DR. STEVEN BUI D.O.
NPI 1508252883
Anesthesiology in Santa Ana, CA
About Dr. Steven Bui D.o. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. STEVEN BUI D.O. (NPI 1508252883) is an individual anesthesiology provider in Santa Ana, California, licensed in California (17128) and active in the NPI registry since April 2015. He is enrolled in Medicare PECOS and is a graduate of Western University Of Health Sciences College Of Dental Med (2015).
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. Steven Bui D.o. 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
4Medicare enrollment records show Steven Bui reassigns Medicare billing to 4 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Santa Ana, CA 92705
- Reassigned Medicare billing, California enrollment
- 31 clinicians in this Medicare group
Orange, CA 92869
- Reassigned Medicare billing, California enrollment
- 168 clinicians in this Medicare group
Lynwood, CA 90262
- Reassigned Medicare billing, California enrollment
- 83 clinicians in this Medicare group
Los Angeles, CA 90015
- Reassigned Medicare billing, California enrollment
- 76 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.
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.
SANTA ANA, CA 92705
SANTA ANA, CA 92705
SANTA ANA, CA 92705
SANTA ANA, CA 92705
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 Steven Bui's NPI number?
The NPI number for Steven Bui is 1508252883. It was assigned to this individual provider in the NPPES registry on April 13, 2015.
Where is Steven Bui located?
Steven Bui practices at 1001 N Tustin Ave, Santa Ana, CA 92705. The listed phone number is (714) 953-3500.
What is Steven Bui's specialty?
The primary specialty registered for this NPI is Anesthesiology with taxonomy code 207L00000X.
Is Steven Bui enrolled in Medicare?
Yes. Steven Bui 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 Steven Bui's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Steven Bui reassigns Medicare benefits to 4 organizations: Anesthesia Associates Of Southern California PC (Santa Ana, CA), Orange Coast Anesthesia Inc (Orange, CA), Landmark Anesthesia Medical Group (Lynwood, CA) and Socal Anesthesia Solutions, Inc (Los Angeles, CA). 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 Steven 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 Steven Bui was last updated on June 27, 2019. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 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.