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Chien-Wen Yang

NPI 1548646664ActiveIndividual· Internal Medicine, Nephrology· Washington, DC

Internal Medicine, Nephrology with Medical Faculty Associates, Inc, practicing in Washington, District of Columbia. 128 Medicare patients in 2024, $37,155 paid; nearly all of their 404 Part D prescriptions were generic (92%). Vantive US Healthcare LLC was the largest of 4 companies reporting payments in 2025, $366.57 in all, mostly food and beverage. Lists George Washington Univ Hospital and 1 other hospital as hospital affiliations.

Overview

NPI1548646664
StatusActive
Entity typeIndividual
Sole proprietorNo
NPI issuedJul 31, 2015
Last updated in NPPESMay 14, 2026
Certified by providerMay 14, 2026

Specialties and licenses

TaxonomyCodeLicenseState
Internal Medicine, Nephrology Primary207RN0300XMD600004466DC

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 - Nephrology (DC); Practitioner - Nephrology (LA)
Accepts assignmentYes (participating)

Medicare services in 2024

Medicare patients128
Services billed373 across 15 procedure codes
Paid by Medicare$37,155

Part D prescriptions in 2024

Prescriptions (claims)404 · 942 30-day fills
Patients125
Total drug cost$48,047
Generic share92% of claims

Medicare sources and data years

Education and affiliations

Graduation year2010
Medicare specialtyNephrology
TelehealthOffers telehealth

Medical group

Hospital affiliations

Other facilities

Source: CMS Care Compare

Industry payments (Open Payments)

  • 2025$366.57 · 7 payments from 4 companies
  • 2024$344.13 · 3 payments from 3 companies

Top paying companies in 2025

What the 2025 payments were for

  • Food and Beverage$366.57 · 7 payments

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

Other nephrologists in Washington

All 93 nephrologists in Washington · All nephrologists in District of Columbia