MACIEJ S LESNIAK MD
NPI 1326103151
Neurological Surgery in Chicago, IL

Active since December 22, 2006PECOS EnrolledAccepts Medicare Assignment
94.1/100
CMS Quality Rating
675 N SAINT CLAIR ST, GALTER 20-250, CHICAGO, IL 60611(312) 695-8143 Get Directions Write a Review

NPPES record last updated: November 10, 2015. Verified against the NPPES registry weekly; last sync: August 16, 2026.

About Maciej S Lesniak Md NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

MACIEJ S LESNIAK MD (NPI 1326103151) is an individual neurological surgery provider in Chicago, Illinois, licensed in Illinois (036108469) and active in the NPI registry since December 2006. He is enrolled in Medicare PECOS, is affiliated with Northwestern Memorial Hospital, and is a graduate of Johns Hopkins University School Of Medicine (1996).

NPPES Registry Identity

NPI1326103151
Entity TypeIndividualMale
Primary Taxonomy207T00000X
Provider Legal NameMACIEJ S LESNIAKCredential: MD
Location Address675 N SAINT CLAIR ST, GALTER 20-250Chicago, IL 60611-5975
Mailing Address680 N Lake Shore Dr, Suite# 1000Chicago, IL 60611-4546 · (312) 695-9797 · Fax (312) 695-0050
Sole ProprietorNo
Medical School CMSJohns Hopkins University School Of MedicineGraduated 1996
Enumeration DateDecember 22, 2006
Last NPPES UpdateNovember 10, 2015
NPI 1326103151 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

Primary SpecialtyNeurological SurgeryAllopathic & Osteopathic Physicians
Taxonomy Code207T00000X
License Licensed in IL · 036108469
Definition
A neurological surgeon provides the operative and non-operative management (i.e., prevention, diagnosis, evaluation, treatment, critical care, and rehabilitation) of disorders of the central, peripheral, and autonomic nervous systems, including their supporting structures and vascular supply; the evaluation and treatment of pathological processes which modify function or activity of the nervous system; and the operative and non-operative management of pain. A neurological surgeon treats patients with disorders of the nervous system; disorders of the brain, meninges, skull, and their blood supply, including the extracranial carotid and vertebral arteries; disorders of the pituitary gland; disorders of the spinal cord, meninges, and vertebral column, including those which may require treatment by spinal fusion or instrumentation; and disorders of the cranial and spinal nerves throughout their distribution.
675 N SAINT CLAIR ST, Chicago, IL 60611

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

Enrolled in Medicare and accepts Medicare assignment

Maciej S Lesniak Md is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID1557267267
PECOS Enrollment IDI20031211000730
Eligible to Order & Refer Part B Labs & Imaging Durable Medical Equipment Home Health Agency Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Areas of Expertise CMS Part B claims

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more 99212
This is a routine check-up for patients who have previously seen the doctor. During this 10-19 minute visit, the doctor will review your health status, discuss any concerns, and manage ongoing treatments or medications. It's a chance to ensure your health is on track.
21 services21 patients

Hospital Affiliations CMS Care Compare

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Northwestern Memorial Hospital

Acute Care Hospitals · Chicago, IL
5/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number140281
Location251 E Huron StChicago, IL 60611 · Cook County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 60611 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$138.86 typical visit price
range $60.08 – $183.39
Typical copayment $34.71 (range $15.02 – $45.84)
Most-billed visit code 99204
Established Patient
$74.80 typical visit price
range $18.97 – $148.12
Typical copayment $18.70 (range $4.74 – $37.03)
Most-billed visit code 99213
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

94.1/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored through an Alternative Payment Model
Quality82.59
Promoting Interoperability100
Improvement Activities40

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

Nurse Practitioner (Acute Care)
675 N SAINT CLAIR ST
CHICAGO, IL 60611
Nurse Practitioner (Adult Health)
675 N SAINT CLAIR ST, 21-100
CHICAGO, IL 60611
Surgery (Vascular Surgery)
675 N SAINT CLAIR ST, NORTHWESTERN MEMORIAL HOSPIALT GALTER 19-100
CHICAGO, IL 60611
Internal Medicine (Gastroenterology)
675 N SAINT CLAIR ST, SUITE 17-250
CHICAGO, IL 60611
Internal Medicine (Gastroenterology)
675 N SAINT CLAIR ST, GASTROENTEROLOGY - SUITE 1400
CHICAGO, IL 60611
Psychologist (Clinical)
675 N SAINT CLAIR ST, SUITE 14-200
CHICAGO, IL 60611
Occupational Therapist
675 N SAINT CLAIR ST
CHICAGO, IL 60611
Internal Medicine (Hematology)
675 N SAINT CLAIR ST, GALTER 21-100
CHICAGO, IL 60611

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Maciej Lesniak's NPI number?

The NPI number for Maciej Lesniak is 1326103151. It was assigned to this individual provider in the NPPES registry on December 22, 2006.

Where is Maciej Lesniak located?

Maciej Lesniak practices at 675 N Saint Clair St Galter 20-250, Chicago, IL 60611. The listed phone number is (312) 695-8143.

What is Maciej Lesniak's specialty?

The primary specialty registered for this NPI is Neurological Surgery with taxonomy code 207T00000X.

Is Maciej Lesniak enrolled in Medicare?

Yes. Maciej Lesniak is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

Is Maciej Lesniak affiliated with any hospitals?

According to CMS data, Maciej Lesniak is affiliated with Northwestern Memorial Hospital.

When was this NPI record last updated?

The NPPES record for Maciej Lesniak was last updated on November 10, 2015. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.