1. Home
  2. Directory
  3. Illinois
  4. Downers Grove
  5. Optometrist
  6. NPI Profile

MARGARET ANNA WILCZEK O.D.
NPI 1831542273
Optometrist in Downers Grove, IL

Active since July 21, 2016PECOS EnrolledAccepts Medicare Assignment
3450 LACEY RD, DOWNERS GROVE, IL 60515(630) 743-4500(630) 743-4537 Get Directions Write a Review

NPPES record last updated: June 19, 2018. Verified against the NPPES registry weekly; last sync: November 01, 2026.

About Margaret Anna Wilczek O.d. NPPES

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

MARGARET ANNA WILCZEK O.D. (NPI 1831542273) is an individual optometrist in Downers Grove, Illinois, licensed in Illinois (046.010985) and active in the NPI registry since July 2016. She is enrolled in Medicare PECOS and is a graduate of Illinois College Of Optometry At Chicago (2016).

NPPES Registry Identity

NPI1831542273
Entity TypeIndividualFemale
Primary Taxonomy152W00000X
Provider Legal NameMARGARET ANNA WILCZEKCredential: O.D.
Location Address3450 LACEY RDDowners Grove, IL 60515
Mailing Address3450 Lacey RdDowners Grove, IL 60515-5430 · (630) 743-4500 · Fax (630) 743-4537
Phone(630) 743-4500
Fax(630) 743-4537
Sole ProprietorYes
Medical School CMSIllinois College Of Optometry At ChicagoGraduated 2016
Enumeration DateJuly 21, 2016
Last NPPES UpdateJune 19, 2018
✔ NPI 1831542273 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyOptometristEye and Vision Services Providers
Taxonomy Code152W00000X
License✔ Licensed in IL · 046.010985
Definition
Doctors of optometry (ODs) are the primary health care professionals for the eye. Optometrists examine, diagnose, treat, and manage diseases, injuries, and disorders of the visual system, the eye, and associated structures as well as identify related systemic conditions affecting the eye. An optometrist has completed pre-professional undergraduate education in a college or university and four years of professional education at a college of optometry, leading to the doctor of optometry (O.D.) degree. Some optometrists complete an optional residency in a specific area of practice. Optometrists are eye health care professionals state-licensed to diagnose and treat diseases and disorders of the eye and visual system.
3450 LACEY RD, Downers Grove, IL 60515
Open in Google Maps ↗

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Anthem Blue Cross and Blue Shield, Blue Cross and Blue Shield of Louisiana, Blue Cross and Blue Shield of Montana and more.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Margaret Anna Wilczek O.d. 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 ID5597045765
PECOS Enrollment IDI20180423000101
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.

Medicare Billing Reassignments

2

Medicare enrollment records show Margaret Wilczek reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Midwestern University
Same address
Optometrist
3450 LACEY RD, SUITE 210
Downers Grove, IL 60515
  • Reassigned Medicare billing, Illinois enrollment
  • 50 clinicians in this Medicare group
NPI 1295126324 (630) 743-4500
Nsu-College Of Osteopathic Medical Center At Covenant Village
1,169 mi
Geriatric Medicine
9241 W BROWARD BLVD
Plantation, FL 33324
  • Reassigned Medicare billing, Florida enrollment
  • Medicare enrollment name: Nova Southeastern University Inc
  • 264 clinicians in this Medicare group
NPI 1093147670 (954) 262-4343

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

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 complete exam of visual system 92014
An established patient complete exam of the visual system involves a thorough check of your eyes and vision. It assesses eye health, checks for diseases, and measures your ability to see clearly at different distances. It's a routine, non-invasive procedure.
22 services22 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 60515 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
$137.43 typical visit price
range $59.81 – $181.38
Typical copayment $34.35 (range $14.95 – $45.34)
Most-billed visit code 99204
Established Patient
$74.38 typical visit price
range $19.15 – $147.12
Typical copayment $18.59 (range $4.78 – $36.78)
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.

