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Matthew S. Ray, DO

NPI 1275952541ActiveIndividual· Internal Medicine, Nephrology· Spokane, WA

Internal Medicine, Nephrology (DO) in Spokane, Washington, trained at Lake Erie College of Osteopathic Medicine, Erie (class of 2014). Their prescriptions cost Medicare Part D more than their services did: $479,507 for 2,245 claims, against $136,721 paid for services in 2024. Gilead Sciences, Inc. was the largest of 3 companies reporting payments in 2025, $1,747 in all, mostly consulting fees.

Overview

NPI1275952541
StatusActive
Entity typeIndividual
CredentialDO
Sole proprietorYes
NPI issuedApr 15, 2014
Last updated in NPPESOct 12, 2026
Certified by providerOct 12, 2026

Specialties and licenses

TaxonomyCodeLicenseState
Internal Medicine, Nephrology Primary207RN0300XOP60645891WA

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 (WA)
Accepts assignmentYes (participating)

Medicare services in 2024

Medicare patients325
Services billed1,422 across 28 procedure codes
Paid by Medicare$136,721

Part D prescriptions in 2024

Prescriptions (claims)2,245 · 5,153 30-day fills
Patients327
Total drug cost$479,507
Generic share84% of claims

Medicare sources and data years

Education and affiliations

Medical schoolLake Erie College of Osteopathic Medicine, Erie
Graduation year2014
Medicare specialtyInternal Medicine
Secondary specialtiesNephrology

Medical group

Hospital affiliations

Other facilities

Source: CMS Care Compare

Industry payments (Open Payments)

  • 2025$1,747 · 6 payments from 3 companies
  • 2024$937.72 · 10 payments from 4 companies

Top paying companies in 2025

What the 2025 payments were for

  • Consulting Fee$1,440 · 1 payment
  • Food and Beverage$306.86 · 5 payments

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

Other nephrologists in Spokane

All 35 nephrologists in Spokane · All nephrologists in Washington