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

Critical Care (Intensivists)

Kristin P. Guilliams, MD

Sees patients in Saint Louis, MO · Missouri

Summary

Dr. Kristin P. Guilliams, MD is a critical care doctor at 1 Childrens Pl, Saint Louis, MO 63110. Phone: (314) 362-1408. Accepts Medicare assignment. NPI 1831376482. Source: CMS National Downloadable File, updated October 2, 2026.

  • Specialty: Critical care doctor (Medicare lists Critical Care (Intensivists))
  • Address: 1 Childrens Pl, Saint Louis, MO 63110 · Directions
  • Phone: (314) 362‑1408
  • Medicare: Accepts Medicare assignment
  • Group practice: Washington University
  • Medical school: University Of Virginia School Of Medicine · graduated 2006 (20 years since medical school)
  • Gender (as listed): Female

From official Medicare data

This page shows what Medicare's official clinician data says about Kristin P. Guilliams, 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 Kristin P. Guilliams accept Medicare assignment?
Yes. Medicare's clinician data says Kristin P. Guilliams 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 Kristin P. Guilliams's NPI number?
1831376482. 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 Kristin P. Guilliams is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Kristin P. Guilliams as a member of this group (CMS data updated October 2, 2026).

  • Washington University3,029 clinicians in the group

Specialties

Find other Critical Care (Intensivists) doctors in Missouri →

Other critical care doctors in Saint Louis

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

All critical care 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 schoolUniversity Of Virginia School Of Medicine
Graduation year2006 (20 years since medical school)
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1831376482
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