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Thoracic Surgery

Kathleen R. Petro, MD

Works at hospitals in Alexandria, VA · Falls Church, VA · Leesburg, VA … · Virginia

Summary

Dr. Kathleen R. Petro, MD is a thoracic surgeon at 3300 Gallows Rd, Falls Church, VA 22042. Phone: (703) 776-4001. Accepts Medicare assignment. In 2024, Kathleen R. Petro had 86 Original Medicare patients and 293 services. NPI 1659395739. 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 Kathleen R. Petro, 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 Kathleen R. Petro accept Medicare assignment?
Yes. Medicare's clinician data says Kathleen R. Petro 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 Kathleen R. Petro see?
In 2024, CMS data shows 86 Original Medicare patients and 293 services for Kathleen R. Petro. This counts Original Medicare only and measures volume, not quality.
What is Kathleen R. Petro's NPI number?
1659395739. 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 Kathleen R. Petro, 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 patients86
Services billed to Medicare293
Different services or procedures35
Participating Medicare providerYes
Average age of these patients74

Most frequent services

  1. Harvest of vein using an endoscope (33508)68 services
  2. Coronary artery bypass using artery graft, 1 graft (33533)40 services
  3. Harvest of artery from arm for heart bypass graft using an endoscope (33509)32 services
  4. Coronary artery bypass using vein or artery graft, 1 graft (33517)30 services
  5. Coronary artery bypass using vein or artery graft, 2 grafts (33518)29 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 disease75%
  • Arthritis55%
  • Heart failure51%
  • Atrial fibrillation50%

Hospitals where Kathleen R. Petro works

Medicare's Facility Affiliation Data lists Kathleen R. Petro 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 Kathleen R. Petro is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Kathleen R. Petro as a member of this group (CMS data updated October 2, 2026).

  • Inova Health Care Services1,817 clinicians in the group

Specialties

Find other Thoracic Surgery doctors in Virginia →

Other thoracic surgeons in Falls Church

Clinicians with the same Medicare primary specialty in Falls Church, VA — not a recommendation.

All thoracic surgeons in Falls Church →

Other clinicians in Inova Health Care Services

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

Clinician information

CredentialMD
Medical schoolHahnemann University College Of Medicine
Graduation year1993 (33 years since medical school)
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1659395739
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