Tse Ling Fong, MD

Medicare activity in 2024

Official CMS public-use data for Tse Ling Fong, 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. Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)474 services
2. Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)207 services
3. New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)158 services
4. Measurement of liver stiffness (91200)32 services
5. Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more (99215)16 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%
• Arthritis50%
• Diabetes40%
• Ischemic heart disease28%
• Chronic kidney disease27%

Hospitals where Tse Ling Fong works

Medicare's Facility Affiliation Data lists Tse Ling Fong 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.

• Hoag Memorial Hospital PresbyterianNewport Beach, CA · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 050224
• Pomona Valley Hospital Medical CenterPomona, CA · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 050231
• Providence Mission HospitalMission Viejo, CA · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 050567
• UCI Health-OrangeOrange, CA · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 050348

Practice locations

Addresses where Tse Ling Fong is enrolled with Medicare (CMS data updated October 2, 2026).

• 1 Hoag DrNewport Beach, CA 92663
• 1031 Avenida Pico, Suite 204San Clemente, CA 92673 (949) 829‑5533
• 16405 Sand Canyon Ave, Suite 200Irvine, CA 92618 (949) 383‑4190
• 500 Superior Ave, Suite 270Newport Beach, CA 92663 (949) 791‑3370

Group practices

Medicare enrollment lists Tse Ling Fong as a member of this group (CMS data updated October 2, 2026).

• Hoag Clinic460 clinicians in the group

Specialties

• Gastroenterologyprimary
• Internal Medicinealso

Find other Gastroenterology doctors in California →

Other gastroenterologists in Newport Beach

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

• Patricia Shih-Ting Tsai, MD
• Kenneth J. Chang, MD
• Donald R. Abrahm, MD
• Richard G. Quist, MD
• Brian Lee, MD
• Parminder S. Dhaliwal, MD
• Rashmi Kumar, MD
• Lino J. Deguzman, MD

All gastroenterologists in Newport Beach →

Other clinicians in Hoag Clinic

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

• Amy X. Lau, MD
• Sarah S. Teymoorian, MD
• Sarah E. Graziani, NP
• David J. Benjamin, MD
• James Suchy, MD
• Joomo Yang, 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