Mei Ling E. Fong, MD

Medicare activity in 2024

Official CMS public-use data for Mei Ling E. 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. Insertion of needle into vein for collection of blood sample (36415)132 services
2. Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)80 services
3. Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)78 services
4. Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more (99215)73 services
5. Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit (G0439)72 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 cholesterol64%
• High blood pressure55%
• Arthritis38%
• Osteoporosis20%
• Ischemic heart disease19%
• Depression16%

Hospitals where Mei Ling E. Fong works

Medicare's Facility Affiliation Data lists Mei Ling E. 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.

• California Pacific Medical Center- Van Ness CampusSan Francisco, CA · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 050047
• Marinhealth Medical CenterGreenbrae, CA · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 050360
• Novato Community HospitalNovato, CA · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 050131
• UCSF Medical CenterSan Francisco, CA · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 050454

Practice locations

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

• 1000 S Eliseo Dr, Suite 200Greenbrae, CA 94904 (415) 752‑7141

Specialties

• Internal Medicineprimary

Find other Internal Medicine doctors in California →

Other internal medicine doctors in Greenbrae

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

• Katherine E. Schmidt, MD
• Maryam Ziaie Matin, MD
• Harith H. Al Shuwaykh, MD
• Rafay S. Abbasi, MD
• Anne M. Cummings, MD
• Douglas E. Cohen, MD
• Susan Nguyen, MD
• Elizaveta Shostakovich, MD

All internal medicine doctors in Greenbrae →

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