What is Charles Bui's specialty?

Charles Bui (NPI 1013100338) is a Medicare-billing provider whose primary specialty is Hospitalist in Harbor City, CA.

Where does Charles Bui practice?

Charles Bui practices in Harbor City, CA, based on the location reported in the CMS Medicare provider datasets for NPI 1013100338.

How much does Medicare pay Charles Bui?

Charles Bui (NPI 1013100338) received approximately $4K in total Medicare Part B payments, serving 26 beneficiaries, per the CMS Medicare Physician & Other Practitioners dataset.

PROVIDER PROFILE · NPI 1013100338

Charles BuiM.D.

PRACTICEKAISER PERMENENTESee all providers at this practice →

HospitalistHarbor City, CAI

MEDICARE UTILIZATION · PART B · 2024

Total beneficiaries

Unique beneficiaries

—

Total services

Distinct HCPCS

Medicare payment

$2K

Peer benchmark

Total Medicare services vs. 1,917 Hospitalist providers in CA — bottom quintile (cohort median 446).

PRESCRIBING · PART D · 2024

Total Rx claims

475

Beneficiaries

—

Total drug cost

$19K

Distinct drugs

Brand share

35.4%

Top prescribed drugs

Furosemide48 claims

Albuterol Sulfate43 claims

Hydrocodone/Acetaminophen36 claims

Amlodipine Besylate33 claims

Amoxicillin/Potassium Clav27 claims

QUALITY · MIPS · 2024

No data available for this provider in 2024.

INDUSTRY PAYMENTS · OPEN PAYMENTS · 2025

No data available for this provider in 2025.

FACILITY AFFILIATIONS

Hospital & Facility Affiliations (1)

CCN 050411

Hospital

REFERRAL NETWORK

Where Charles Bui's patients come from & go

Directional shared-patient flow from Medicare claims — who sends patients to this provider (inbound) and where this provider's patients go next (outbound). 1 inbound referrers · 1 outbound destinations.

Receives referrals from

Inbound — who sends patients here

Physician	Patients	Visits
KAISER FOUNDATION HOSPITALS	24	41

Refers patients to

Outbound — where patients go next

Physician	Patients	Visits
KAISER FOUNDATION HOSPITALS	103	131

Source: CMS Physician Shared Patient Patterns (30-day window, Medicare FFS). Direction = a beneficiary seen by the first provider, then the second, within 30 days; a proxy for referral, not a documented referral. Pairs with fewer than 11 shared beneficiaries are suppressed.

CROSS-REFERENCE

Related data on other Healthparse brands

ProviderScore

OIG/SAM exclusion screening, sanctions history

Healthparse Signals

Monitor this provider for changes — dated NPI change events