DR. WALTER RICHARD BUSH JR. M.D.
NPI 1437191566
Emergency Medicine in Los Angeles, CA
About Dr. Walter Richard Bush Jr. M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. WALTER RICHARD BUSH JR. M.D. (NPI 1437191566) is an individual emergency medicine provider in Los Angeles, California, licensed in California (G77957) and active in the NPI registry since June 2006. He is enrolled in Medicare PECOS, is affiliated with Maui Memorial Medical Center, and is a graduate of Wake Forest University School Of Medicine (1992).
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 6
Accepted Insurance
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. Walter Richard Bush Jr. 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
7Medicare enrollment records show Walter Bush reassigns Medicare billing to 7 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Inglewood, CA 90301
- Reassigned Medicare billing, California enrollment
- 111 clinicians in this Medicare group
Huntington Park, CA 90255
- Reassigned Medicare billing, California enrollment
- 74 clinicians in this Medicare group
Van Nuys, CA 91405
- Reassigned Medicare billing, California enrollment
- 86 clinicians in this Medicare group
Los Angeles, CA 90059
- Reassigned Medicare billing, California enrollment
- 435 clinicians in this Medicare group
Norwalk, CA 90650
- Reassigned Medicare billing, California enrollment
- 47 clinicians in this Medicare group
Chino, CA 91710
- Reassigned Medicare billing, California enrollment
- 99 clinicians in this Medicare group
Wailuku, HI 96793
- Reassigned Medicare billing, Hawaii enrollment
- 41 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 4
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.
Hospital Affiliations CMS Care Compare
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Maui Memorial Medical Center
Acute Care Hospitals · Wailuku, HIPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 90019 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.
Other Providers at the Same Location NPPES 12
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
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 Walter Bush's NPI number?
The NPI number for Walter Bush is 1437191566. It was assigned to this individual provider in the NPPES registry on June 12, 2006.
Where is Walter Bush located?
Walter Bush practices at 5925 San Vicente Blvd, Los Angeles, CA 90019. The listed phone number is (323) 932-5105.
What is Walter Bush's specialty?
The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.
Is Walter Bush enrolled in Medicare?
Yes. Walter Bush 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 Walter Bush's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Walter Bush reassigns Medicare benefits to 7 organizations: Centinela Freeman Emergency Medical Associates, Inc. (Inglewood, CA), Huntington Park Emergency Physicians, Inc (Huntington Park, CA), Valley Presbyterian Emergency Medical Associates (Van Nuys, CA), County Of Los Angeles (Los Angeles, CA), Coast Plaza Emergency Physicians Group Inc (Norwalk, CA) and 2 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 Walter Bush's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Walter Bush accept?
Health plans from Kaiser Permanente list Walter Bush as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.
Is Walter Bush affiliated with any hospitals?
According to CMS data, Walter Bush is affiliated with Maui Memorial Medical Center.
When was this NPI record last updated?
The NPPES record for Walter Bush was last updated on July 3, 2008. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 18 years 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. Walter Richard Bush Jr., M.D. · NPI 1437191566
Emergency Medicine physician in Los Angeles, California. Individual provider, active in the CMS NPPES registry since June 12, 2006.
## Identity
- **NPI:** 1437191566 (Entity type: Individual)
- **Enumerated:** June 12, 2006
- **Primary specialty:** Emergency Medicine · taxonomy 207P00000X
- **State license:** G77957 (California)
- **Sole proprietor:** No
## Practice location
- **Address:** 5925 SAN VICENTE BLVD, Los Angeles, CA 90019-6630
- **Phone:** (323) 932-5105 · **Fax:** (323) 932-5356
## 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:** 7 organizations under Medicare reassignment (form CMS-855R): Centinela Freeman Emergency Medical Associates, Inc. (NPI 1528333101, Inglewood, CA); Huntington Park Emergency Physicians, Inc (NPI 1053747121, Huntington Park, CA); Valley Presbyterian Emergency Medical Associates (NPI 1033133103, Van Nuys, CA); County Of Los Angeles (NPI 1780877613, Los Angeles, CA); Coast Plaza Emergency Physicians Group Inc (NPI 1912308446, Norwalk, CA); and 2 more · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Wake Forest University School Of Medicine, class of 1992
## Record status
- **NPPES last updated:** July 3, 2008
- **Other identifiers:** Medicare PIN WG77957F (CA); Medicaid 00G779570 (CA); Medicare UPIN F90581 (CA); and 3 more
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Source: [NPI Profile](https://npiprofile.com/npi/1437191566) · Data from the CMS NPPES public registry.