Quick answers
- Does Myung Gi Choi accept Medicare assignment?
- Yes. Medicare's clinician data says Myung Gi 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 Myung Gi Choi see?
- In 2024, CMS data shows 593 Original Medicare patients and 1,280 services for Myung Gi Choi. This counts Original Medicare only and measures volume, not quality.
- What is Myung Gi Choi's NPI number?
- 1679650675. 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 Myung Gi 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 | 593 |
|---|---|
| Services billed to Medicare | 1,280 |
| Different services or procedures | 32 |
| Participating Medicare provider | Yes |
| Average age of these patients | 76 |
Most frequent services
- Diagnostic exam of esophagus, stomach, and/or upper small bowel using a flexible endoscope (43235)362 services
- New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)265 services
- Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)175 services
- Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope (43239)101 services
- Diagnostic exam of large bowel using a flexible endoscope (45378)91 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%
- Diabetes57%
- Arthritis57%
- Ischemic heart disease30%
- Osteoporosis28%
Practice locations
Addresses where Myung Gi Choi is enrolled with Medicare (CMS data updated October 2, 2026).
- 266 S Harvard Blvd, Suite 250Los Angeles, CA 90004 (213) 387‑9000
Specialties
- Gastroenterologyprimary
Other gastroenterologists in Los Angeles
Clinicians with the same Medicare primary specialty in Los Angeles, CA — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Harvard Medical School |
| Graduation year | 1984 (42 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1679650675 |
| 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
- 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