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Nephrology

Aldo J. Peixoto, MD

Works at hospitals in New Haven, CT · Connecticut

Summary

Dr. Aldo J. Peixoto, MD is a nephrologist at 800 Howard Ave, New Haven, CT 06519. Phone: (203) 785-2140. Accepts Medicare assignment. In 2024, Aldo J. Peixoto had 146 Original Medicare patients and 496 services. NPI 1073614921. 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: Nephrologist (Medicare lists Nephrology)
  • Address: 800 Howard Ave, New Haven, CT 06519 · Directions
  • Phone: (203) 785‑2140
  • Medicare: Accepts Medicare assignment
  • Hospital: Yale-New Haven Hospital
  • Group practice: Yale University
  • Medical school: graduated 1992 (34 years since medical school)
  • Gender (as listed): Male
  • Telehealth: offered

From official Medicare data

This page shows what Medicare's official clinician data says about Aldo J. Peixoto, 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 Aldo J. Peixoto accept Medicare assignment?
Yes. Medicare's clinician data says Aldo J. Peixoto 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 Aldo J. Peixoto see?
In 2024, CMS data shows 146 Original Medicare patients and 496 services for Aldo J. Peixoto. This counts Original Medicare only and measures volume, not quality.
What is Aldo J. Peixoto's NPI number?
1073614921. 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 Aldo J. Peixoto, 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 patients146
Services billed to Medicare496
Different services or procedures15
Participating Medicare providerYes
Average age of these patients73

Most frequent services

  1. Visit complexity inherent to evaluation and management associated with medical care services that serve as the continuing focal point for all needed health care services and/or with medical care services that are part of ongoing care related to a patient's (G2211)164 services
  2. Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)142 services
  3. Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)81 services
  4. Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more (99215)28 services
  5. Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)26 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%
  • Chronic kidney disease64%
  • Arthritis52%
  • Ischemic heart disease42%
  • Anxiety39%

Hospitals where Aldo J. Peixoto works

Medicare's Facility Affiliation Data lists Aldo J. Peixoto 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 Aldo J. Peixoto is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Aldo J. Peixoto as a member of this group (CMS data updated October 2, 2026).

  • Yale University2,645 clinicians in the group

Specialties

Find other Nephrology doctors in Connecticut →

Other nephrologists in New Haven

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

All nephrologists in New Haven →

Other clinicians in Yale University

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

Clinician information

CredentialMD
Graduation year1992 (34 years since medical school)
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
TelehealthOffers telehealth services
NPI (National Provider Identifier)1073614921
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