Stephen P. Zacker, MD

NPI 1861421273ActiveIndividual· Anesthesiology· Oklahoma City, OK

Anesthesiology (MD) in Oklahoma City, Oklahoma, trained at University of Oklahoma College of Medicine (class of 1993). Medicare paid $51,935 for services to 408 patients in 2024. Henry Schein, Inc. reported $43.46 in payments in 2025, mostly food and beverage.

Overview

NPI	1861421273
Status	Active
Entity type	Individual
Credential	MD
Sole proprietor	Yes
NPI issued	Jun 30, 2006
Last updated in NPPES	Jul 21, 2022

Specialties and licenses

Taxonomy	Code	License	State
Anesthesiology Primary	207L00000X	20192	OK

About license numbers in NPPES

Exclusion screening

List	Result	Details
HHS-OIG LEIE · Oct 9, 2026	No match	Checked by NPI and by name + state
North Carolina Medicaid · Nov 10, 2026	No match	—
New York OMIG · Nov 10, 2026	No match	—
Ohio Medicaid · Nov 10, 2026	No match	—
Pennsylvania Medicheck · Nov 10, 2026	No match	—
Washington HCA · Nov 10, 2026	No match	—

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

Medicare

Enrollment (PECOS)	Enrolled Practitioner - Anesthesiology (OK)
Accepts assignment	Yes (participating)

Medicare services in 2024

Medicare patients	408
Services billed	504 across 60 procedure codes
Paid by Medicare	$51,935

Medicare sources and data years

Education and affiliations

Medical school	University of Oklahoma College of Medicine
Graduation year	1993
Medicare specialty	Anesthesiology
Secondary specialties	Interventional Pain Management