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General Surgery

Alfred J. Croteau, MD

Works at hospitals in Hartford, CT · Connecticut

Summary

Dr. Alfred J. Croteau, MD is a general surgeon at 80 Seymour St, Hartford, CT 06102. Phone: (860) 246-2071. Accepts Medicare assignment. In 2024, Alfred J. Croteau had 36 Original Medicare patients and 43 services. NPI 1194024380. 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: General surgeon (Medicare lists General Surgery)
  • Address: 80 Seymour St, Hartford, CT 06102 · Directions (1 more location)
  • Phone: (860) 246‑2071
  • Medicare: Accepts Medicare assignment
  • Hospital: Hartford Hospital
  • Group practice: Hartford Healthcare Medical Group Specialists PLLC (+1 more)
  • Medical school: graduated 2011 (15 years since medical school)
  • Gender (as listed): Male

From official Medicare data

This page shows what Medicare's official clinician data says about Alfred J. Croteau, 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 Alfred J. Croteau accept Medicare assignment?
Yes. Medicare's clinician data says Alfred J. Croteau 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 Alfred J. Croteau see?
In 2024, CMS data shows 36 Original Medicare patients and 43 services for Alfred J. Croteau. This counts Original Medicare only and measures volume, not quality.
What is Alfred J. Croteau's NPI number?
1194024380. 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 Alfred J. Croteau, 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 patients36
Services billed to Medicare43
Different services or procedures20
Participating Medicare providerYes
Average age of these patients72

Most frequent services

  1. Critical care, first 30-74 minutes (99291)15 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%
  • Heart failure58%
  • Atrial fibrillation58%
  • Ischemic heart disease56%
  • Anxiety50%

Hospitals where Alfred J. Croteau works

Medicare's Facility Affiliation Data lists Alfred J. Croteau 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.

  • Hartford HospitalHartford, CT · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 070025

Practice locations

Addresses where Alfred J. Croteau is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Alfred J. Croteau as a member of these groups (CMS data updated October 2, 2026).

  • Hartford Healthcare Medical Group Specialists PLLC1,588 clinicians in the group
  • Hartford Hospital1,044 clinicians in the group

Specialties

Find other General Surgery doctors in Connecticut →

Other general surgeons in Hartford

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

All general surgeons in Hartford →

Other clinicians in Hartford Healthcare Medical Group Specialists PLLC

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

Clinician information

CredentialMD
Graduation year2011 (15 years since medical school)
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1194024380
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