NPI Lens

Thammasak Mingbunjerdsuk

NPI 1720439490ActiveIndividual· Internal Medicine, Gastroenterology· Longview, WA

Internal Medicine, Gastroenterology with Peacehealth, practicing in Longview, Washington. Their prescriptions cost Medicare Part D more than their services did: $106,771 for 917 claims, against $54,583 paid for services in 2024. Lists Peacehealth St John Medical Center as a hospital affiliation.

Overview

NPI1720439490
StatusActive
Entity typeIndividual
Sole proprietorNo
NPI issuedJun 23, 2016
Last updated in NPPESApr 27, 2022
Certified by providerApr 27, 2022

Specialties and licenses

TaxonomyCodeLicenseState
Internal Medicine, Gastroenterology Primary207RG0100XMD61202611WA
Student in an Organized Health Care Education/Training Program390200000X——

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 - Gastroenterology (WA)
Accepts assignmentYes (participating)

Medicare services in 2024

Medicare patients283
Services billed493 across 29 procedure codes
Paid by Medicare$54,583

Part D prescriptions in 2024

Prescriptions (claims)917 · 1,334 30-day fills
Patients491
Total drug cost$106,771
Generic share73% of claims

Medicare sources and data years

Education and affiliations

Graduation year2014
Medicare specialtyGastroenterology

Medical group

Hospital affiliation

Source: CMS Care Compare

Industry payments (Open Payments)

None reported for 2025 or 2024.

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

Other gastroenterologists in Longview

All gastroenterologists in Washington