Skip to content

Steven D. Ko, MD

NPI 1992771257ActiveIndividual· Internal Medicine, Rheumatology· Fort Wayne, IN

Internal Medicine, Rheumatology (MD) in Fort Wayne, Indiana, trained at Loma Linda University School of Medicine (class of 1990). Their prescriptions cost Medicare Part D more than their services did: $2,302,872 for 4,629 claims, against $1,245,865 paid for services in 2024. Amgen Inc. was the largest of 5 companies reporting payments in 2025, $128.40 in all, mostly food and beverage.

Overview

NPI1992771257
StatusActive
Entity typeIndividual
CredentialMD
Sole proprietorNo
NPI issuedFeb 27, 2006
Last updated in NPPESSep 29, 2020
Certified by providerSep 29, 2020

Specialties and licenses

TaxonomyCodeLicenseState
Internal Medicine, Rheumatology Primary207RR0500X01048660AIN

About license numbers in NPPES

Exclusion screening

ListResultDetails
HHS-OIG LEIE · Oct 9, 2026No matchChecked by NPI and by name + state
North Carolina Medicaid · Nov 10, 2026No match—
New York OMIG · Nov 10, 2026No match—
Ohio Medicaid · Nov 10, 2026No match—
Pennsylvania Medicheck · Nov 10, 2026No match—
Washington HCA · Nov 10, 2026No match—

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

Medicare

Enrollment (PECOS)Enrolled Practitioner - Rheumatology (IN)
Accepts assignmentYes (participating)

Medicare services in 2024

Medicare patients436
Services billed93,936 across 37 procedure codes
Paid by Medicare$1,245,865

Part D prescriptions in 2024

Prescriptions (claims)4,629 · 10,324 30-day fills
Patients577
Total drug cost$2,302,872
Generic share88% of claims

Medicare sources and data years

Education and affiliations

Medical schoolLoma Linda University School of Medicine
Graduation year1990
Medicare specialtyRheumatology
Secondary specialtiesInternal Medicine

Medical group

Hospital affiliations

Source: CMS Care Compare

Industry payments (Open Payments)

  • 2025$128.40 · 7 payments from 5 companies
  • 2024$104.16 · 6 payments from 4 companies

Top paying companies in 2025

What the 2025 payments were for

  • Food and Beverage$128.40 · 7 payments

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

Other Internal Medicine, Rheumatology providers in Fort Wayne

All Internal Medicine, Rheumatology providers in Indiana →