Ajay Maker, MD

NPI 1437237740ActiveIndividual· Surgery· Chicago, IL

Surgery (MD) in Chicago, Illinois, trained at Yale University School of Medicine (class of 2001). 54 Medicare patients in 2024, $53,128 paid; nearly all of their 62 Part D prescriptions were generic (90%). Histosonics, Inc. was the largest of 3 companies reporting payments in 2025, $1,143 in all, mostly travel and lodging.

Overview

NPI	1437237740
Status	Active
Entity type	Individual
Credential	MD
Sole proprietor	Yes
NPI issued	Nov 2, 2006
Last updated in NPPES	Mar 2, 2012

Specialties and licenses

Taxonomy	Code	License	State
Surgery Primary	208600000X	036126480	IL
Surgery	208600000X	211200	MA

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 - General Surgery (CA)
Accepts assignment	Yes (participating)

Medicare services in 2024

Medicare patients	54
Services billed	172 across 45 procedure codes
Paid by Medicare	$53,128

Part D prescriptions in 2024

Prescriptions (claims)	62 · 136 30-day fills
Patients	21
Total drug cost	$11,036
Generic share	90% of claims

Medicare sources and data years

Education and affiliations

Medical school	Yale University School of Medicine
Graduation year	2001
Medicare specialty	General Surgery
Secondary specialties	Surgical Oncology
Telehealth	Offers telehealth