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Christopher W. Shanahan, M.D., M.P.H.

NPI 1730184854ActiveIndividual· Internal Medicine· Mattapan, MA

Internal Medicine (M.D., M.P.H.) in Mattapan, Massachusetts, trained at Rutgers New Jersey Medical School (class of 1988). Their prescriptions cost Medicare Part D more than their services did: $95,394 for 1,265 claims, against $241.67 paid for services in 2024.

Overview

NPI1730184854
StatusActive
Entity typeIndividual
CredentialM.D., M.P.H.
Sole proprietorNo
NPI issuedJun 15, 2005
Last updated in NPPESFeb 2, 2022
Certified by providerFeb 2, 2022

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

Medicare services in 2024

Medicare patients13
Services billed32 across 7 procedure codes
Paid by Medicare$241.67

Part D prescriptions in 2024

Prescriptions (claims)1,265 · 2,531 30-day fills
Patients88
Total drug cost$95,394
Generic share88% of claims

Medicare sources and data years

Education and affiliations

Medical schoolRutgers New Jersey Medical School
Graduation year1988
Medicare specialtyInternal Medicine
Secondary specialtiesAddiction Medicine
TelehealthOffers telehealth

Medical groups

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

Other internal medicine physicians in Mattapan

All internal medicine physicians in Massachusetts