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Spencer G. Duncan, D.O.

NPI 1497934061ActiveIndividual· Family Medicine· Valley Center, KS

Family Medicine (D.O.) in Valley Center, Kansas, trained at Kansas City University of Physicians and Surgeons (class of 2005). Their prescriptions cost Medicare Part D more than their services did: $439,019 for 7,980 claims, against $102,281 paid for services in 2024. Lilly USA, LLC was the largest of 20 companies reporting payments in 2025, $1,710 in all, mostly food and beverage.

Overview

NPI1497934061
StatusActive
Entity typeIndividual
CredentialD.O.
Sole proprietorYes
NPI issuedOct 30, 2007
Last updated in NPPESJan 23, 2015

Specialties and licenses

TaxonomyCodeLicenseState
Family Medicine Primary207Q00000X05-34265KS

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 - Family Practice (KS)
Accepts assignmentYes (participating)

Medicare services in 2024

Medicare patients369
Services billed5,010 across 99 procedure codes
Paid by Medicare$102,281

Part D prescriptions in 2024

Prescriptions (claims)7,980 · 16,574 30-day fills
Patients617
Total drug cost$439,019
Generic share89% of claims

Medicare sources and data years

Education and affiliations

Medical schoolKansas City University of Physicians and Surgeons
Graduation year2005
Medicare specialtyFamily Practice
Secondary specialtiesEmergency Medicine

Medical group

Hospital affiliations

Other facilities

Source: CMS Care Compare

Industry payments (Open Payments)

  • 2025$1,710 · 155 payments from 20 companies
  • 2024$785.94 · 52 payments from 13 companies

Top paying companies in 2025

What the 2025 payments were for

  • Food and Beverage$1,710 · 155 payments

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

Other family medicine physicians in Valley Center

All family medicine physicians in Kansas