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Christine Hammer, MD

NPI 1821389255ActiveIndividual· Neurological Surgery· Olympia, WA

Neurological Surgery (MD) in Olympia, Washington, trained at Indiana University School of Medicine (class of 2011). 353 Medicare patients in 2024, $208,838 paid; nearly all of their 1,040 Part D prescriptions were generic (98%). Mml US, Inc. reported $225.37 in payments in 2025, mostly food and beverage.

Overview

NPI1821389255
StatusActive
Entity typeIndividual
CredentialMD
Sole proprietorNo
NPI issuedApr 19, 2011
Last updated in NPPESJun 4, 2026
Certified by providerJun 4, 2026

Specialties and licenses

TaxonomyCodeLicenseState
Neurological Surgery Primary207T00000XMD60937237WA

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 - Neurosurgery (WA)
Accepts assignmentYes (participating)

Medicare services in 2024

Medicare patients353
Services billed1,520 across 69 procedure codes
Paid by Medicare$208,838

Part D prescriptions in 2024

Prescriptions (claims)1,040 · 1,079 30-day fills
Patients234
Total drug cost$7,431
Generic share98% of claims

Medicare sources and data years

Education and affiliations

Medical schoolIndiana University School of Medicine
Graduation year2011
Medicare specialtyNeurosurgery
TelehealthOffers telehealth

Medical group

Hospital affiliations

Source: CMS Care Compare

Industry payments (Open Payments)

  • 2025$225.37 · 1 payment from 1 company
  • 2024$190.91 · 3 payments from 2 companies

Top paying companies in 2025

CompanyAmountPayments
Mml US, Inc.$225.371

What the 2025 payments were for

  • Food and Beverage$225.37 · 1 payment

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

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