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Karen L. Ortiz Cruz, M.D.

NPI 1912168535ActiveIndividual· Internal Medicine, Hematology & Oncology· Chandler, AZ

Internal Medicine, Hematology & Oncology (M.D.) with Ironwood Physicians PC, practicing in Chandler, Arizona. Their prescriptions cost Medicare Part D more than their services did: $5,630,657 for 2,917 claims, against $2,482,562 paid for services in 2024. Stemline Therapeutics Inc. was the largest of 50 companies reporting payments in 2025, $9,189 in all, mostly consulting fees. Lists Banner Desert Medical Center and 3 other hospitals as hospital affiliations.

Overview

NPI1912168535
StatusActive
Entity typeIndividual
CredentialM.D.
Sole proprietorNo
NPI issuedJun 17, 2008
Last updated in NPPESNov 17, 2022
Certified by providerNov 17, 2022

Specialties and licenses

TaxonomyCodeLicenseState
Internal Medicine, Hematology & Oncology Primary207RH0003X48768AZ

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 - Hematology/Oncology (AZ)
Accepts assignmentYes (participating)

Medicare services in 2024

Medicare patients834
Services billed248,146 across 124 procedure codes
Paid by Medicare$2,482,562

Part D prescriptions in 2024

Prescriptions (claims)2,917 · 5,344 30-day fills
Patients511
Total drug cost$5,630,657
Generic share81% of claims

Medicare sources and data years

Education and affiliations

Graduation year2008
Medicare specialtyHematology/Oncology
TelehealthOffers telehealth

Medical group

Hospital affiliations

Source: CMS Care Compare

Industry payments (Open Payments)

  • 2025$9,189 · 182 payments from 50 companies
  • 2024$6,723 · 200 payments from 43 companies

Top paying companies in 2025

What the 2025 payments were for

  • Consulting Fee$4,960 · 2 payments
  • Food and Beverage$4,030 · 178 payments
  • Education$198.99 · 2 payments

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

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