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David Manuel Alvarez-Barrios, MD

NPI 1871578385ActiveIndividual· Internal Medicine· Chattanooga, TN

Internal Medicine (MD) with Concord Medical Group of Kentucky PLLC and 1 other group, practicing in Chattanooga, Tennessee. In 2024 Medicare paid $59,111 for 348 patients, and Part D covered 663 of their prescriptions, 81% of them generic. Abbvie Inc. was the largest of 2 companies reporting payments in 2025, $114.49 in all, mostly food and beverage. Lists Adventhealthmanchester and 1 other hospital as hospital affiliations.

Overview

NPI1871578385
StatusActive
Entity typeIndividual
CredentialMD
Sole proprietorNo
NPI issuedDec 8, 2005
Last updated in NPPESSep 23, 2026
Certified by providerSep 23, 2026

Specialties and licenses

TaxonomyCodeLicenseState
Internal Medicine Primary207R00000XME142880FL
Hospitalist208M00000X31675TN
Internal Medicine207R00000X31675TN

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 (FL); Practitioner - Internal Medicine (GA); Practitioner - Internal Medicine (IN); Practitioner - Internal Medicine (KY); Practitioner - Internal Medicine (NC); Practitioner - Internal Medicine (TN)
Accepts assignmentYes (participating)

Medicare services in 2024

Medicare patients348
Services billed791 across 6 procedure codes
Paid by Medicare$59,111

Part D prescriptions in 2024

Prescriptions (claims)663 · 815 30-day fills
Patients242
Total drug cost$63,813
Generic share81% of claims

Medicare sources and data years

Education and affiliations

Graduation year1994
Medicare specialtyInternal Medicine

Medical groups

Hospital affiliations

Other facilities

Source: CMS Care Compare

Industry payments (Open Payments)

  • 2025$114.49 · 8 payments from 2 companies
  • 2024$103.56 · 5 payments from 3 companies

Top paying companies in 2025

CompanyAmountPayments
Abbvie Inc.$59.933
Zoll Services LLC (A/K/A Zoll Lifecor Corp)$54.565

What the 2025 payments were for

  • Food and Beverage$114.49 · 8 payments

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

Other internal medicine physicians in Chattanooga

All 240 internal medicine physicians in Chattanooga · All internal medicine physicians in Tennessee