Quick answers
- Does Jacob Sung S. Keum accept Medicare assignment?
- Yes. Medicare's clinician data says Jacob Sung S. Keum 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 Jacob Sung S. Keum see?
- In 2024, CMS data shows 262 Original Medicare patients and 306 services for Jacob Sung S. Keum. This counts Original Medicare only and measures volume, not quality.
- What is Jacob Sung S. Keum's NPI number?
- 1215998737. 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 Jacob Sung S. Keum, 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 | 262 |
|---|---|
| Services billed to Medicare | 306 |
| Different services or procedures | 8 |
| Participating Medicare provider | Yes |
| Average age of these patients | 72 |
Most frequent services
- Emergency department visit with high level of medical decision making (99285)215 services
- Emergency department visit with moderate level of medical decision making (99284)55 services
- Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only (93010)23 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%
- Diabetes68%
- Arthritis56%
- Heart failure54%
- Chronic kidney disease50%
Hospitals where Jacob Sung S. Keum works
Medicare's Facility Affiliation Data lists Jacob Sung S. Keum 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.
- Community Hospital of Huntington ParkHuntington Park, CA · Acute Care Hospital · Medicare rating: 1 of 5 stars · Emergency services: listed by Medicare · CCN 050091
- Parkview Community Hospital Medical CenterRiverside, CA · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 050102
- Southern California Hospital at HollywoodHollywood, CA · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 050135
Practice locations
Addresses where Jacob Sung S. Keum is enrolled with Medicare (CMS data updated October 2, 2026).
- 1225 Wilshire BlvdLos Angeles, CA 90017 (213) 977‑2420
- 2623 E Slauson AveHuntington Park, CA 90255 (323) 583‑1931
- 3828 Delmas TerCulver City, CA 90232 (310) 202‑4745
- 3865 Jackson StRiverside, CA 92503 (951) 352‑5666
- 6245 De Longpre AveLos Angeles, CA 90028 (323) 785‑1204
Group practices
Medicare enrollment lists Jacob Sung S. Keum as a member of these groups (CMS data updated October 2, 2026).
- Can Emergency Physicians Medical Group Inc45 clinicians in the group
- Riverside Emergency Physicians Medical Group24 clinicians in the group
- Culver Emergency Medical Group16 clinicians in the group
- Huntington Park Emergency Physicians Inc11 clinicians in the group
Specialties
- Emergency Medicineprimary
Other emergency medicine doctors in Los Angeles
Clinicians with the same Medicare primary specialty in Los Angeles, CA — not a recommendation.
Other clinicians in Can Emergency Physicians Medical Group Inc
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | DO |
|---|---|
| Medical school | New York College Of Osteo Medicine Of New York Institute Of Technology |
| Graduation year | 2000 (26 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1215998737 |
| 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