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Anthony David Chismark, MD

NPI 1679583389ActiveIndividual· Colon & Rectal Surgery· Exeter, NH

Colon & Rectal Surgery (MD) in Exeter, New Hampshire, trained at Geisel School of Medicine at Dartmouth (class of 2000). 144 Medicare patients in 2024, $43,802 paid; nearly all of their 77 Part D prescriptions were generic (94%). Boston Scientific Corporation reported $131.20 in payments in 2024, mostly food and beverage.

Overview

NPI1679583389
StatusActive
Entity typeIndividual
CredentialMD
Sole proprietorNo
NPI issuedAug 8, 2006
Last updated in NPPESFeb 22, 2012

Specialties and licenses

TaxonomyCodeLicenseState
Colon & Rectal Surgery Primary208C00000X13146NH
Surgery208600000X13146NH

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 - Colorectal Surgery (Proctology) (NY)
Accepts assignmentYes (participating)

Medicare services in 2024

Medicare patients144
Services billed317 across 53 procedure codes
Paid by Medicare$43,802

Part D prescriptions in 2024

Prescriptions (claims)77 · 85 30-day fills
Patients40
Total drug cost$1,835
Generic share94% of claims

Medicare sources and data years

Education and affiliations

Medical schoolGeisel School of Medicine at Dartmouth
Graduation year2000
Medicare specialtyColorectal Surgery (Proctology)
Secondary specialtiesGeneral Surgery

Medical group

Hospital affiliations

Source: CMS Care Compare

Industry payments (Open Payments)

  • 2024$131.20 · 1 payment from 1 company

Top paying companies in 2024

CompanyAmountPayments
Boston Scientific Corporation$131.201

What the 2024 payments were for

  • Food and Beverage$131.20 · 1 payment

Receiving payments does not imply wrongdoing. What Open Payments covers ·original records