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Stephen Leslie Herr, MD

NPI 1326005091ActiveIndividual· Internal Medicine, Gastroenterology· West Hills, CA

Internal Medicine, Gastroenterology (MD) in West Hills, California, licensed in CA, with an NPI issued in April 2006. Their prescriptions cost Medicare Part D more than their services did: $220,963 for 838 claims, against $46,867 paid for services in 2024. Janssen Biotech, Inc. was the largest of 2 companies reporting payments in 2025, $100.85 in all, mostly education.

Overview

NPI1326005091
StatusActive
Entity typeIndividual
CredentialMD
Sole proprietorNo
NPI issuedApr 27, 2006
Last updated in NPPESOct 9, 2007

Specialties and licenses

TaxonomyCodeLicenseState
Internal Medicine, Gastroenterology Primary207RG0100XG19501CA

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)Not in the public enrollment file of Oct 1, 2026
Accepts assignmentYes (participating)

Medicare services in 2024

Medicare patients214
Services billed656 across 30 procedure codes
Paid by Medicare$46,867

Part D prescriptions in 2024

Prescriptions (claims)838 · 1,816 30-day fills
Patients131
Total drug cost$220,963
Generic share90% of claims

Medicare sources and data years

Industry payments (Open Payments)

  • 2025$100.85 · 2 payments from 2 companies
  • 2024$986.88 · 24 payments from 8 companies

Top paying companies in 2025

CompanyAmountPayments
Janssen Biotech, Inc.$84.991
Abbvie Inc.$15.861

What the 2025 payments were for

  • Education$84.99 · 1 payment
  • Food and Beverage$15.86 · 1 payment

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

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