MARIOLA U GRZESZCZYK APRN
NPI 1003425463
Nurse Practitioner in Rockford, IL

Active since July 30, 2020PECOS EnrolledAccepts Medicare Assignment
5875 E RIVERSIDE BLVD, ROCKFORD, IL 61114(815) 398-9491(815) 381-7498 Get Directions Write a Review

NPPES record last updated: February 28, 2025. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Record update history: Feb 28, 2025, Mar 9, 2022, May 5, 2021 and 1 more (4 updates tracked since 2020).

About Mariola U Grzeszczyk Aprn NPPES

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

MARIOLA U GRZESZCZYK APRN (NPI 1003425463) is an individual nurse practitioner in Rockford, Illinois, licensed in Illinois (209022930) and active in the NPI registry since July 2020. She is enrolled in Medicare PECOS, is affiliated with Katherine Shaw Bethea Hospital, and maintains 2 additional practice locations.

NPPES Registry Identity

NPI1003425463
Entity TypeIndividualFemale
Primary Taxonomy363L00000X
Provider Legal NameMARIOLA U GRZESZCZYKCredential: APRN
Location Address5875 E RIVERSIDE BLVDRockford, IL 61114-4937
Mailing Address40 75th StWillowbrook, IL 60527-2325 · (630) 581-5372
Fax(815) 381-7498
Sole ProprietorNo
Medical School CMSOtherGraduated 2019
Enumeration DateJuly 30, 2020
Last NPPES UpdateFebruary 28, 20254 updates tracked since enumeration
NPPES CertifiedFebruary 28, 2025
NPI 1003425463 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

Primary SpecialtyNurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363L00000X
License Licensed in IL · 209022930
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 ListedNurse Practitioner · FamilyTaxonomy 363LF0000X · License 2019055819 (IL), 209022930 (IL)
5875 E RIVERSIDE BLVD, Rockford, IL 61114

Other Names 1

Other Name (5)Mariola Solarz Np

Secondary Practice Locations 2

Location 15140 N California Ave Ste 575Chicago, IL 60625-7065 · Phone (773) 878-6200
Location 240 75th StWillowbrook, IL 60527-2325 · Phone (630) 581-5372

Accepted 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

Mariola U Grzeszczyk Aprn 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 ID8628416344
PECOS Enrollment IDI20240401001592
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 8

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.
37 services33 patients
Detection test by immunoassay with direct visual observation for influenza virus 87804
This is a test that identifies the influenza virus in your body. It works by using an immunoassay, a method that detects the presence of the virus through an immune response. The results are directly observable, making it a quick and efficient way to diagnose flu.
36 services18 patients
Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213
This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.
27 services25 patients
New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more 99204
This is a first-time office or outpatient visit lasting between 45-59 minutes. The healthcare provider evaluates your health, discusses your medical history, and may suggest further tests or treatments. It's an opportunity to ask questions and understand your health better.
24 services24 patients
Detection test by immunoassay with direct visual observation for severe acute respiratory syndrome coronavirus 2 (covid-19) 87811
This is a test to detect COVID-19, the virus causing severe respiratory illness. It uses a method called immunoassay, which identifies the virus by its unique proteins. The test is directly observed for accuracy. It helps determine if you're currently infected.
22 services22 patients
Detection test by immunoassay with direct visual observation for streptococcus, group a (strep) 87880
A detection test by immunoassay for Group A Strep is a quick procedure to identify a bacterial infection in your throat. It involves taking a throat swab and applying it to a test strip, which changes color if Strep bacteria are present.
21 services21 patients

Hospital Affiliations CMS Care Compare

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

Katherine Shaw Bethea Hospital

Acute Care Hospitals · Dixon, IL
3/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number140012
Location403 E 1st StDixon, IL 61021 · Lee County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 61114 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
$85.71 typical visit price
range $54.80 – $168.44
Typical copayment $21.42 (range $13.70 – $42.11)
Most-billed visit code 99203
Established Patient
$97.25 typical visit price
range $17.16 – $136.56
Typical copayment $24.31 (range $4.29 – $34.14)
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.

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.

Anesthesiology
5875 E RIVERSIDE BLVD
ROCKFORD, IL 61114
Anesthesiology
5875 E RIVERSIDE BLVD
ROCKFORD, IL 61114
Podiatrist (Foot & Ankle Surgery)
5875 E RIVERSIDE BLVD
ROCKFORD, IL 61114
Nurse Practitioner
5875 E RIVERSIDE BLVD
ROCKFORD, IL 61114
Physical Medicine & Rehabilitation
5875 E RIVERSIDE BLVD
ROCKFORD, IL 61114
Anesthesiology (Pain Medicine)
5875 E RIVERSIDE BLVD
ROCKFORD, IL 61114
Anesthesiology
5875 E RIVERSIDE BLVD
ROCKFORD, IL 61114
Registered Nurse (Registered Nurse First Assistant)
5875 E RIVERSIDE BLVD
ROCKFORD, IL 61114

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 Mariola Grzeszczyk's NPI number?

The NPI number for Mariola Grzeszczyk is 1003425463. It was assigned to this individual provider in the NPPES registry on July 30, 2020. The provider is also known as Mariola Solarz Np.

Where is Mariola Grzeszczyk located?

Mariola Grzeszczyk practices at 5875 E Riverside Blvd, Rockford, IL 61114. The listed phone number is (815) 398-9491.

What is Mariola Grzeszczyk's specialty?

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

Is Mariola Grzeszczyk enrolled in Medicare?

Yes. Mariola Grzeszczyk 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 Mariola Grzeszczyk accept?

Health plans from Quartz list Mariola Grzeszczyk 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.

Is Mariola Grzeszczyk affiliated with any hospitals?

According to CMS data, Mariola Grzeszczyk is affiliated with Katherine Shaw Bethea Hospital.

When was this NPI record last updated?

The NPPES record for Mariola Grzeszczyk was last updated on February 28, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 17 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.