Skip to content

Katherine Elizabeth Gross, M.D.

NPI 1336584184ActiveIndividual· Internal Medicine, Pulmonary Disease· Sun City West, AZ

Internal Medicine, Pulmonary Disease (M.D.) with Craig M Rundbaken DO PLLC and 1 other group, practicing in Sun City West, Arizona. Their prescriptions cost Medicare Part D more than their services did: $176,210 for 1,678 claims, against $6,832 paid for services in 2024. Astrazeneca Pharmaceuticals LP was the largest of 6 companies reporting payments in 2025, $264.39 in all, mostly food and beverage. Lists Banner del E. Webb Medical Center and 2 other hospitals as hospital affiliations.

Overview

NPI1336584184
StatusActive
Entity typeIndividual
CredentialM.D.
Sole proprietorNo
NPI issuedMay 7, 2013
Last updated in NPPESApr 3, 2026
Certified by providerApr 3, 2026

Specialties and licenses

TaxonomyCodeLicenseState
Internal Medicine, Pulmonary Disease Primary207RP1001X58013AZ

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 - Pulmonary Disease (AZ)
Accepts assignmentYes (participating)

Medicare services in 2024

Medicare patients42
Services billed130 across 10 procedure codes
Paid by Medicare$6,832

Part D prescriptions in 2024

Prescriptions (claims)1,678 · 3,569 30-day fills
Patients192
Total drug cost$176,210
Generic share86% of claims

Medicare sources and data years

Education and affiliations

Graduation year2013
Medicare specialtyPulmonary Disease
Secondary specialtiesInternal Medicine
TelehealthOffers telehealth

Medical groups

Hospital affiliations

Source: CMS Care Compare

Industry payments (Open Payments)

  • 2025$264.39 · 16 payments from 6 companies
  • 2024$190.66 · 16 payments from 3 companies

Top paying companies in 2025

What the 2025 payments were for

  • Food and Beverage$264.39 · 16 payments

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

Other Internal Medicine, Pulmonary Disease providers in Sun City West

All Internal Medicine, Pulmonary Disease providers in Arizona →