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Stephen Joseph Massimi, M.D.

NPI 1831331388ActiveIndividual· Physical Medicine & Rehabilitation· Stamford, CT

Opted out of Medicare from January 2025 to January 2027. Physical Medicine & Rehabilitation (M.D.) in Stamford, Connecticut, licensed in CT and NY, with an NPI issued in March 2009. 195 Medicare patients in 2024, $50,291 paid; nearly all of their 229 Part D prescriptions were generic (99%).

Overview

NPI1831331388
StatusActive
Entity typeIndividual
CredentialM.D.
Sole proprietorNo
NPI issuedMar 30, 2009
Last updated in NPPESNov 1, 2024
Certified by providerNov 1, 2024

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)Not in the public enrollment file of Oct 1, 2026
Opt-outOpted out Jan 1, 2025 – Jan 1, 2027
Can order and referYes
Accepts assignmentYes (participating)

During an opt-out period the provider sees Medicare patients only under private contracts, and Medicare does not pay claims for their services.

Medicare services in 2024

Medicare patients195
Services billed662 across 21 procedure codes
Paid by Medicare$50,291

Part D prescriptions in 2024

Prescriptions (claims)229 · 244 30-day fills
Patients105
Total drug cost$1,999
Generic share99% of claims

Medicare sources and data years

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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