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Matthew Steven Kook

NPI 1255033973ActiveIndividual· Nurse Anesthetist, Certified Registered· Pasadena, CA

Nurse Anesthetist, Certified Registered with Orange Coast Anesthesia Inc and 1 other group, practicing in Pasadena, California. Medicare paid $10,968 for services to 71 patients in 2024. Merck Sharp & Dohme LLC reported $18.17 in payments in 2025, mostly food and beverage. Lists Glendale Mem Hospital & Hlth Center as a hospital affiliation.

Overview

NPI1255033973
StatusActive
Entity typeIndividual
Sole proprietorNo
NPI issuedMar 17, 2023
Last updated in NPPESMay 31, 2023
Certified by providerMay 31, 2023

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 - Certified Registered Nurse Anesthetist (CRNA) (CA)
Accepts assignmentYes (participating)

Medicare services in 2024

Medicare patients71
Services billed79 across 28 procedure codes
Paid by Medicare$10,968

Medicare sources and data years

Education and affiliations

Graduation year2016
Medicare specialtyCertified Registered Nurse Anesthetist (Crna)

Medical groups

Hospital affiliation

Source: CMS Care Compare

Industry payments (Open Payments)

  • 2025$18.17 · 1 payment from 1 company
  • 2024$41.50 · 2 payments from 1 company

Top paying companies in 2025

CompanyAmountPayments
Merck Sharp & Dohme LLC$18.171

What the 2025 payments were for

  • Food and Beverage$18.17 · 1 payment

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

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