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

Emergency Medicine

Kathryn B. Leonard, MD

Sees patients in Saint Louis, MO · Missouri

Summary

Dr. Kathryn B. Leonard, MD is an emergency medicine doctor at 1 Childrens Pl, Suite C, Saint Louis, MO 63110. Phone: (314) 454-2104. Accepts Medicare assignment. NPI 1508179383. Source: CMS National Downloadable File, updated October 2, 2026.

  • Specialty: Emergency medicine doctor (Medicare lists Emergency Medicine)
  • Address: 1 Childrens Pl, Suite C, Saint Louis, MO 63110 · Directions
  • Phone: (314) 454‑2104
  • Medicare: Accepts Medicare assignment
  • Group practice: Washington University
  • Medical school: Saint Louis University School Of Medicine · graduated 2008 (18 years since medical school)
  • Gender (as listed): Female

From official Medicare data

This page shows what Medicare's official clinician data says about Kathryn B. Leonard, 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 Kathryn B. Leonard accept Medicare assignment?
Yes. Medicare's clinician data says Kathryn B. Leonard 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.
What is Kathryn B. Leonard's NPI number?
1508179383. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Practice locations

Addresses where Kathryn B. Leonard is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Kathryn B. Leonard as a member of this group (CMS data updated October 2, 2026).

  • Washington University3,029 clinicians in the group

Specialties

Find other Emergency Medicine doctors in Missouri →

Other emergency medicine doctors in Saint Louis

Clinicians with the same Medicare primary specialty in Saint Louis, MO — not a recommendation.

All emergency medicine doctors in Saint Louis →

Other clinicians in Washington University

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

Clinician information

CredentialMD
Medical schoolSaint Louis University School Of Medicine
Graduation year2008 (18 years since medical school)
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1508179383
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. National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
  2. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  3. Medicare Care Compare — official Medicare tool to look up clinicians