Gloria M. Sze, MD

Medicare activity in 2024

Official CMS public-use data for Gloria M. Sze, 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. Pathology examination of tissue using a microscope, intermediate complexity (88305)542 services
2. Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)232 services
3. Biopsy of large bowel using a flexible endoscope (45380)136 services
4. New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more (99203)127 services
5. Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope (43239)118 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 cholesterol75%
• High blood pressure73%
• Arthritis42%
• Diabetes27%
• Osteoporosis25%
• Chronic kidney disease23%

Hospitals where Gloria M. Sze works

Medicare's Facility Affiliation Data lists Gloria M. Sze 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.

• Providence Little Company of Mary Medical Center TorranceTorrance, CA · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: not listed by Medicare · CCN 050353
• Torrance Memorial Medical CenterTorrance, CA · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 050351

Practice locations

Addresses where Gloria M. Sze is enrolled with Medicare (CMS data updated October 2, 2026).

• 23456 Hawthorne Blvd, Suite 300Torrance, CA 90505 (310) 539‑2055

Group practices

Medicare enrollment lists Gloria M. Sze as a member of this group (CMS data updated October 2, 2026).

• South Bay Gastroenterology Medical Group12 clinicians in the group

Specialties

• Gastroenterologyprimary

Find other Gastroenterology doctors in California →

Other gastroenterologists in Torrance

Clinicians with the same Medicare primary specialty in Torrance, CA — not a recommendation.

• Viktor E. Eysselein, MD
• Michael W. Fleischman, MD
• Oren Zaidel, MD
• Kenneth M. Holt, MD
• James C. Kao, MD
• David E. Cohen, MD
• James A. Sattler, MD
• Nazir U. Khaja, MD

All gastroenterologists in Torrance →

Other clinicians in South Bay Gastroenterology Medical Group

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

• Oren Zaidel, MD
• Yesenia French, NP
• Daniel D. Cho, MD
• Jung H. Li, NP
• Fouzia Oza, MD
• Minh Q. Nguyen, 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