Skip to content

Treise Nicole Tomlinson-Chesnut, M.D.

NPI 1710970884ActiveIndividual· Internal Medicine· Newbury Park, CA

Internal Medicine (M.D.) in Newbury Park, California, trained at University of California, Geffen School of Medicine (class of 1999). Their prescriptions cost Medicare Part D more than their services did: $549,122 for 4,721 claims, against $133,100 paid for services in 2024. Amgen Inc. was the largest of 18 companies reporting payments in 2025, $2,496 in all, mostly food and beverage.

Overview

NPI1710970884
StatusActive
Entity typeIndividual
CredentialM.D.
Sole proprietorNo
NPI issuedAug 24, 2005
Last updated in NPPESAug 3, 2022
Certified by providerAug 3, 2022

Specialties and licenses

TaxonomyCodeLicenseState
Internal Medicine Primary207R00000XA75087CA

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 (CA)
Accepts assignmentYes (participating)

Medicare services in 2024

Medicare patients262
Services billed2,047 across 41 procedure codes
Paid by Medicare$133,100

Part D prescriptions in 2024

Prescriptions (claims)4,721 · 11,575 30-day fills
Patients344
Total drug cost$549,122
Generic share85% of claims

Medicare sources and data years

Education and affiliations

Medical schoolUniversity of California, Geffen School of Medicine
Graduation year1999
Medicare specialtyInternal Medicine
TelehealthOffers telehealth

Medical group

Hospital affiliations

Other facilities

Source: CMS Care Compare

Industry payments (Open Payments)

  • 2025$2,496 · 120 payments from 18 companies
  • 2024$2,853 · 141 payments from 19 companies

Top paying companies in 2025

CompanyAmountPayments
Amgen Inc.$447.5723
Abbvie Inc.$404.9826
Lilly USA, LLC$260.2510
Novo Nordisk Inc$227.1011
Novartis Pharmaceuticals Corporation$160.286

What the 2025 payments were for

  • Food and Beverage$2,496 · 120 payments

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

Other internal medicine physicians in Newbury Park

All internal medicine physicians in California