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VIET LAC BUI MD, PHD
NPI 1396092227
Internal Medicine - Rheumatology in Torrance, CA

Active since August 09, 2012PECOS Enrolled
1000 W CARSON ST # 470, TORRANCE, CA 90502(310) 222-3697(310) 782-0595 Get Directions Write a Review

NPPES record last updated: November 26, 2018. Verified against the NPPES registry weekly; last sync: November 08, 2026.

Record update history: Nov 26, 2018, Jul 31, 2018 (2 updates tracked since 2018).

About Viet Lac Bui Md, Phd NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

VIET LAC BUI MD, PHD (NPI 1396092227) is an individual rheumatology provider in Torrance, California, licensed in California (A128401) and active in the NPI registry since August 2012. He is enrolled in Medicare PECOS, maintains a secondary practice location in Los Angeles, and is a graduate of New York University School Of Medicine (2012).

NPPES Registry Identity

NPI1396092227
Entity TypeIndividualMale
Primary Taxonomy207RR0500X
Provider Legal NameVIET LAC BUICredential: MD, PHD
Location Address1000 W CARSON ST # 470Torrance, CA 90502-2059
Mailing Address1000 W Carson St # 470Torrance, CA 90502-2059 · (310) 222-3697 · Fax (310) 782-0595
Phone(310) 222-3697
Fax(310) 782-0595
Sole ProprietorYes
Medical School CMSNew York University School Of MedicineGraduated 2012
Enumeration DateAugust 9, 2012
Last NPPES UpdateNovember 26, 20182 updates tracked since enumeration
✔ NPI 1396092227 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · RheumatologyAllopathic & Osteopathic Physicians
Taxonomy Code207RR0500X
License✔ Licensed in CA · A128401
Definition
An internist who treats diseases of joints, muscle, bones and tendons. This specialist diagnoses and treats arthritis, back pain, muscle strains, common athletic injuries and collagen diseases.
1000 W CARSON ST # 470, Torrance, CA 90502
Open in Google Maps ↗

Secondary Practice Location 1

Location 1200 Ucla Medical Plz Ste 365-BLos Angeles, CA 90095 · Phone (310) 825-2448

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Viet Lac Bui Md, Phd is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

PECOS PAC ID9638441231
PECOS Enrollment IDI20170816003427
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignment

Medicare enrollment records show Viet Bui reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

County Of Los Angeles
7.0 mi
Clinic/Center
1670 E 120TH ST
Los Angeles, CA 90059
  • Reassigned Medicare billing, California enrollment
  • 435 clinicians in this Medicare group
NPI 1780877613 (310) 668-5201

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 90502 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$142.39 typical visit price
range $62.96 – $187.60
Typical copayment $35.59 (range $15.74 – $46.90)
Most-billed visit code 99204
Established Patient
$109.96 typical visit price
range $20.84 – $153.61
Typical copayment $27.49 (range $5.21 – $38.40)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

ROSALINDA CIFRA MORAN NP
Nurse Practitioner (Family)
1000 W CARSON ST # 470
TORRANCE, CA 90502
Los Angeles County (310) 222-3690

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 Viet Bui's NPI number?

The NPI number for Viet Bui is 1396092227. It was assigned to this individual provider in the NPPES registry on August 9, 2012.

Where is Viet Bui located?

Viet Bui practices at 1000 W Carson St # 470, Torrance, CA 90502. The listed phone number is (310) 222-3697.

What is Viet Bui's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Rheumatology, with taxonomy code 207RR0500X.

Is Viet Bui enrolled in Medicare?

Yes. Viet Bui is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Viet Bui's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Viet Bui reassigns Medicare benefits to County Of Los Angeles (Los Angeles, 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 Viet 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 Viet Bui was last updated on November 26, 2018. 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.