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David Chaar, MD

NPI 1417454356ActiveIndividual· Psychiatry & Neurology, Neurology· Sherman, TX

Psychiatry & Neurology, Neurology (MD) in Sherman, Texas, trained at Wayne State University School of Medicine (class of 2018). Their prescriptions cost Medicare Part D more than their services did: $704,809 for 2,291 claims, against $263,506 paid for services in 2024. Janssen Biotech, Inc. was the largest of 26 companies reporting payments in 2025, $1,686 in all, mostly food and beverage.

Overview

NPI1417454356
StatusActive
Entity typeIndividual
CredentialMD
Sole proprietorNo
NPI issuedApr 8, 2018
Last updated in NPPESNov 14, 2023
Certified by providerNov 14, 2023

Specialties and licenses

TaxonomyCodeLicenseState
Psychiatry & Neurology, Neurology Primary2084N0400XU3179TX
Student in an Organized Health Care Education/Training Program390200000X——

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 - Neurology (TX)
Accepts assignmentYes (participating)

Medicare services in 2024

Medicare patients429
Services billed7,179 across 75 procedure codes
Paid by Medicare$263,506

Part D prescriptions in 2024

Prescriptions (claims)2,291 · 3,279 30-day fills
Patients296
Total drug cost$704,809
Generic share92% of claims

Medicare sources and data years

Education and affiliations

Medical schoolWayne State University School of Medicine
Graduation year2018
Medicare specialtyNeurology
TelehealthOffers telehealth

Medical group

Hospital affiliation

Other facilities

Source: CMS Care Compare

Industry payments (Open Payments)

  • 2025$1,686 · 73 payments from 26 companies
  • 2024$786.72 · 40 payments from 17 companies

Top paying companies in 2025

CompanyAmountPayments
Janssen Biotech, Inc.$185.534
Ucb, Inc.$169.433
Abbvie Inc.$162.2913
Lundbeck LLC$138.468
Amgen Inc.$123.865

What the 2025 payments were for

  • Food and Beverage$1,671 · 72 payments
  • Education$14.95 · 1 payment

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

Other Psychiatry & Neurology, Neurology providers in Sherman

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