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Sarah Abdel Massih, MD

NPI 1508381120ActiveIndividual· Internal Medicine, Nephrology· Kingsport, TN

Internal Medicine, Nephrology (MD) with Regional Kidney Care PC, practicing in Kingsport, Tennessee. Their prescriptions cost Medicare Part D more than their services did: $274,767 for 1,633 claims, against $48,310 paid for services in 2024. Travere Therapeutics, Inc. reported $3.52 in payments in 2025, mostly education. Lists Johnson City Medical Center and 3 other hospitals as hospital affiliations.

Overview

NPI1508381120
StatusActive
Entity typeIndividual
CredentialMD
Sole proprietorNo
NPI issuedAug 4, 2017
Last updated in NPPESSep 23, 2022
Certified by providerSep 23, 2022

Specialties and licenses

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 - Nephrology (TN); Practitioner - Nephrology (VA)
Accepts assignmentYes (participating)

Medicare services in 2024

Medicare patients243
Services billed729 across 18 procedure codes
Paid by Medicare$48,310

Part D prescriptions in 2024

Prescriptions (claims)1,633 · 2,464 30-day fills
Patients212
Total drug cost$274,767
Generic share81% of claims

Medicare sources and data years

Education and affiliations

Graduation year2014
Medicare specialtyNephrology
Secondary specialtiesInternal Medicine

Medical group

Hospital affiliations

Other facilities

Source: CMS Care Compare

Industry payments (Open Payments)

  • 2025$3.52 · 2 payments from 1 company
  • 2024$125.03 · 7 payments from 5 companies

Top paying companies in 2025

CompanyAmountPayments
Travere Therapeutics, Inc.$3.522

What the 2025 payments were for

  • Education$3.52 · 2 payments

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

Other Internal Medicine, Nephrology providers in Kingsport

All Internal Medicine, Nephrology providers in Tennessee →