Gregory Aram Daniels, M.D., PH.D.

NPI 1164480943ActiveIndividual· Internal Medicine, Hematology & Oncology· San Diego, CA

Internal Medicine, Hematology & Oncology (M.D., PH.D.) in San Diego, California, trained at University of Southern California Keck School of Medicine (class of 1999). Their prescriptions cost Medicare Part D more than their services did: $1,022,242 for 268 claims, against $95,958 paid for services in 2024. Regeneron Pharmaceuticals, Inc. reported $149.00 in payments in 2025, mostly food and beverage.

Overview

NPI	1164480943
Status	Active
Entity type	Individual
Credential	M.D., PH.D.
Sole proprietor	No
NPI issued	May 2, 2006
Last updated in NPPES	Nov 13, 2025
Certified by provider	Nov 13, 2025

Specialties and licenses

Taxonomy	Code	License	State
Internal Medicine, Hematology & Oncology Primary	207RH0003X	A92515	CA
Internal Medicine	207R00000X	A92515	CA

About license numbers in NPPES

Exclusion screening

List	Result	Details
HHS-OIG LEIE · Nov 10, 2026	No match	Checked by NPI and by name + state
North Carolina Medicaid · Nov 11, 2026	No match	—
New York OMIG · Nov 11, 2026	No match	—
Ohio Medicaid · Nov 11, 2026	No match	—
Pennsylvania Medicheck · Nov 11, 2026	No match	—
Washington HCA · Nov 11, 2026	No match	—

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

Medicare

Enrollment (PECOS)	Enrolled Practitioner - Hematology/Oncology (CA)
Accepts assignment	Yes (participating)

Medicare services in 2024

Medicare patients	242
Services billed	1,048 across 17 procedure codes
Paid by Medicare	$95,958

Part D prescriptions in 2024

Prescriptions (claims)	268 · 337 30-day fills
Patients	66
Total drug cost	$1,022,242
Generic share	68% of claims

Medicare sources and data years

Education and affiliations

Medical school	University of Southern California Keck School of Medicine
Graduation year	1999
Medicare specialty	Hematology/Oncology
Telehealth	Offers telehealth