NPI Lens

Daniel Ryan, MD

NPI 1598393902ActiveIndividual· Internal Medicine· Clarkston, WA

Internal Medicine (MD) in Clarkston, Washington, licensed in WA, with an NPI issued in March 2020. Part D covered 9,332 prescriptions written in 2024, 86% of them generic. Pfizer Inc. was the largest of 3 companies reporting payments in 2025, $150.95 in all, mostly food and beverage.

Overview

NPI1598393902
StatusActive
Entity typeIndividual
CredentialMD
Sole proprietorNo
NPI issuedMar 31, 2020
Last updated in NPPESSep 21, 2023
Certified by providerSep 21, 2023

Specialties and licenses

TaxonomyCodeLicenseState
Internal Medicine Primary207R00000XMD61463071WA

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 4, 2026No match—
New York OMIG · Nov 4, 2026No match—
Ohio Medicaid · Nov 4, 2026No match—
Pennsylvania Medicheck · Nov 4, 2026No match—
Washington HCA · Nov 4, 2026No match—

Official OIG search · How matching works ·Bulk check a roster

Medicare

Enrollment (PECOS)Enrolled Practitioner - Family Practice (WA); Practitioner - Internal Medicine (WA)

Part D prescriptions in 2024

Prescriptions (claims)9,332 · 20,178 30-day fills
Patients547
Total drug cost$1,142,586
Generic share86% of claims

Medicare sources and data years

Industry payments (Open Payments)

  • 2025$150.95 · 9 payments from 3 companies
  • 2024$99.38 · 5 payments from 3 companies

Top paying companies in 2025

CompanyAmountPayments
Pfizer Inc.$115.097
Xeris Pharmaceuticals, Inc.$19.141
Astrazeneca Pharmaceuticals LP$16.721

What the 2025 payments were for

  • Food and Beverage$150.95 · 9 payments

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

Other Internal Medicine providers in Clarkston

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