Khai H. Nguyen, MD

Medicare activity in 2024

Official CMS public-use data for Khai H. Nguyen, 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. Visit complexity inherent to evaluation and management associated with medical care services that serve as the continuing focal point for all needed health care services and/or with medical care services that are part of ongoing care related to a patient's (G2211)357 services
2. Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)228 services
3. Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more (99215)143 services
4. Residence visit for established patient with high level of medical decision making, per day, if using time, at least 60 minutes (99350)26 services
5. Administration of influenza virus vaccine (G0008)24 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 pressure73%
• High cholesterol66%
• Arthritis59%
• Chronic kidney disease35%
• Depression31%
• Atrial fibrillation29%

Hospitals where Khai H. Nguyen works

Medicare's Facility Affiliation Data lists Khai H. Nguyen 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.

• UC San Diego Health Hillcrest - Hillcrest Medical CenterSan Diego, CA · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 050025

Practice locations

Addresses where Khai H. Nguyen is enrolled with Medicare (CMS data updated October 2, 2026).

• 200 W Arbor DrSan Diego, CA 92103 (858) 249‑6748

Group practices

Medicare enrollment lists Khai H. Nguyen as a member of this group (CMS data updated October 2, 2026).

• Regents of the University of California2,089 clinicians in the group

Specialties

• Geriatric Medicineprimary
• Internal Medicinealso

Find other Geriatric Medicine doctors in California →

Other geriatricians in San Diego

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

• Roopali Gupta, MD
• Eddie P. Lam, MD
• Lindsey C. Yourman, MD
• Elly Hann, DO
• Sarah S. Evans, MD
• Parag Agnihotri, MD
• Viacheslav Pecherskiy, MD
• Alvis Tran, MD

All geriatricians in San Diego →

Other clinicians in Regents of the University of California

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

• Carter J. McElroy, PT
• Florencia Lebensohn-Chialvo, CP
• Rajanigandha Dhokarh, MD
• Imanuel R. Lerman, MD
• Jason Handwerker, MD
• Maria Laura G. Freeman, OD

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