NPI Lens

Christopher Ashton Mast, D.D.S

NPI 1649489329ActiveIndividual· Dentist, General Practice· Helena, MT

Dentist, General Practice (D.D.S) in Helena, Montana, licensed in MT, with an NPI issued in May 2007. Part D covered 21 prescriptions written in 2024, 100% of them generic. Align Technology, Inc. reported $1,640 in payments in 2025, mostly travel and lodging.

Overview

NPI1649489329
StatusActive
Entity typeIndividual
CredentialD.D.S
Sole proprietorYes
NPI issuedMay 21, 2007
Last updated in NPPESJul 8, 2007

Specialties and licenses

TaxonomyCodeLicenseState
Dentist, General Practice Primary1223G0001X2114MT

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

Part D prescriptions in 2024

Prescriptions (claims)21 · 21 30-day fills
Patients12
Total drug cost$69.01
Generic share100% of claims

Medicare sources and data years

Industry payments (Open Payments)

  • 2025$1,640 · 5 payments from 1 company
  • 2024$417.29 · 8 payments from 2 companies

Top paying companies in 2025

CompanyAmountPayments
Align Technology, Inc.$1,6405

What the 2025 payments were for

  • Travel and Lodging$963.00 · 1 payment
  • Education$350.00 · 1 payment
  • Food and Beverage$318.37 · 2 payments
  • Gift$8.70 · 1 payment

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

Other general dentists in Helena

All 56 general dentists in Helena · All general dentists in Montana