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Tara Brooke Kelley Gregory, M.D.

NPI 1407973993ActiveIndividual· Internal Medicine, Hematology & Oncology· Denver, CO

Internal Medicine, Hematology & Oncology (M.D.) in Denver, Colorado, trained at University of Arizona College of Medicine (class of 2004). Their prescriptions cost Medicare Part D more than their services did: $4,220,054 for 1,487 claims, against $823,480 paid for services in 2024. Janssen Scientific Affairs, LLC was the largest of 18 companies reporting payments in 2025, $12,492 in all, mostly consulting fees.

Overview

NPI1407973993
StatusActive
Entity typeIndividual
CredentialM.D.
Sole proprietorNo
NPI issuedMar 22, 2007
Last updated in NPPESOct 21, 2019

Specialties and licenses

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 - Hematopoietic Cell Transplantation and Cellular Therapy (CO)
Accepts assignmentYes (participating)

Medicare services in 2024

Medicare patients250
Services billed32,871 across 87 procedure codes
Paid by Medicare$823,480

Part D prescriptions in 2024

Prescriptions (claims)1,487 · 1,955 30-day fills
Patients112
Total drug cost$4,220,054
Generic share79% of claims

Medicare sources and data years

Education and affiliations

Medical schoolUniversity of Arizona College of Medicine
Graduation year2004
Medicare specialtyHematology/Oncology
TelehealthOffers telehealth

Medical groups

Hospital affiliation

Source: CMS Care Compare

Industry payments (Open Payments)

  • 2025$12,492 · 44 payments from 18 companies
  • 2024$1,754 · 18 payments from 10 companies

Top paying companies in 2025

What the 2025 payments were for

  • Consulting Fee$11,321 · 4 payments
  • Food and Beverage$1,156 · 39 payments
  • Education$15.33 · 1 payment

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

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