Jacob Walker, MD

NPI 1255794657ActiveIndividual· Internal Medicine, Geriatric Medicine· Aurora, CO

Internal Medicine, Geriatric Medicine (MD) in Aurora, Colorado, trained at Boston University School of Medicine (class of 2016). Their prescriptions cost Medicare Part D more than their services did: $1,498,254 for 3,384 claims, against $29,682 paid for services in 2024. Organon LLC reported $22.81 in payments in 2024, mostly food and beverage.

Overview

NPI	1255794657
Status	Active
Entity type	Individual
Credential	MD
Sole proprietor	No
NPI issued	Apr 1, 2016
Last updated in NPPES	Jul 27, 2022
Certified by provider	Jul 27, 2022

Specialties and licenses

Taxonomy	Code	License	State
Internal Medicine, Geriatric Medicine Primary	207RG0300X	DR.0068294	CO
Internal Medicine, Geriatric Medicine	207RG0300X	036148512	IL

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 - Geriatric Medicine (CO)
Accepts assignment	Yes (participating)

Medicare services in 2024

Medicare patients	202
Services billed	627 across 21 procedure codes
Paid by Medicare	$29,682

Part D prescriptions in 2024

Prescriptions (claims)	3,384 · 6,989 30-day fills
Patients	281
Total drug cost	$1,498,254
Generic share	75% of claims

Medicare sources and data years

Education and affiliations

Medical school	Boston University School of Medicine
Graduation year	2016
Medicare specialty	Geriatric Medicine
Secondary specialties	Internal Medicine
Telehealth	Offers telehealth