 525, Dallas, TX 75208. Accepts Medicare assignment. In 2024, Karen C. Shen had 122 Original Medicare patients and 278 services. NPI 1467973784. 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 Karen C. Shen, 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 Karen C. Shen accept Medicare assignment?
Yes. Medicare's clinician data says Karen C. Shen 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 Karen C. Shen see?
In 2024, CMS data shows 122 Original Medicare patients and 278 services for Karen C. Shen. This counts Original Medicare only and measures volume, not quality.
What is Karen C. Shen's NPI number?
1467973784. 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 Karen C. Shen, 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 patients122
Services billed to Medicare278
Different services or procedures21
Participating Medicare providerYes
Average age of these patients76

Most frequent services

  1. Critical care, first 30-74 minutes (99291)150 services
  2. Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)67 services
  3. Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)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 cholesterol75%
  • Heart failure57%
  • Arthritis56%
  • Chronic kidney disease56%
  • Diabetes54%

Hospitals where Karen C. Shen works

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

  • 221 W Colorado Blvd, Suite 525Dallas, TX 75208

Group practices

Medicare enrollment lists Karen C. Shen as a member of this group (CMS data updated October 2, 2026).

  • Dallas Pulmonary and Critical Care PA182 clinicians in the group

Specialties

Find other Pulmonary Disease doctors in Texas →

Other pulmonologists in Dallas

Clinicians with the same Medicare primary specialty in Dallas, TX — not a recommendation.

All pulmonologists in Dallas →

Other clinicians in Dallas Pulmonary and Critical Care PA

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

Clinician information

CredentialMD
Medical schoolWashington University School Of Medicine
Graduation year2017 (9 years since medical school)
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1467973784
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