Medical emergency?Emergency? Call 911. Nearest emergency roomsNearest ERs

Pathology

Janna J. Kelleher, MD

Works at hospitals in Fairfax, VA · Falls Church, VA · Leesburg, VA · Virginia

Summary

Dr. Janna J. Kelleher, MD is a pathologist at 2501 Parkers Ln, Alexandria, VA 22306. Phone: (703) 664-7000. Accepts Medicare assignment. In 2024, Janna J. Kelleher had 602 Original Medicare patients and 1,909 services. NPI 1659574663. 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 Janna J. Kelleher, 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 Janna J. Kelleher accept Medicare assignment?
Yes. Medicare's clinician data says Janna J. Kelleher 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 Janna J. Kelleher see?
In 2024, CMS data shows 602 Original Medicare patients and 1,909 services for Janna J. Kelleher. This counts Original Medicare only and measures volume, not quality.
What is Janna J. Kelleher's NPI number?
1659574663. 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 Janna J. Kelleher, 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 patients602
Services billed to Medicare1,909
Different services or procedures29
Participating Medicare providerYes
Average age of these patients74

Most frequent services

  1. Pathology examination of tissue using a microscope, intermediate complexity (88305)1,190 services
  2. Special stained specimen slides to examine tissue, each additional procedure (88341)145 services
  3. Special stained specimen slides to examine tissue, initial procedure (88342)130 services
  4. Cell examination of specimen, selective cellular enhancement technique (88112)63 services
  5. Special stained specimen slides to examine tissue, each multiplex procedure (88344)61 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%
  • Arthritis53%
  • Ischemic heart disease31%
  • Diabetes30%
  • Cancer (breast, colorectal, lung, prostate, endometrial or leukemia/lymphoma)26%

Hospitals where Janna J. Kelleher works

Medicare's Facility Affiliation Data lists Janna J. Kelleher 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.

  • Inova Fair Oaks HospitalFairfax, VA · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: not listed by Medicare · CCN 490101
  • Inova Fairfax HospitalFalls Church, VA · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 490063
  • Inova Loudoun HospitalLeesburg, VA · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 490043

Practice locations

Addresses where Janna J. Kelleher is enrolled with Medicare (CMS data updated October 2, 2026). The first 5 of 6; the Medicare profile lists all.

Group practices

Medicare enrollment lists Janna J. Kelleher as a member of this group (CMS data updated October 2, 2026).

  • Inova Health Care Services - Pathology49 clinicians in the group

Specialties

Find other Pathology doctors in Virginia →

Other pathologists in Alexandria

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

All pathologists in Alexandria →

Other clinicians in Inova Health Care Services - Pathology

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

Clinician information

CredentialMD
Medical schoolUniversity Of Tennessee, Hsc, College Of Medicine
Graduation year2002 (24 years since medical school)
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1659574663
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