Quick answers
- Does Julian J. Choi accept Medicare assignment?
- Yes. Medicare's clinician data says Julian J. Choi accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
- How many Medicare patients does Julian J. Choi see?
- In 2024, CMS data shows 205 Original Medicare patients and 767 services for Julian J. Choi. This counts Original Medicare only and measures volume, not quality.
- What is Julian J. Choi's NPI number?
- 1730506395. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Medicare activity in 2024
Official CMS public-use data for Julian J. Choi, 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.
| Original Medicare patients | 205 |
|---|---|
| Services billed to Medicare | 767 |
| Different services or procedures | 17 |
| Participating Medicare provider | Yes |
| Average age of these patients | 74 |
Most frequent services
- Critical care, first 30-74 minutes (99291)390 services
- Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)156 services
- Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)91 services
- Critical care, each additional 30 minutes (99292)48 services
- Emergent insertion of breathing tube into windpipe using an endoscope (31500)15 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%
- Diabetes74%
- Chronic kidney disease69%
- Heart failure65%
- Ischemic heart disease57%
Hospitals where Julian J. Choi works
Medicare's Facility Affiliation Data lists Julian J. Choi 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.
- PIH Health Good Samaritan HospitalLos Angeles, CA · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: not listed by Medicare · CCN 050471
- UCI Health-LakewoodLakewood, CA · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 050581
- UCI Health-OrangeOrange, CA · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 050348
Practice locations
Addresses where Julian J. Choi is enrolled with Medicare (CMS data updated October 2, 2026).
- 1225 Wilshire BlvdLos Angeles, CA 90017 (213) 977‑2121
- 12401 Washington BlvdWhittier, CA 90602 (562) 698‑0811
- 12401 Washington Blvd, Suite 100Whittier, CA 90602 (562) 967‑2885
- 12675 La Mirada Blvd, Suite 201and401La Mirada, CA 90638 (562) 903‑7339
- 3630 E Imperial HwyLynwood, CA 90262 (310) 900‑8900
Group practices
Medicare enrollment lists Julian J. Choi as a member of these groups (CMS data updated October 2, 2026).
- PIH Health Physicians622 clinicians in the group
- Prohealth Partners, a Medical Group239 clinicians in the group
Specialties
Other internal medicine doctors in Los Angeles
Clinicians with the same Medicare primary specialty in Los Angeles, CA — not a recommendation.
Other clinicians in PIH Health Physicians
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | DO |
|---|---|
| Graduation year | 2014 (12 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1730506395 |
| Corrections | Report an error or suggest an update → |
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
- Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated October 2, 2026, retrieved October 29, 2026
- Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
- National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
- Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians