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Critical Care (Intensivists)

Katherine Cox-Flaherty, MD

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

Summary

Katherine Cox-Flaherty, MD (Critical Care (Intensivists)) is listed by Medicare at 5 hospitals in Alexandria, VA, Fairfax, VA and Falls Church, VA and other places. NPI 1427476290. Medicare data says the clinician accepts Medicare assignment. Source: CMS Facility Affiliation Data, updated 2026-10-02.

From official Medicare data

This page shows what Medicare's official clinician data says about Katherine Cox-Flaherty, joined by NPI number (data updated 2026-10-02). It is not a recommendation or a rating. Call the office or hospital to confirm before you go.

In a medical emergency, call 911.

At a glance

Critical Care (Intensivists)Primary specialty
YesAccepts Medicare assignment
YesOffers telehealth
12Years since medical school (graduated 2014)
George Washington University School Of MedicineMedical school
FemaleGender (as listed)
Inova Health Care ServicesGroup practice

Quick answers

Which hospitals does Katherine Cox-Flaherty work at?
Medicare's official clinician data lists Katherine Cox-Flaherty at 5 hospitals: Inova Alexandria Hospital, Inova Fair Oaks Hospital, Inova Fairfax Hospital, Inova Loudoun Hospital and Inova Mount Vernon Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
Where does Katherine Cox-Flaherty see patients?
Medicare's clinician data lists 2 practice locations, including Woodbridge, VA and Fairfax, VA. Call before your visit to confirm the address.
What is Katherine Cox-Flaherty's specialty?
Medicare lists Critical Care (Intensivists) as the primary specialty, and also Internal Medicine and Pulmonary Disease.
Does Katherine Cox-Flaherty accept Medicare assignment?
Yes. Medicare's clinician data says Katherine Cox-Flaherty accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of 2026-10-02. Ask the office to confirm before your visit.
Does Katherine Cox-Flaherty offer telehealth?
Medicare's clinician data says Katherine Cox-Flaherty offers telehealth services. Ask the office which visits can be done by video or phone.
What is the phone number for Katherine Cox-Flaherty?
(571) 472-8760, as listed in official Medicare / NPI Registry data.
What is Katherine Cox-Flaherty's NPI number?
1427476290. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Hospitals where Katherine Cox-Flaherty works

Medicare's Facility Affiliation Data lists Katherine Cox-Flaherty at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.

Practice locations

Addresses where Katherine Cox-Flaherty is enrolled with Medicare (CMS data updated 2026-10-02).

Group practices

Medicare enrollment lists Katherine Cox-Flaherty as a member of this group (CMS data updated 2026-10-02).

  • Inova Health Care Services1,817 clinicians in the group

Specialties

Find other Critical Care (Intensivists) doctors in Virginia →

Other critical care doctors in Woodbridge

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

All critical care doctors in Woodbridge →

Clinician information

CredentialMD
Medical schoolGeorge Washington University School Of Medicine
Graduation year2014
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
TelehealthOffers telehealth services
NPI (National Provider Identifier)1427476290
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 2026-10-02, retrieved 2026-10-29
  2. National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
  3. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  4. Medicare Care Compare — official Medicare tool to look up clinicians