Chang Joo Seo, MD

Medicare activity in 2024

Official CMS public-use data for Chang Joo Seo, 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. Emergency department visit with high level of medical decision making (99285)373 services
2. Emergency department visit with moderate level of medical decision making (99284)274 services
3. Emergency department visit with low level of medical decision making (99283)56 services
4. Hospital discharge day management, 30 minutes or less (99238)36 services
5. Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)30 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%
• Arthritis57%
• Ischemic heart disease47%
• Diabetes38%
• Anxiety36%

Hospitals where Chang Joo Seo works

Medicare's Facility Affiliation Data lists Chang Joo Seo 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.

• Englewood Hospital and Medical CenterEnglewood, NJ · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 310045

Practice locations

Addresses where Chang Joo Seo is enrolled with Medicare (CMS data updated October 2, 2026).

• 350 Engle St, Englewood Hospital and Medical CenterEnglewood, NJ 07631 (201) 894‑3450

Group practices

Medicare enrollment lists Chang Joo Seo as a member of this group (CMS data updated October 2, 2026).

• Emergency Physicians of Englewood, PC12 clinicians in the group

Specialties

• Emergency Medicineprimary

Find other Emergency Medicine doctors in New Jersey →

Other emergency medicine doctors in Englewood

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

• Zachary Grossbaum, MD
• Elliot R. Schottland, MD
• Brian A. Rapp, DO
• Elizabeth E. Kay, DO
• Shalom Sokolow, MD
• Tomas Diaz, MD
• Christina Beck, MD
• George F. Safran, MD

All emergency medicine doctors in Englewood →

Other clinicians in Emergency Physicians of Englewood, PC

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

• Zachary Grossbaum, MD
• Elliot R. Schottland, MD
• Brian A. Rapp, DO
• Elizabeth E. Kay, DO
• Jordan Marks
• Vadim Fradlis, DO

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