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Warren David Backman, MBBS

NPI 1174910574ActiveIndividual· Internal Medicine, Geriatric Medicine· Boston, MA

Internal Medicine, Geriatric Medicine (MBBS) with Massachusetts General Physicians Organization Inc, practicing in Boston, Massachusetts. Their prescriptions cost Medicare Part D more than their services did: $239,931 for 2,533 claims, against $79,768 paid for services in 2024. Lists Brigham and Women Faulkner Hospital and 4 other hospitals as hospital affiliations.

Overview

NPI1174910574
StatusActive
Entity typeIndividual
CredentialMBBS
Sole proprietorNo
NPI issuedApr 23, 2015
Last updated in NPPESJun 26, 2026
Certified by providerJun 26, 2026

Specialties and licenses

TaxonomyCodeLicenseState
Internal Medicine, Geriatric Medicine Primary207RG0300X282027MA

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 - Geriatric Medicine (MA)
Accepts assignmentYes (participating)

Medicare services in 2024

Medicare patients362
Services billed1,021 across 38 procedure codes
Paid by Medicare$79,768

Part D prescriptions in 2024

Prescriptions (claims)2,533 · 5,884 30-day fills
Patients241
Total drug cost$239,931
Generic share89% of claims

Medicare sources and data years

Education and affiliations

Graduation year2013
Medicare specialtyGeriatric Medicine
Secondary specialtiesInternal Medicine
TelehealthOffers telehealth

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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