NPI Lens

Charles E. Niesen, M.D.

NPI 1710915830ActiveIndividual· Specialist· Pasadena, CA

Specialist (M.D.) in Pasadena, California, licensed in CA, with an NPI issued in June 2006. Part D covered 162 prescriptions written in 2024, 99% of them generic. Corium, LLC was the largest of 13 companies reporting payments in 2025, $1,196 in all, mostly food and beverage.

Overview

NPI1710915830
StatusActive
Entity typeIndividual
CredentialM.D.
Sole proprietorYes
NPI issuedJun 29, 2006
Last updated in NPPESOct 31, 2016

Specialties and licenses

TaxonomyCodeLicenseState
Specialist Primary174400000XA54329CA

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)162 · 179 30-day fills
Total drug cost$18,179
Generic share99% of claims

Medicare sources and data years

Industry payments (Open Payments)

  • 2025$1,196 · 51 payments from 13 companies
  • 2024$1,236 · 61 payments from 11 companies

Top paying companies in 2025

CompanyAmountPayments
Corium, LLC$299.6115
Ucb, Inc.$263.589
Neurelis, Inc.$223.4011
Acadia Pharmaceuticals Inc$88.123
Sk Life Science, Inc.$85.573

What the 2025 payments were for

  • Food and Beverage$1,196 · 51 payments

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

Other Specialist providers in Pasadena

All 77 Specialist providers in Pasadena · All Specialist providers in California