Quick answers
- Does Jeongwon Choi accept Medicare assignment?
- Yes. Medicare's clinician data says Jeongwon 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 Jeongwon Choi see?
- In 2024, CMS data shows 341 Original Medicare patients and 1,750 services for Jeongwon Choi. This counts Original Medicare only and measures volume, not quality.
- What is Jeongwon Choi's NPI number?
- 1902213820. 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 Jeongwon 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 | 341 |
|---|---|
| Services billed to Medicare | 1,750 |
| Different services or procedures | 19 |
| Participating Medicare provider | Yes |
| Average age of these patients | 70 |
Most frequent services
- Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)696 services
- Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)210 services
- Management using the results of remote vital sign monitoring per calendar month, each additional 20 minutes (99458)123 services
- Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)116 services
- Dialysis services, 4 or more physician visits per month (20 years or older) (90960)107 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%
- Chronic kidney disease75%
- Diabetes73%
- Heart failure62%
- Ischemic heart disease56%
Hospitals where Jeongwon Choi works
Medicare's Facility Affiliation Data lists Jeongwon 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.
- El Camino HealthMountain View, CA · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 050308
- Good Samaritan HospitalSan Jose, CA · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 050380
- Santa Clara Valley Medical CenterSan Jose, CA · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 050038
Practice locations
Addresses where Jeongwon Choi is enrolled with Medicare (CMS data updated October 2, 2026).
- 200 Jose Figueres Ave, Suite 255San Jose, CA 95116 (408) 223‑7474
Group practices
Medicare enrollment lists Jeongwon Choi as a member of this group (CMS data updated October 2, 2026).
- Valley Medical Consultants Inc5 clinicians in the group
Specialties
- Nephrologyprimary
Other nephrologists in San Jose
Clinicians with the same Medicare primary specialty in San Jose, CA — not a recommendation.
Other clinicians in Valley Medical Consultants Inc
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 2009 (17 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1902213820 |
| 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