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John Richard Chandler, MD

NPI 1518958701ActiveIndividual· Internal Medicine· Amarillo, TX

Internal Medicine (MD) in Amarillo, Texas, licensed in TX, with an NPI issued in November 2005. Their prescriptions cost Medicare Part D more than their services did: $409,748 for 5,021 claims, against $48,457 paid for services in 2024. Vertex Pharmaceuticals Incorporated reported $13.86 in payments in 2024, mostly food and beverage. Lists Bsa Hospital and 1 other hospital as hospital affiliations.

Overview

NPI1518958701
StatusActive
Entity typeIndividual
CredentialMD
Sole proprietorYes
NPI issuedNov 4, 2005
Last updated in NPPESNov 23, 2009

Specialties and licenses

TaxonomyCodeLicenseState
Internal Medicine Primary207R00000XL7684TX

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 - Internal Medicine (TX)
Accepts assignmentYes (participating)

Medicare services in 2024

Medicare patients217
Services billed706 across 21 procedure codes
Paid by Medicare$48,457

Part D prescriptions in 2024

Prescriptions (claims)5,021 · 11,921 30-day fills
Patients322
Total drug cost$409,748
Generic share88% of claims

Medicare sources and data years

Education and affiliations

Graduation year1998
Medicare specialtyInternal Medicine

Hospital affiliations

Source: CMS Care Compare

Industry payments (Open Payments)

  • 2024$13.86 · 1 payment from 1 company

Top paying companies in 2024

CompanyAmountPayments
Vertex Pharmaceuticals Incorporated$13.861

What the 2024 payments were for

  • Food and Beverage$13.86 · 1 payment

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

Other internal medicine physicians in Amarillo

All 105 internal medicine physicians in Amarillo · All internal medicine physicians in Texas