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Douglas Parker, MD

NPI 1134137045ActiveIndividual· Emergency Medicine· Billings, MT

Emergency Medicine (MD) in Billings, Montana, trained at Stanford University School of Medicine (class of 1989). 394 Medicare patients in 2024, $48,302 paid; nearly all of their 265 Part D prescriptions were generic (94%).

Overview

NPI1134137045
StatusActive
Entity typeIndividual
CredentialMD
Sole proprietorNo
NPI issuedAug 4, 2006
Last updated in NPPESJul 8, 2007

Specialties and licenses

TaxonomyCodeLicenseState
Emergency Medicine Primary207P00000X7190MT

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 - Emergency Medicine (MT)
Accepts assignmentYes (participating)

Medicare services in 2024

Medicare patients394
Services billed459 across 27 procedure codes
Paid by Medicare$48,302

Part D prescriptions in 2024

Prescriptions (claims)265 · 267 30-day fills
Patients164
Total drug cost$5,857
Generic share94% of claims

Medicare sources and data years

Education and affiliations

Medical schoolStanford University School of Medicine
Graduation year1989
Medicare specialtyEmergency Medicine

Medical groups

Hospital affiliations

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 emergency medicine physicians in Billings

All 45 emergency medicine physicians in Billings · All emergency medicine physicians in Montana