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McCall Richard Walker

NPI 1457705501ActiveIndividual· Internal Medicine, Interventional Cardiology· Gray, LA

Internal Medicine, Interventional Cardiology in Gray, Louisiana, trained at Louisiana State University School of Medicine in New Orleans (class of 2016). Their prescriptions cost Medicare Part D more than their services did: $153,454 for 962 claims, against $65,796 paid for services in 2024. Angiodynamics, Inc. was the largest of 17 companies reporting payments in 2025, $8,776 in all, mostly device and supply loans.

Overview

NPI1457705501
StatusActive
Entity typeIndividual
Sole proprietorNo
NPI issuedApr 14, 2016
Last updated in NPPESOct 26, 2023
Certified by providerOct 26, 2023

Specialties and licenses

TaxonomyCodeLicenseState
Internal Medicine, Interventional Cardiology Primary207RI0011X337018LA

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 - Interventional Cardiology (LA)
Accepts assignmentYes (participating)

Medicare services in 2024

Medicare patients315
Services billed1,177 across 90 procedure codes
Paid by Medicare$65,796

Part D prescriptions in 2024

Prescriptions (claims)962 · 2,216 30-day fills
Patients247
Total drug cost$153,454
Generic share83% of claims

Medicare sources and data years

Education and affiliations

Medical schoolLouisiana State University School of Medicine in New Orleans
Graduation year2016
Medicare specialtyInterventional Cardiology
Secondary specialtiesCardiovascular Disease (Cardiology)
TelehealthOffers telehealth

Medical groups

Hospital affiliations

Source: CMS Care Compare

Industry payments (Open Payments)

  • 2025$8,776 · 89 payments from 17 companies
  • 2024$8,114 · 59 payments from 23 companies

Top paying companies in 2025

CompanyAmountPayments
Angiodynamics, Inc.$6,39418
Abbott Laboratories$492.924
Medtronic, Inc.$327.099
Novo Nordisk Inc$240.523
Cardiva Medical, Inc.$222.4212

What the 2025 payments were for

  • Long term medical supply or device loan$5,500 · 1 payment
  • Food and Beverage$3,276 · 88 payments

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

Other Internal Medicine, Interventional Cardiology providers in Gray

All Internal Medicine, Interventional Cardiology providers in Louisiana →