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Mario Lysse, MD

NPI 1801106059ActiveIndividual· Internal Medicine· Belchertown, MA

Internal Medicine (MD) with Baystate Medical Practices Inc, practicing in Belchertown, Massachusetts. Their prescriptions cost Medicare Part D more than their services did: $613,002 for 6,825 claims, against $71,353 paid for services in 2024. Exact Sciences Corporation was the largest of 2 companies reporting payments in 2025, $33.37 in all, mostly food and beverage. Lists Baystate Franklin Medical Center and 2 other hospitals as hospital affiliations.

Overview

NPI1801106059
StatusActive
Entity typeIndividual
CredentialMD
Sole proprietorNo
NPI issuedOct 20, 2010
Last updated in NPPESJul 14, 2020
Certified by providerJul 14, 2020

Specialties and licenses

TaxonomyCodeLicenseState
Internal Medicine Primary207R00000X246152MA

About license numbers in NPPES

Exclusion screening

ListResultDetails
HHS-OIG LEIE · Oct 9, 2026No matchChecked by NPI and by name + state
North Carolina Medicaid · Nov 10, 2026No match—
New York OMIG · Nov 10, 2026No match—
Ohio Medicaid · Nov 10, 2026No match—
Pennsylvania Medicheck · Nov 10, 2026No match—
Washington HCA · Nov 10, 2026No match—

Official OIG search · How matching works ·Bulk check a roster

Medicare

Enrollment (PECOS)Enrolled Practitioner - Internal Medicine (MA)
Accepts assignmentYes (participating)

Medicare services in 2024

Medicare patients355
Services billed1,029 across 21 procedure codes
Paid by Medicare$71,353

Part D prescriptions in 2024

Prescriptions (claims)6,825 · 15,644 30-day fills
Patients575
Total drug cost$613,002
Generic share87% of claims

Medicare sources and data years

Education and affiliations

Graduation year1991
Medicare specialtyInternal Medicine
TelehealthOffers telehealth

Medical group

Hospital affiliations

Other facilities

Source: CMS Care Compare

Industry payments (Open Payments)

  • 2025$33.37 · 2 payments from 2 companies

Top paying companies in 2025

CompanyAmountPayments
Exact Sciences Corporation$19.761
E.R. Squibb & Sons, L.L.C.$13.611

What the 2025 payments were for

  • Food and Beverage$33.37 · 2 payments

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

Other Internal Medicine providers in Belchertown

All Internal Medicine providers in Massachusetts →