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Internal Medicine

Hassan J. Malik, MD

Works at hospitals in Livingston, NJ · Montclair, NJ · Hackensack, NJ · New Jersey

Summary

Dr. Hassan J. Malik, MD is an internal medicine doctor at 1 Bay Ave, Montclair, NJ 07042. Phone: (973) 429-6000. Accepts Medicare assignment. In 2024, Hassan J. Malik had 312 Original Medicare patients and 1,614 services. NPI 1053773366. 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 Hassan J. Malik, 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 Hassan J. Malik accept Medicare assignment?
Yes. Medicare's clinician data says Hassan J. Malik 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 Hassan J. Malik see?
In 2024, CMS data shows 312 Original Medicare patients and 1,614 services for Hassan J. Malik. This counts Original Medicare only and measures volume, not quality.
What is Hassan J. Malik's NPI number?
1053773366. 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 Hassan J. Malik, 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 patients312
Services billed to Medicare1,614
Different services or procedures25
Participating Medicare providerYes
Average age of these patients75

Most frequent services

  1. Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)621 services
  2. Hospital discharge day management, more than 30 minutes (99239)270 services
  3. Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)249 services
  4. Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)233 services
  5. Critical care, first 30-74 minutes (99291)132 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%
  • Diabetes57%
  • Arthritis52%
  • Ischemic heart disease47%
  • Heart failure45%

Hospitals where Hassan J. Malik works

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

Group practices

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

  • Excelcare Medical Associates PA205 clinicians in the group
  • Plover Inpatient Services LLC161 clinicians in the group
  • Montclair Hospital LLC21 clinicians in the group

Specialties

Find other Internal Medicine doctors in New Jersey →

Other internal medicine doctors in Montclair

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

All internal medicine doctors in Montclair →

Other clinicians in Excelcare Medical Associates PA

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

Clinician information

CredentialMD
Graduation year2012 (14 years since medical school)
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1053773366
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