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Anesthesiology

Leo M. Contois, MD

Works at hospitals in Farmington, CT · Connecticut

Summary

Dr. Leo M. Contois, MD is an anesthesiologist at 80 Semour St, Hartford, CT 06106. Phone: (860) 972-2117. Accepts Medicare assignment. In 2024, Leo M. Contois had 220 Original Medicare patients and 250 services. NPI 1295785905. 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: Anesthesiologist (Medicare lists Anesthesiology)
  • Address: 80 Semour St, Hartford, CT 06106 · Directions
  • Phone: (860) 972‑2117
  • Medicare: Accepts Medicare assignment
  • Hospital: John Dempsey Hospital of the University of Connect
  • Group practice: Integrated Anesthesia Associates LLC
  • Medical school: University Of Missouri, Kansas City, School Of Medicine · graduated 1986 (40 years since medical school)
  • Gender (as listed): Male

From official Medicare data

This page shows what Medicare's official clinician data says about Leo M. Contois, 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 Leo M. Contois accept Medicare assignment?
Yes. Medicare's clinician data says Leo M. Contois 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 Leo M. Contois see?
In 2024, CMS data shows 220 Original Medicare patients and 250 services for Leo M. Contois. This counts Original Medicare only and measures volume, not quality.
What is Leo M. Contois's NPI number?
1295785905. 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 Leo M. Contois, 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 patients220
Services billed to Medicare250
Different services or procedures60
Participating Medicare providerYes
Average age of these patients74

Most frequent services

  1. Anesthesia for other closed procedure on chest (00520)62 services
  2. Insertion of artery tube for blood sampling or infusion through skin (36620)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%
  • Arthritis50%
  • Ischemic heart disease36%
  • Cancer (breast, colorectal, lung, prostate, endometrial or leukemia/lymphoma)35%
  • Diabetes34%

Hospitals where Leo M. Contois works

Medicare's Facility Affiliation Data lists Leo M. Contois 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.

Practice locations

Addresses where Leo M. Contois is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Leo M. Contois as a member of this group (CMS data updated October 2, 2026).

  • Integrated Anesthesia Associates LLC409 clinicians in the group

Specialties

Find other Anesthesiology doctors in Connecticut →

Other anesthesiologists in Hartford

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

All anesthesiologists in Hartford →

Other clinicians in Integrated Anesthesia Associates LLC

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

Clinician information

CredentialMD
Medical schoolUniversity Of Missouri, Kansas City, School Of Medicine
Graduation year1986 (40 years since medical school)
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1295785905
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