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Karen Ann Frankwich, MD

NPI 1316100415ActiveIndividual· Internal Medicine, Endocrinology, Diabetes & Metabolism· Mission Viejo, CA

Internal Medicine, Endocrinology, Diabetes & Metabolism (MD) in Mission Viejo, California, trained at University of California, San Diego School of Medicine (class of 2008). Their prescriptions cost Medicare Part D more than their services did: $1,526,727 for 3,758 claims, against $182,969 paid for services in 2024. Abbvie Inc. was the largest of 26 companies reporting payments in 2025, $1,378 in all, mostly food and beverage.

Overview

NPI1316100415
StatusActive
Entity typeIndividual
CredentialMD
Sole proprietorNo
NPI issuedJul 8, 2008
Last updated in NPPESApr 25, 2022
Certified by providerApr 25, 2022

Specialties and licenses

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 4, 2026No match—
New York OMIG · Nov 4, 2026No match—
Ohio Medicaid · Nov 4, 2026No match—
Pennsylvania Medicheck · Nov 4, 2026No match—
Washington HCA · Nov 4, 2026No match—

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

Medicare

Enrollment (PECOS)Enrolled Practitioner - Endocrinology (CA)
Accepts assignmentYes (participating)

Medicare services in 2024

Medicare patients425
Services billed11,549 across 46 procedure codes
Paid by Medicare$182,969

Part D prescriptions in 2024

Prescriptions (claims)3,758 · 9,182 30-day fills
Patients492
Total drug cost$1,526,727
Generic share50% of claims

Medicare sources and data years

Education and affiliations

Medical schoolUniversity of California, San Diego School of Medicine
Graduation year2008
Medicare specialtyEndocrinology
TelehealthOffers telehealth

Medical group

Hospital affiliations

Source: CMS Care Compare

Industry payments (Open Payments)

  • 2025$1,378 · 59 payments from 26 companies
  • 2024$1,601 · 70 payments from 20 companies

Top paying companies in 2025

CompanyAmountPayments
Abbvie Inc.$118.665
Amgen Inc.$110.066
Abbott Laboratories$98.354
Novo Nordisk Inc$91.504
Lilly USA, LLC$91.215

What the 2025 payments were for

  • Food and Beverage$1,378 · 59 payments

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

Other Internal Medicine, Endocrinology, Diabetes & Metabolism providers in Mission Viejo

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