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Gregory Alan Abel, MD

NPI 1285611954ActiveIndividual· Internal Medicine, Hematology & Oncology· Boston, MA

Internal Medicine, Hematology & Oncology (MD) in Boston, Massachusetts, trained at Columbia University College of Physicians and Surgeons (class of 2000). Their prescriptions cost Medicare Part D more than their services did: $163,814 for 73 claims, against $20,351 paid for services in 2024.

Overview

NPI1285611954
StatusActive
Entity typeIndividual
CredentialMD
Sole proprietorNo
NPI issuedDec 23, 2005
Last updated in NPPESMay 28, 2019

Specialties and licenses

TaxonomyCodeLicenseState
Internal Medicine, Hematology & Oncology Primary207RH0003X216926MA

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 4, 2026No match—
New York OMIG · Nov 4, 2026No match—
Ohio Medicaid · Nov 4, 2026No match—
Pennsylvania Medicheck · Nov 4, 2026No match—
Washington HCA · Nov 4, 2026No match—

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

Medicare

Enrollment (PECOS)Enrolled Practitioner - Medical Oncology (MA)
Accepts assignmentYes (participating)

Medicare services in 2024

Medicare patients89
Services billed263 across 8 procedure codes
Paid by Medicare$20,351

Part D prescriptions in 2024

Prescriptions (claims)73 · 97 30-day fills
Patients13
Total drug cost$163,814
Generic share93% of claims

Medicare sources and data years

Education and affiliations

Medical schoolColumbia University College of Physicians and Surgeons
Graduation year2000
Medicare specialtyMedical Oncology
Secondary specialtiesHematology, Internal Medicine

Medical group

Hospital affiliation

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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