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Ewa Hanna Konca, MD

NPI 1134197528ActiveIndividual· Internal Medicine, Endocrinology, Diabetes & Metabolism· Pomona, CA

Internal Medicine, Endocrinology, Diabetes & Metabolism (MD) with Chaparral Medical Group Inc, practicing in Pomona, California. Their prescriptions cost Medicare Part D more than their services did: $2,736,507 for 4,345 claims, against $94,016 paid for services in 2024. Amgen Inc. was the largest of 30 companies reporting payments in 2025, $2,870 in all, mostly food and beverage. Lists Casa Colina Hospital and 2 other hospitals as hospital affiliations.

Overview

NPI1134197528
StatusActive
Entity typeIndividual
CredentialMD
Sole proprietorNo
NPI issuedMar 10, 2006
Last updated in NPPESOct 13, 2026
Certified by providerOct 13, 2026

Specialties and licenses

TaxonomyCodeLicenseState
Internal Medicine, Endocrinology, Diabetes & Metabolism Primary207RE0101XA66917CA
Internal Medicine207R00000XA66917CA

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 - Endocrinology (CA)
Accepts assignmentYes (participating)

Medicare services in 2024

Medicare patients404
Services billed1,134 across 28 procedure codes
Paid by Medicare$94,016

Part D prescriptions in 2024

Prescriptions (claims)4,345 · 7,121 30-day fills
Patients756
Total drug cost$2,736,507
Generic share40% of claims

Medicare sources and data years

Education and affiliations

Graduation year1993
Medicare specialtyEndocrinology
Secondary specialtiesInternal Medicine
TelehealthOffers telehealth

Medical group

Hospital affiliations

Source: CMS Care Compare

Industry payments (Open Payments)

  • 2025$2,870 · 115 payments from 30 companies
  • 2024$925.29 · 45 payments from 16 companies

Top paying companies in 2025

CompanyAmountPayments
Amgen Inc.$392.0418
Abbott Laboratories$266.5111
Novartis Pharmaceuticals Corporation$259.3112
Verity Pharmaceuticals Inc.$254.051
Novo Nordisk Inc$197.4010

What the 2025 payments were for

  • Food and Beverage$2,870 · 115 payments

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

Other endocrinologists in Pomona

All endocrinologists in California