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Family Practice

Francis X. Dennehy, MD

Works at hospitals in Front Royal, VA · Winchester, VA · Virginia

Summary

Dr. Francis X. Dennehy, MD is a family doctor at 351 Valley Health Way, Front Royal, VA 22630. Phone: (540) 636-0300. Accepts Medicare assignment. In 2024, Francis X. Dennehy had 28 Original Medicare patients and 50 services. NPI 1417925637. 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: Family doctor (Medicare lists Family Practice)
  • Address: 351 Valley Health Way, Front Royal, VA 22630 · Directions
  • Phone: (540) 636‑0300
  • Medicare: Accepts Medicare assignment
  • Hospitals: Warren Memorial Hospital, Winchester Medical Center
  • Group practice: Warren Memorial Hospital, Inc.
  • Medical school: Georgetown University School Of Medicine · graduated 1987 (39 years since medical school)
  • Gender (as listed): Male

From official Medicare data

This page shows what Medicare's official clinician data says about Francis X. Dennehy, 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 Francis X. Dennehy accept Medicare assignment?
Yes. Medicare's clinician data says Francis X. Dennehy 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 Francis X. Dennehy see?
In 2024, CMS data shows 28 Original Medicare patients and 50 services for Francis X. Dennehy. This counts Original Medicare only and measures volume, not quality.
What is Francis X. Dennehy's NPI number?
1417925637. 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 Francis X. Dennehy, 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 patients28
Services billed to Medicare50
Different services or procedures7
Participating Medicare providerYes
Average age of these patients80

Most frequent services

  1. Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)21 services
  2. Hospital discharge day management, more than 30 minutes (99239)11 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 disease64%
  • Chronic kidney disease61%
  • Arthritis57%
  • Heart failure57%

Hospitals where Francis X. Dennehy works

Medicare's Facility Affiliation Data lists Francis X. Dennehy 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.

  • Warren Memorial HospitalFront Royal, VA · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 490033
  • Winchester Medical CenterWinchester, VA · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 490005

Practice locations

Addresses where Francis X. Dennehy is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Francis X. Dennehy as a member of this group (CMS data updated October 2, 2026).

  • Warren Memorial Hospital, Inc.119 clinicians in the group

Specialties

Find other Family Practice doctors in Virginia →

Other family doctors in Front Royal

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

All family doctors in Front Royal →

Other clinicians in Warren Memorial Hospital, Inc.

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

Clinician information

CredentialMD
Medical schoolGeorgetown University School Of Medicine
Graduation year1987 (39 years since medical school)
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1417925637
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