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John Herrington Kosko, M.D.

NPI 1295937928ActiveIndividual· Orthopaedic Surgery, Foot and Ankle Surgery· Hattiesburg, MS

Orthopaedic Surgery, Foot and Ankle Surgery (M.D.) in Hattiesburg, Mississippi, trained at University of Mississippi School of Medicine (class of 2005). 706 Medicare patients in 2024, $180,394 paid; nearly all of their 329 Part D prescriptions were generic (97%). Paragon 28, Inc. was the largest of 9 companies reporting payments in 2025, $12,334 in all, mostly travel and lodging.

Overview

NPI1295937928
StatusActive
Entity typeIndividual
CredentialM.D.
Sole proprietorNo
NPI issuedJun 4, 2007
Last updated in NPPESJul 27, 2011

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 - Orthopedic Surgery (MS)
Accepts assignmentYes (participating)

Medicare services in 2024

Medicare patients706
Services billed5,686 across 135 procedure codes
Paid by Medicare$180,394

Part D prescriptions in 2024

Prescriptions (claims)329 · 342 30-day fills
Patients165
Total drug cost$2,221
Generic share97% of claims

Medicare sources and data years

Education and affiliations

Medical schoolUniversity of Mississippi School of Medicine
Graduation year2005
Medicare specialtyOrthopedic Surgery

Medical group

Hospital affiliations

Other facilities

Source: CMS Care Compare

Industry payments (Open Payments)

  • 2025$12,334 · 71 payments from 9 companies
  • 2024$3,210 · 11 payments from 8 companies

Top paying companies in 2025

What the 2025 payments were for

  • Travel and Lodging$6,264 · 27 payments
  • Royalty or License$4,402 · 4 payments
  • Food and Beverage$1,668 · 40 payments

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