Harold Chung Loy, MD

Medicare activity in 2024

Official CMS public-use data for Harold Chung Loy, 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.

Most frequent services

1. Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)36 services
2. New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)35 services
3. Repair of groin hernia using an endoscope (49650)12 services
4. Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)12 services
5. Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)12 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%
• Diabetes47%
• Arthritis44%
• Ischemic heart disease44%
• Anxiety39%

Hospitals where Harold Chung Loy works

Medicare's Facility Affiliation Data lists Harold Chung Loy 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.

• JFK University Medical CenterEdison, NJ · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 310108

Practice locations

Addresses where Harold Chung Loy is enrolled with Medicare (CMS data updated October 2, 2026).

• 30 Prospect AveHackensack, NJ 07601
• 65 James StEdison, NJ 08820
• 98 James StEdison, NJ 08820

Group practices

Medicare enrollment lists Harold Chung Loy as a member of this group (CMS data updated October 2, 2026).

• Hackensack Meridian Health Medical Group - Specialty Care PC1,922 clinicians in the group

Specialties

• General Surgeryprimary
• Vascular Surgeryalso

Find other General Surgery doctors in New Jersey →

Other general surgeons in Hackensack

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

• Alexey Zendel, MD
• Grigoriy Soybelman, MD
• Samuel Sultan, MD
• Alexandra Erhardt, DO
• Frank Diroma, DO
• Ahmad F. Hlayhel, MD
• Kelly Poirier, DO
• Jamshed A. Zuberi, MD

All general surgeons in Hackensack →

Other clinicians in Hackensack Meridian Health Medical Group - Specialty Care PC

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

• Aaron J. Feingold, MD
• Randi J. Katz, DO
• Hunter Humphreys, PA
• Hamid M. Nia, MD
• Rosario J. Ligresti, MD
• Daniel P. Murray, MD

Clinician information

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