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Hanh M. Bui, M.D.

NPI 1275519175ActiveIndividual· Internal Medicine, Cardiovascular Disease· Vista, CA

Internal Medicine, Cardiovascular Disease (M.D.) in Vista, California, trained at Johns Hopkins University School of Medicine (class of 1998). Their prescriptions cost Medicare Part D more than their services did: $2,151,397 for 9,065 claims, against $1,010,328 paid for services in 2024. Kestra Medical Technology Services, Inc. was the largest of 17 companies reporting payments in 2025, $12,236 in all, mostly consulting fees.

Overview

NPI1275519175
StatusActive
Entity typeIndividual
CredentialM.D.
Sole proprietorNo
NPI issuedDec 22, 2005
Last updated in NPPESFeb 1, 2023
Certified by providerFeb 1, 2023

Specialties and licenses

About license numbers in NPPES

Exclusion screening

ListResultDetails
HHS-OIG LEIE · Nov 10, 2026No matchChecked by NPI and by name + state
North Carolina Medicaid · Nov 11, 2026No match—
New York OMIG · Nov 11, 2026No match—
Ohio Medicaid · Nov 11, 2026No match—
Pennsylvania Medicheck · Nov 11, 2026No match—
Washington HCA · Nov 11, 2026No match—

Official OIG search · How matching works ·Bulk check a roster

Medicare

Enrollment (PECOS)Enrolled Practitioner - Cardiovascular Disease (Cardiology) (CA)
Accepts assignmentYes (participating)

Medicare services in 2024

Medicare patients1,328
Services billed15,966 across 96 procedure codes
Paid by Medicare$1,010,328

Part D prescriptions in 2024

Prescriptions (claims)9,065 · 19,298 30-day fills
Patients1,365
Total drug cost$2,151,397
Generic share77% of claims

Medicare sources and data years

Education and affiliations

Medical schoolJohns Hopkins University School of Medicine
Graduation year1998
Medicare specialtyCardiovascular Disease (Cardiology)
TelehealthOffers telehealth

Medical group

Hospital affiliations

Source: CMS Care Compare

Industry payments (Open Payments)

  • 2025$12,236 · 59 payments from 17 companies
  • 2024$1,466 · 52 payments from 21 companies

Top paying companies in 2025

What the 2025 payments were for

  • Consulting Fee$10,125 · 2 payments
  • Food and Beverage$2,111 · 57 payments

Receiving payments does not imply wrongdoing. What Open Payments covers ·original records

Other Internal Medicine, Cardiovascular Disease providers in Vista

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