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Internal Medicine

Zachary Bakun, MD

Works at hospitals in Jersey City, NJ · New Brunswick, NJ · Rahway, NJ · New Jersey

Summary

Dr. Zachary Bakun, MD is an internal medicine doctor at 865 Stone St, Rahway, NJ 07065. Phone: (732) 381-4200. Accepts Medicare assignment. In 2024, Zachary Bakun had 304 Original Medicare patients and 869 services. NPI 1962038877. 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 Zachary Bakun, 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 Zachary Bakun accept Medicare assignment?
Yes. Medicare's clinician data says Zachary Bakun 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 Zachary Bakun see?
In 2024, CMS data shows 304 Original Medicare patients and 869 services for Zachary Bakun. This counts Original Medicare only and measures volume, not quality.
What is Zachary Bakun's NPI number?
1962038877. 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 Zachary Bakun, 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 patients304
Services billed to Medicare869
Different services or procedures15
Participating Medicare providerYes
Average age of these patients77

Most frequent services

  1. Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)424 services
  2. Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)114 services
  3. Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)87 services
  4. Advance care planning, first 30 minutes (99497)78 services
  5. Hospital discharge day management, more than 30 minutes (99239)76 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 failure62%
  • Ischemic heart disease59%
  • Diabetes57%
  • Chronic kidney disease52%

Hospitals where Zachary Bakun works

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

Group practices

Medicare enrollment lists Zachary Bakun as a member of this group (CMS data updated October 2, 2026).

  • RWJBH Emergency Medicine Associates, LLC848 clinicians in the group

Specialties

Find other Internal Medicine doctors in New Jersey →

Other internal medicine doctors in Rahway

Clinicians with the same Medicare primary specialty in Rahway, NJ — not a recommendation.

All internal medicine doctors in Rahway →

Other clinicians in RWJBH Emergency Medicine Associates, LLC

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

Clinician information

CredentialMD
Graduation year2020 (6 years since medical school)
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1962038877
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