DR. KIM CHI THANH BUI M.D.
NPI 1174555882
Pediatrics - Neonatal-Perinatal Medicine in Downey, CA
About Dr. Kim Chi Thanh Bui M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. KIM CHI THANH BUI M.D. (NPI 1174555882) is an individual neonatal-perinatal medicine provider in Downey, California, licensed in California (A45053) and active in the NPI registry since July 2006. She is enrolled in Medicare PECOS.
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 2
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Dr. Kim Chi Thanh Bui M.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignment
Medicare enrollment records show Kim Chi Bui reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Santa Clara, CA 95051
- Reassigned Medicare billing, California enrollment
- 20,078 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.
Other Providers at the Same Location NPPES 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
DOWNEY, CA 90242
DOWNEY, CA 90242
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 Kim Chi Bui's NPI number?
The NPI number for Kim Chi Bui is 1174555882. It was assigned to this individual provider in the NPPES registry on July 6, 2006.
Where is Kim Chi Bui located?
Kim Chi Bui practices at 9333 Imperial Hwy, Downey, CA 90242. The listed phone number is (562) 657-7550.
What is Kim Chi Bui's specialty?
The primary specialty registered for this NPI is Pediatrics, specializing in Neonatal-Perinatal Medicine, with taxonomy code 2080N0001X.
Is Kim Chi Bui enrolled in Medicare?
Yes. Kim Chi Bui is registered in the Medicare PECOS enrollment system.
Which organization bills Medicare for Kim Chi Bui's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Kim Chi Bui reassigns Medicare benefits to Permanente Medical Group Inc (Santa Clara, CA). The 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 Kim Chi Bui'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 Kim Chi Bui was last updated on December 8, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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. Kim Chi Thanh Bui, M.D. · NPI 1174555882
Neonatal-Perinatal Medicine physician in Downey, California. Individual provider, active in the CMS NPPES registry since July 6, 2006.
## Identity
- **NPI:** 1174555882 (Entity type: Individual)
- **Enumerated:** July 6, 2006
- **Primary specialty:** Pediatrics - Neonatal-Perinatal Medicine · taxonomy 2080N0001X
- **State license:** A45053 (California)
- **Sole proprietor:** No
## Practice location
- **Address:** 9333 IMPERIAL HWY, Downey, CA 90242-2812
- **Phone:** (562) 657-7550
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** Permanente Medical Group Inc (NPI 1073606299, Santa Clara, CA), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** December 8, 2021
- **Other identifiers:** Medicaid GR0053510 (CA); Medicaid 00A450530 (CA)
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Source: [NPI Profile](https://npiprofile.com/npi/1174555882) · Data from the CMS NPPES public registry.