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Cardiovascular Disease (Cardiology)

J. Leonard Dire, MD

Works at hospitals in Bronx, NY · New Rochelle, NY · White Plains, NY · New York

Summary

Dr. J. Leonard Dire, MD is a cardiologist at 175 Memorial Hwy, New Rochelle, NY 10801. Phone: (866) 633-8255. May accept Medicare assignment. In 2024, J. Leonard Dire had 688 Original Medicare patients and 3,241 services. NPI 1588639389. 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.

From official Medicare data

This page shows what Medicare's official clinician data says about J. Leonard Dire, 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 J. Leonard Dire accept Medicare assignment?
Medicare's clinician data says J. Leonard Dire may accept Medicare assignment (as of October 2, 2026). Ask the office whether they accept it for your visit.
How many Medicare patients does J. Leonard Dire see?
In 2024, CMS data shows 688 Original Medicare patients and 3,241 services for J. Leonard Dire. This counts Original Medicare only and measures volume, not quality.
What is J. Leonard Dire's NPI number?
1588639389. 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 J. Leonard Dire, 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 patients688
Services billed to Medicare3,241
Different services or procedures40
Participating Medicare providerYes
Average age of these patients78

Most frequent services

  1. Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report (93000)959 services
  2. Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)852 services
  3. Ultrasound of heart with color-depicted blood flow, rate, direction and valve function (93306)235 services
  4. Evaluation of cardiac rhythm monitor system, remote up to 30 days (93298)173 services
  5. Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only (93010)168 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%
  • Ischemic heart disease52%
  • Arthritis46%
  • Diabetes43%
  • Atrial fibrillation37%

Hospitals where J. Leonard Dire works

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

Group practices

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

  • Montefiore Medical Center2,820 clinicians in the group

Specialties

Find other Cardiovascular Disease (Cardiology) doctors in New York →

Other cardiologists in New Rochelle

Clinicians with the same Medicare primary specialty in New Rochelle, NY — not a recommendation.

All cardiologists in New Rochelle →

Other clinicians in Montefiore Medical Center

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

Clinician information

CredentialMD
Medical schoolAlbany Medical College Of Union University
Graduation year1986 (40 years since medical school)
Gender (as listed)Male
Medicare assignmentMay accept for some services
TelehealthOffers telehealth services
NPI (National Provider Identifier)1588639389
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