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Kathy Marie Clewell, M.D.

NPI 1326100835ActiveIndividual· Internal Medicine· Poway, CA

Internal Medicine (M.D.) in Poway, California, trained at Jefferson Medical College of Thomas Jefferson University (class of 1993). Their prescriptions cost Medicare Part D more than their services did: $571,292 for 4,465 claims, against $351,341 paid for services in 2024. Lilly USA, LLC was the largest of 18 companies reporting payments in 2025, $5,858 in all, mostly consulting fees.

Overview

NPI1326100835
StatusActive
Entity typeIndividual
CredentialM.D.
Sole proprietorYes
NPI issuedDec 14, 2006
Last updated in NPPESOct 18, 2018

Specialties and licenses

TaxonomyCodeLicenseState
Internal Medicine Primary207R00000XG81095CA
Internal Medicine207R00000XG018095CA
Internal Medicine207R00000XG08109CCA

About license numbers in NPPES

Exclusion screening

ListResultDetails
HHS-OIG LEIE · Oct 9, 2026No matchChecked by NPI and by name + state
North Carolina Medicaid · Nov 10, 2026No match—
New York OMIG · Nov 10, 2026No match—
Ohio Medicaid · Nov 10, 2026No match—
Pennsylvania Medicheck · Nov 10, 2026No match—
Washington HCA · Nov 10, 2026No match—

Official OIG search · How matching works ·Bulk check a roster

Medicare

Enrollment (PECOS)Enrolled Practitioner - Internal Medicine (CA)
Accepts assignmentYes (participating)

Medicare services in 2024

Medicare patients297
Services billed9,441 across 38 procedure codes
Paid by Medicare$351,341

Part D prescriptions in 2024

Prescriptions (claims)4,465 · 10,118 30-day fills
Patients275
Total drug cost$571,292
Generic share86% of claims

Medicare sources and data years

Education and affiliations

Medical schoolJefferson Medical College of Thomas Jefferson University
Graduation year1993
Medicare specialtyInternal Medicine

Hospital affiliations

Other facilities

Source: CMS Care Compare

Industry payments (Open Payments)

  • 2025$5,858 · 61 payments from 18 companies
  • 2024$1,194 · 62 payments from 15 companies

Top paying companies in 2025

CompanyAmountPayments
Lilly USA, LLC$4,76814
Glaxosmithkline, LLC.$247.706
Amgen Inc.$234.5412
Novo Nordisk Inc$75.973
Seqirus USA Inc$60.363

What the 2025 payments were for

  • Consulting Fee$4,050 · 2 payments
  • Food and Beverage$1,404 · 57 payments
  • Travel and Lodging$404.42 · 2 payments

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

Other Internal Medicine providers in Poway

All Internal Medicine providers in California →