Quick answers
- Does Jasper M. Rosario accept Medicare assignment?
- Yes. Medicare's clinician data says Jasper M. Rosario 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 Jasper M. Rosario see?
- In 2024, CMS data shows 292 Original Medicare patients and 365 services for Jasper M. Rosario. This counts Original Medicare only and measures volume, not quality.
- What is Jasper M. Rosario's NPI number?
- 1982846325. 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 Jasper M. Rosario, 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 | 292 |
|---|---|
| Services billed to Medicare | 365 |
| Different services or procedures | 62 |
| Participating Medicare provider | Yes |
| Average age of these patients | 75 |
Most frequent services
- Anesthesia for lens surgery (00142)59 services
- Anesthesia for other procedure on esophagus, stomach, or upper small bowel using an endoscope (00731)29 services
- Anesthesia for procedure for total knee joint replacement (01402)27 services
- Injection of anesthetic agent and/or steroid into thigh nerve (femoral nerve) (64447)23 services
- Anesthesia for other procedure on large bowel using an endoscope (00811)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%
- Arthritis58%
- Diabetes48%
- Ischemic heart disease36%
- Chronic kidney disease34%
Hospitals where Jasper M. Rosario works
Medicare's Facility Affiliation Data lists Jasper M. Rosario 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.
- Keck Hospital of USCLos Angeles, CA · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: not listed by Medicare · CCN 050696
- USC Arcadia HospitalArcadia, CA · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 050238
Practice locations
Addresses where Jasper M. Rosario is enrolled with Medicare (CMS data updated October 2, 2026). The first 5 of 8; the Medicare profile lists all.
- 1115 S Sunset AveWest Covina, CA 91790 (626) 795‑6596
- 1500 San Pablo StLos Angeles, CA 90033
- 1516 San Pablo StLos Angeles, CA 90033 (800) 872‑2273
- 1516 San Pablo St, Suite L3100Los Angeles, CA 90033 (800) 872‑2273
- 1520 San Pablo StLos Angeles, CA 90033 (800) 872‑2273
Group practices
Medicare enrollment lists Jasper M. Rosario as a member of these groups (CMS data updated October 2, 2026).
- USC Care Medical Group Inc1,380 clinicians in the group
- Pacific Valley Medical Group106 clinicians in the group
- Citrus Valley Anesthesia Medical Group17 clinicians in the group
Specialties
- Anesthesiologyprimary
Other anesthesiologists in West Covina
Clinicians with the same Medicare primary specialty in West Covina, CA — not a recommendation.
Other clinicians in USC Care Medical Group Inc
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | DO |
|---|---|
| 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) | 1982846325 |
| 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