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Jason R. Haldas, M.D.

NPI 1275532541ActiveIndividual· Internal Medicine, Hematology & Oncology· New London, CT

Internal Medicine, Hematology & Oncology (M.D.) in New London, Connecticut, trained at University of Virginia School of Medicine (class of 1996). Their prescriptions cost Medicare Part D more than their services did: $5,504,977 for 2,147 claims, against $96,193 paid for services in 2024.

Overview

NPI1275532541
StatusActive
Entity typeIndividual
CredentialM.D.
Sole proprietorNo
NPI issuedJul 19, 2005
Last updated in NPPESAug 23, 2010

Specialties and licenses

TaxonomyCodeLicenseState
Internal Medicine, Hematology & Oncology Primary207RH0003X040056CT

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 - Hematology/Oncology (CT)
Accepts assignmentYes (participating)

Medicare services in 2024

Medicare patients403
Services billed1,624 across 11 procedure codes
Paid by Medicare$96,193

Part D prescriptions in 2024

Prescriptions (claims)2,147 · 2,989 30-day fills
Patients300
Total drug cost$5,504,977
Generic share72% of claims

Medicare sources and data years

Education and affiliations

Medical schoolUniversity of Virginia School of Medicine
Graduation year1996
Medicare specialtyHematology/Oncology
Secondary specialtiesInternal Medicine

Medical group

Hospital affiliations

Other facilities

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

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