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James Yin Han, MD

NPI 1144675414ActiveIndividual· Internal Medicine, Gastroenterology· Las Vegas, NV

Internal Medicine, Gastroenterology (MD) in Las Vegas, Nevada, trained at University of Virginia School of Medicine (class of 2016). Their prescriptions cost Medicare Part D more than their services did: $766,877 for 1,322 claims, against $63,493 paid for services in 2024. Abbvie Inc. was the largest of 21 companies reporting payments in 2025, $37,064 in all, mostly speaking and faculty fees.

Overview

NPI1144675414
StatusActive
Entity typeIndividual
CredentialMD
Sole proprietorYes
NPI issuedApr 25, 2016
Last updated in NPPESAug 2, 2022
Certified by providerAug 2, 2022

Specialties and licenses

TaxonomyCodeLicenseState
Internal Medicine, Gastroenterology Primary207RG0100X22010NV
Internal Medicine207R00000XA153319CA

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 - Gastroenterology (NV)
Accepts assignmentYes (participating)

Medicare services in 2024

Medicare patients281
Services billed653 across 35 procedure codes
Paid by Medicare$63,493

Part D prescriptions in 2024

Prescriptions (claims)1,322 · 1,921 30-day fills
Patients479
Total drug cost$766,877
Generic share81% of claims

Medicare sources and data years

Education and affiliations

Medical schoolUniversity of Virginia School of Medicine
Graduation year2016
Medicare specialtyGastroenterology

Medical group

Hospital affiliations

Source: CMS Care Compare

Industry payments (Open Payments)

  • 2025$37,064 · 117 payments from 21 companies
  • 2024$5,899 · 103 payments from 16 companies

Top paying companies in 2025

CompanyAmountPayments
Abbvie Inc.$35,79763
Janssen Biotech, Inc.$328.709
Genzyme Corporation$159.3313
Lilly USA, LLC$125.013
Pfizer Inc.$112.386

What the 2025 payments were for

  • Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program$32,300 · 14 payments
  • Food and Beverage$3,060 · 95 payments
  • Travel and Lodging$1,619 · 7 payments
  • Education$84.99 · 1 payment

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

Other gastroenterologists in Las Vegas

All 85 gastroenterologists in Las Vegas · All gastroenterologists in Nevada