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Critical Care (Intensivists)

Leonard L. Comeau, MD

Sees patients in Hartford, CT · Connecticut

Summary

Leonard L. Comeau, MD (Critical Care (Intensivists)) is enrolled with Medicare at 1 practice location in Hartford, CT. NPI 1407828197. Medicare data says the clinician accepts Medicare assignment. Source: CMS National Downloadable File, updated 2026-10-02.

From official Medicare data

This page shows what Medicare's official clinician data says about Leonard L. Comeau, 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
35Years since medical school (graduated 1991)
Warren Alpert Medical School Of Brown UniversityMedical school
MaleGender (as listed)
Connecticut Children's Specialty Group, IncGroup practice

Quick answers

Where does Leonard L. Comeau see patients?
Medicare's clinician data lists 1 practice location in Hartford, CT. Call before your visit to confirm the address.
What is Leonard L. Comeau's specialty?
Medicare lists Critical Care (Intensivists) as the primary specialty.
Does Leonard L. Comeau accept Medicare assignment?
Yes. Medicare's clinician data says Leonard L. Comeau 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.
What is the phone number for Leonard L. Comeau?
(860) 545-9000, as listed in official Medicare / NPI Registry data.
What is Leonard L. Comeau's NPI number?
1407828197. 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 Leonard L. Comeau is enrolled with Medicare (CMS data updated 2026-10-02).

Group practices

Medicare enrollment lists Leonard L. Comeau as a member of this group (CMS data updated 2026-10-02).

  • Connecticut Children's Specialty Group, Inc137 clinicians in the group

Specialties

Find other Critical Care (Intensivists) doctors in Connecticut →

Other critical care doctors in Hartford

Clinicians with the same Medicare primary specialty in Hartford, CT — not a recommendation.

All critical care doctors in Hartford →

Clinician information

CredentialMD
Medical schoolWarren Alpert Medical School Of Brown University
Graduation year1991
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1407828197
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 2026-10-02, retrieved 2026-10-29
  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