Reported Quality Measures

Documentation of Current Medications in the Medical Record
Percentage of visits for patients aged 18 years and older for which the eligible professional or eligible clinician attests to documenting a list of current medications using all immediate resources available on the date of the encounter.
99%187 patients4/55-star benchmark: 100%
Health Information Exchange
The MIPS eligible clinician that transitions or refers their patient to another setting of care or health care clinician (1) uses CEHRT to create a summary of care record; and (2) electronically transmits such summary to a receiving health care clinician for…
2%373 patients1/55-star benchmark: 98%
Medication Reconciliation
The MIPS eligible clinician performs medication reconciliation for at least one transition of care in which the patient is transitioned into the care of the MIPS eligible clinician.
100%152 patients5/55-star benchmark: 100%
Pain Assessment and Follow-Up
Percentage of visits for patients aged 18 years and older with documentation of a pain assessment using a standardized tool(s) on each visit AND documentation of a follow-up plan when pain is present
96%187 patients4/55-star benchmark: 100%
Patient-Specific Education
The MIPS eligible clinician must use clinically relevant information from CEHRT to identify patient-specific educational resources and provide access to those materials to at least one unique patient seen by the MIPS eligible clinician.
99%223 patients4/55-star benchmark: 100%
Preventive Care and Screening: Body Mass Index (BMI) Screening and Follow-Up Plan
Percentage of patients aged 18 years and older with a BMI documented during the current encounter or during the previous twelve months AND with a BMI outside of normal parameters, a follow-up plan is documented during the encounter or during the previous…
93%28 patients4/55-star benchmark: 97%
Provide Patient Access
At least one patient seen by the MIPS eligible clinician during the performance period is provided timely access to view online, download, and transmit to a third party their health information subject to the MIPS eligible clinician's discretion to withhold…
89%220 patients4/55-star benchmark: 100%
Secure Messaging
For at least one unique patient seen by the MIPS eligible clinician during the performance period, a secure message was sent using the electronic messaging function of CEHRT to the patient (or the patient-authorized representative), or in response to a secure…
88%220 patients5/55-star benchmark: 79%
Providers report different measures because they deliver different services; reporting more or less information is not a reflection of quality. Star ratings appear only where CMS assigned them.

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.

DR. AARLAN VINCENT ACETO OD
Optometrist
3450 LACEY RD
DOWNERS GROVE, IL 60515
Dupage County (630) 743-4807
BEHNAM DARVISHAN DMD
Dentist (General Practice)
3450 LACEY RD
DOWNERS GROVE, IL 60515
Dupage County (630) 743-4500
RITA ANDREJA SINCLAIR PA-C
Physician Assistant
3450 LACEY RD
DOWNERS GROVE, IL 60515
Dupage County (630) 743-7500
DR. KIMBERLY A HUNTINGTON-ALFANO D.O.
Family Medicine
3450 LACEY RD
DOWNERS GROVE, IL 60515
Dupage County (630) 743-4500
MIDWESTERN UNIVERSITY
Speech-Language Pathologist
3450 LACEY RD
DOWNERS GROVE, IL 60515
Dupage County (630) 743-4500
MS. KIMBERLY S HOFFER M.A., CCC-SLP
Speech-Language Pathologist
3450 LACEY RD, ALUMNI HALL 206
DOWNERS GROVE, IL 60515
Dupage County (630) 743-4500
JESSICA N CONROY OD
Optometrist
3450 LACEY RD
DOWNERS GROVE, IL 60515
Dupage County (630) 743-4500
LAUREN MAXON FERGUSON CCC-SLP
Speech-Language Pathologist
3450 LACEY RD
DOWNERS GROVE, IL 60515
Dupage County (630) 743-4500

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 Margaret Wilczek's NPI number?

The NPI number for Margaret Wilczek is 1831542273. It was assigned to this individual provider in the NPPES registry on July 21, 2016.

Where is Margaret Wilczek located?

Margaret Wilczek practices at 3450 Lacey Rd, Downers Grove, IL 60515. The listed phone number is (630) 743-4500.

What is Margaret Wilczek's specialty?

The primary specialty registered for this NPI is Optometrist with taxonomy code 152W00000X.

Is Margaret Wilczek enrolled in Medicare?

Yes. Margaret Wilczek 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.

Which organizations bill Medicare for Margaret Wilczek's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Margaret Wilczek reassigns Medicare benefits to 2 organizations: Midwestern University (Downers Grove, IL) and Nsu-College Of Osteopathic Medical Center At Covenant Village (Plantation, FL). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Margaret Wilczek's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Margaret Wilczek accept?

Health plans from Anthem Blue Cross and Blue Shield, Blue Cross Blue Shield of Wyoming, Blue Cross and Blue Shield of Louisiana, Blue Cross and Blue Shield of Montana and Blue Cross and Blue Shield of Oklahoma and 9 other insurers list Margaret Wilczek as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for Margaret Wilczek was last updated on June 19, 2018. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 8 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.