DR. JIM SORENA SERAJ M.D.
NPI 1467746362
Emergency Medicine in Winchester, CA
About Dr. Jim Sorena Seraj M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. JIM SORENA SERAJ M.D. (NPI 1467746362) is an individual emergency medicine provider in Winchester, California, licensed in Illinois (036153092) and active in the NPI registry since June 2011. He is enrolled in Medicare PECOS and is a graduate of Other (2010).
NPPES Registry Identity
Specialties & Licenses
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Dr. Jim Sorena Seraj M.d. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Medicare Billing Reassignments
12Medicare enrollment records show Jim Seraj reassigns Medicare billing to 12 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Anaheim, CA 92807
- Reassigned Medicare billing, California enrollment
- 13,921 clinicians in this Medicare group
Norwalk, CA 90650
- Reassigned Medicare billing, California enrollment
- 55 clinicians in this Medicare group
Victorville, CA 92395
- Reassigned Medicare billing, California enrollment
- 53 clinicians in this Medicare group
Los Angeles, CA 90023
- Reassigned Medicare billing, California enrollment
- 31 clinicians in this Medicare group
Los Angeles, CA 90023
- Reassigned Medicare billing, California enrollment
- 30 clinicians in this Medicare group
Alhambra, CA 91801
- Reassigned Medicare billing, California enrollment
- Medicare enrollment name: Andy Shen MD Inc
- 50 clinicians in this Medicare group
Huntington Park, CA 90255
- Reassigned Medicare billing, California enrollment
- 74 clinicians in this Medicare group
Huntington Park, CA 90255
- Reassigned Medicare billing, California enrollment
- 2 clinicians in this Medicare group
Barstow, CA 92311
- Reassigned Medicare billing, California enrollment
- 36 clinicians in this Medicare group
Valencia, CA 91355
- Reassigned Medicare billing, California enrollment
- 51 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Areas of Expertise CMS Part B claims 7
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 92596 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Medicare Quality Performance CMS QPP · MIPS
Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.
Frequently Asked Questions NPPES & CMS
Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.
What is Jim Seraj's NPI number?
The NPI number for Jim Seraj is 1467746362. It was assigned to this individual provider in the NPPES registry on June 8, 2011.
Where is Jim Seraj located?
Jim Seraj practices at 35876 Winchester Road 300-335, Winchester, CA 92596. The listed phone number is (949) 549-1000.
What is Jim Seraj's specialty?
The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.
Is Jim Seraj enrolled in Medicare?
Yes. Jim Seraj is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
Which organizations bill Medicare for Jim Seraj's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Jim Seraj reassigns Medicare benefits to 12 organizations: Southern California Permanente Medical Group (Anaheim, CA), California Hospitalists Emergency Physicians Medical Group Inc (Norwalk, CA), Ignite Emergency Physicians A Medical Corporation (Victorville, CA), ER Physicians Medical Group, Inc. (Los Angeles, CA), East La Emergency Physicians, Inc. (Los Angeles, CA) and 7 more organizations, listed in the Medicare section above. Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Jim Seraj's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
When was this NPI record last updated?
The NPPES record for Jim Seraj was last updated on June 6, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.
# Dr. Jim Sorena Seraj, M.D. · NPI 1467746362
Emergency Medicine physician in Winchester, California. Individual provider, active in the CMS NPPES registry since June 8, 2011.
## Identity
- **NPI:** 1467746362 (Entity type: Individual)
- **Enumerated:** June 8, 2011
- **Primary specialty:** Emergency Medicine · taxonomy 207P00000X
- **State license:** 036153092 (Illinois)
- **Sole proprietor:** No
## Practice location
- **Address:** 35876 WINCHESTER ROAD, 300-335, Winchester, CA 92596
- **Phone:** (949) 549-1000 · **Fax:** (762) 200-7558
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 12 organizations under Medicare reassignment (form CMS-855R): Southern California Permanente Medical Group (NPI 1952333460, Anaheim, CA); California Hospitalists Emergency Physicians Medical Group Inc (NPI 1760648539, Norwalk, CA); Ignite Emergency Physicians A Medical Corporation (NPI 1437918307, Victorville, CA); ER Physicians Medical Group, Inc. (NPI 1063765907, Los Angeles, CA); East La Emergency Physicians, Inc. (NPI 1588198055, Los Angeles, CA); and 7 more · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2010
## Record status
- **NPPES last updated:** June 6, 2026
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Source: [NPI Profile](https://npiprofile.com/npi/1467746362) · Data from the CMS NPPES public registry.