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Michael M. Halassa, MBBS, PHD

NPI 1811124639ActiveIndividual· Psychiatry & Neurology, Psychiatry· Roanoke, VA

Psychiatry & Neurology, Psychiatry (MBBS, PHD) with Uhs of Fuller Inc, practicing in Roanoke, Virginia. Their prescriptions cost Medicare Part D more than their services did: $52,280 for 412 claims, against $28,017 paid for services in 2024. E.R. Squibb & Sons, L.L.C. was the largest of 2 companies reporting payments in 2025, $682.41 in all, mostly food and beverage.

Overview

NPI1811124639
StatusActive
Entity typeIndividual
CredentialMBBS, PHD
Sole proprietorNo
NPI issuedJun 19, 2009
Last updated in NPPESSep 1, 2026
Certified by providerSep 1, 2026

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 - Psychiatry (MA)
Accepts assignmentYes (participating)

Medicare services in 2024

Medicare patients115
Services billed683 across 3 procedure codes
Paid by Medicare$28,017

Part D prescriptions in 2024

Prescriptions (claims)412 · 421 30-day fills
Patients51
Total drug cost$52,280
Generic share92% of claims

Medicare sources and data years

Education and affiliations

Graduation year2004
Medicare specialtyPsychiatry

Medical group

Source: CMS Care Compare

Industry payments (Open Payments)

  • 2025$682.41 · 9 payments from 2 companies

Top paying companies in 2025

CompanyAmountPayments
E.R. Squibb & Sons, L.L.C.$546.498
Janssen Pharmaceuticals, Inc$135.921

What the 2025 payments were for

  • Food and Beverage$682.41 · 9 payments

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

Other psychiatrists in Roanoke

All 97 psychiatrists in Roanoke · All psychiatrists in Virginia