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LORI LYNN MAREK APN-CNP
NPI 1124752092
Nurse Practitioner in Naperville, IL

Active since July 14, 2022PECOS EnrolledAccepts Medicare Assignment
91.35/100
CMS Quality Rating
1335 N MILL ST, NAPERVILLE, IL 60563(630) 646-8000 Get Directions Write a Review

NPPES record last updated: April 10, 2026. Verified against the NPPES registry weekly; last sync: August 09, 2026.

Record update history: Apr 10, 2026, Oct 27, 2022, Jul 14, 2022 (3 updates tracked since 2022).

About Lori Lynn Marek Apn-cnp NPPES

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

LORI LYNN MAREK APN-CNP (NPI 1124752092) is an individual nurse practitioner in Naperville, Illinois, licensed in Illinois (209025985) and active in the NPI registry since July 2022. She is enrolled in Medicare PECOS and is a graduate of Other (2022).

NPPES Registry Identity

NPI1124752092
Entity TypeIndividualFemale
Primary Taxonomy363L00000X
Provider Legal NameLORI LYNN MAREKCredential: APN-CNP
Location Address1335 N MILL STNaperville, IL 60563-2261
Mailing Address456 Butterfly RdBolingbrook, IL 60490-4527 · (630) 301-9901
Phone(630) 646-8000
Sole ProprietorNo
Medical School CMSOtherGraduated 2022
Enumeration DateJuly 14, 2022
Last NPPES UpdateApril 10, 20263 updates tracked since enumeration
NPPES CertifiedApril 10, 2026
✔ NPI 1124752092 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 3

★ Primary SpecialtyNurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363L00000X
License✔ Licensed in IL · 209025985
Definition
(1) A registered nurse provider with a graduate degree in nursing prepared for advanced practice involving independent and interdependent decision making and direct accountability for clinical judgment across the health care continuum or in a certified specialty. (2) A registered nurse who has completed additional training beyond basic nursing education and who provides primary health care services in accordance with state nurse practice laws or statutes. Tasks performed by nurse practitioners vary with practice requirements mandated by geographic, political, economic, and social factors. Nurse practitioner specialists include, but are not limited to, family nurse practitioners, gerontological nurse practitioners, pediatric nurse practitioners, obstetric-gynecologic nurse practitioners, and school nurse practitioners.
Also ListedRegistered NurseTaxonomy 163W00000X · License 041-282572 (IL)
Also ListedNurse Practitioner · Psychiatric/Mental HealthTaxonomy 363LP0808X · License 209.025985 (IL)
1335 N MILL ST, Naperville, IL 60563
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Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Providence Health Plan.Insurance ›

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

Lori Lynn Marek Apn-cnp 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 ID5991173239
PECOS Enrollment IDI20221117002912
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 2

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 moderate level of decision making, if using time, 30 minutes or more 99214
This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.
86 services20 patients
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 99232
Follow-up hospital inpatient care involves daily check-ups while you're admitted in the hospital. Typically, a healthcare provider spends about 25 minutes each day reviewing your condition, adjusting treatment if needed, and answering any questions you might have.
40 services24 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 60563 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
$93.02 typical visit price
range $59.81 – $181.38
Typical copayment $23.25 (range $14.95 – $45.34)
Most-billed visit code 99203
Established Patient
$105.07 typical visit price
range $19.15 – $147.12
Typical copayment $26.26 (range $4.78 – $36.78)
Most-billed visit code 99214
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.

91.35/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored through an Alternative Payment Model
Quality82.71
Promoting Interoperability100
Improvement Activities40

Other Providers at the Same Location NPPES 19

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

MS. BETH MARIE MENGES LCPC, CADC
Counselor (Professional)
1335 N MILL ST
NAPERVILLE, IL 60563
Dupage County (630) 646-5107
JENNIFER DOWNS SANDACK LCPC
Counselor (Professional)
1335 N MILL ST
NAPERVILLE, IL 60563
Dupage County (630) 646-8000
EDWARD HEALTH VENTURES
Psychiatry & Neurology (Child & Adolescent Psychiatry)
1335 N MILL ST, STE 100
NAPERVILLE, IL 60563
Dupage County (630) 646-8000
MELISSA SAUTTER MS, APN, PMHNP-BC
Nurse Practitioner (Psychiatric/Mental Health)
1335 N MILL ST
NAPERVILLE, IL 60563
Dupage County (630) 646-5100
ANNABELLA CALABRESE KELLY
Nurse Practitioner (Psychiatric/Mental Health)
1335 N MILL ST
NAPERVILLE, IL 60563
Dupage County (847) 432-5464
SAMANTHA MACHNIAK-CEDANO
Counselor (Professional)
1335 N MILL ST
NAPERVILLE, IL 60563
Dupage County (630) 305-5027
MICHELLE PERRY
Counselor (Professional)
1335 N MILL ST
NAPERVILLE, IL 60563
Dupage County (630) 646-5441
MAHA ANWAR PA-C
Physician Assistant
1335 N MILL ST
NAPERVILLE, IL 60563
Dupage County (630) 646-8000

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 Lori Marek's NPI number?

The NPI number for Lori Marek is 1124752092. It was assigned to this individual provider in the NPPES registry on July 14, 2022.

Where is Lori Marek located?

Lori Marek practices at 1335 N Mill St, Naperville, IL 60563. The listed phone number is (630) 646-8000.

What is Lori Marek's specialty?

The primary specialty registered for this NPI is Nurse Practitioner with taxonomy code 363L00000X.

Is Lori Marek enrolled in Medicare?

Yes. Lori Marek 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.

What insurance does Lori Marek accept?

Health plans from Providence Health Plan list Lori Marek 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 Lori Marek was last updated on April 10, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 months 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.