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Internal Medicine

Jeremiah W. Oconnor, DO

Sees patients in Bronx, NY · New York

Summary

Dr. Jeremiah W. Oconnor, DO is an internal medicine doctor at 545 E 142nd St, Bronx, NY 10454. Phone: (718) 579-4000. Accepts Medicare assignment. In 2024, Jeremiah W. Oconnor had 28 Original Medicare patients and 108 services. NPI 1164860961. Source: CMS National Downloadable File, updated October 2, 2026; CMS Medicare Physician & Other Practitioners, data year 2024.

  • Specialty: Internal medicine doctor (Medicare lists Internal Medicine)
  • Address: 545 E 142nd St, Bronx, NY 10454 · Directions
  • Phone: (718) 579‑4000
  • Medicare: Accepts Medicare assignment
  • Group practice: New York City Health and Hospitals Corporation
  • Medical school: Touro Un College Of Osteopathic Medicine, Vallejo · graduated 2023 (3 years since medical school)
  • Gender (as listed): Male

From official Medicare data

This page shows what Medicare's official clinician data says about Jeremiah W. Oconnor, 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 Jeremiah W. Oconnor accept Medicare assignment?
Yes. Medicare's clinician data says Jeremiah W. Oconnor 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 Jeremiah W. Oconnor see?
In 2024, CMS data shows 28 Original Medicare patients and 108 services for Jeremiah W. Oconnor. This counts Original Medicare only and measures volume, not quality.
What is Jeremiah W. Oconnor's NPI number?
1164860961. 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 Jeremiah W. Oconnor, 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 patients28
Services billed to Medicare108
Different services or procedures14
Participating Medicare providerYes
Average age of these patients69

Most frequent services

  1. Blood test, basic group of blood chemicals (calcium, total) (80048)27 services
  2. Hemoglobin a1c level (83036)26 services
  3. Blood test, lipids (cholesterol and triglycerides) (80061)24 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 pressure71%
  • High cholesterol54%
  • Diabetes50%

Practice locations

Addresses where Jeremiah W. Oconnor is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Jeremiah W. Oconnor as a member of this group (CMS data updated October 2, 2026).

  • New York City Health and Hospitals Corporation571 clinicians in the group

Specialties

Find other Internal Medicine doctors in New York →

Other internal medicine doctors in Bronx

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

All internal medicine doctors in Bronx →

Other clinicians in New York City Health and Hospitals Corporation

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

Clinician information

CredentialDO
Medical schoolTouro Un College Of Osteopathic Medicine, Vallejo
Graduation year2023 (3 years since medical school)
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1164860961
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 October 2, 2026, retrieved October 29, 2026
  2. Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
  3. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  4. Medicare Care Compare — official Medicare tool to look up clinicians