Amy O. Chonghasawat, MD

Medicare activity in 2024

Official CMS public-use data for Amy O. Chonghasawat, 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. Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)24 services
2. Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)24 services
3. Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)22 services
4. Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)18 services
5. Insertion of stomach tube using a flexible endoscope (43246)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%
• Diabetes54%
• Chronic kidney disease49%
• Alzheimer's disease or dementia46%
• Arthritis42%

Hospitals where Amy O. Chonghasawat works

Medicare's Facility Affiliation Data lists Amy O. Chonghasawat 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.

• Alhambra Hospital Medical CenterAlhambra, CA · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: not listed by Medicare · CCN 050281
• Garfield Medical CenterMonterey Park, CA · Acute Care Hospital · Medicare rating: 1 of 5 stars · Emergency services: listed by Medicare · CCN 050737
• Monterey Park HospitalMonterey Park, CA · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: not listed by Medicare · CCN 050736
• San Gabriel Valley Medical CenterSan Gabriel, CA · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 050132

Practice locations

Addresses where Amy O. Chonghasawat is enrolled with Medicare (CMS data updated October 2, 2026).

• 18575 Gale AveCity Of Industry, CA 91748 (626) 457‑6333

Group practices

Medicare enrollment lists Amy O. Chonghasawat as a member of this group (CMS data updated October 2, 2026).

• Advance Surgeons Medical Group Inc9 clinicians in the group

Specialties

• General Surgeryprimary

Find other General Surgery doctors in California →

Other general surgeons in City Of Industry

Clinicians with the same Medicare primary specialty in City Of Industry, CA — not a recommendation.

• Norman C. Bautista, MD
• Lung-Ching Lee, MD
• Kashif A. Zuberi, MD
• Young T. Tran, MD
• Bob J. Wu, MD

All general surgeons in City Of Industry →

Other clinicians in Advance Surgeons Medical Group Inc

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

• Norman C. Bautista, MD
• Lung-Ching Lee, MD
• Christopher Lai, MD
• Kashif A. Zuberi, MD
• Young T. Tran, MD
• Bob J. Wu, 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