MRS. ALEXANDRA NICOLE THUNHERST APRN-FPA
NPI 1457028177
Nurse Practitioner - Family in Bourbonnais, IL

Q: What is Alexandra Thunherst's NPI number?

The NPI number for Alexandra Thunherst is 1457028177. It was assigned to this individual provider in the NPPES registry on August 30, 2021. The provider is also known as Miss Alexandra Nicole Lyewski Aprn.

Q: What is Alexandra Thunherst's specialty?

The primary specialty registered for this NPI is Nurse Practitioner, specializing in Family, with taxonomy code 363LF0000X.

Active since August 30, 2021PECOS EnrolledAccepts Medicare Assignment

2070 IL-50 N, #500, BOURBONNAIS, IL 60914(779) 236-4094 Get Directions Write a Review

NPPES record last updated: August 18, 2026. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Aug 18, 2026, Aug 4, 2025, Mar 8, 2025 and 4 more (7 updates tracked since 2021).

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About Mrs. Alexandra Nicole Thunherst Aprn-fpa NPPES

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

MRS. ALEXANDRA NICOLE THUNHERST APRN-FPA (NPI 1457028177) is an individual family provider in Bourbonnais, Illinois, licensed in Illinois (277.003696) and active in the NPI registry since August 2021. She is enrolled in Medicare PECOS and is a graduate of Other (2021).

NPPES Registry Identity

NPI1457028177

Entity TypeIndividualFemale

Primary Taxonomy363LF0000X

Provider Legal NameMRS. ALEXANDRA NICOLE THUNHERSTCredential: APRN-FPA

Location Address2070 IL-50 N, #500Bourbonnais, IL 60914

Mailing Address2070 Il-50 N, #500Bourbonnais, IL 60914 · (779) 236-4094

Phone(779) 236-4094

Sole ProprietorNo

Medical School CMSOtherGraduated 2021

Enumeration DateAugust 30, 2021

Last NPPES UpdateAugust 18, 20267 updates tracked since enumeration

NPPES CertifiedAugust 18, 2026

✔ NPI 1457028177 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyNurse Practitioner · FamilyPhysician Assistants & Advanced Practice Nursing Providers

Taxonomy Code363LF0000X

License✔ Licensed in IL · 277.003696

2070 IL-50 N, Bourbonnais, IL 60914

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Other Names 1

Former Name (1)Miss Alexandra Nicole Lyewski Aprn

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

Mrs. Alexandra Nicole Thunherst Aprn-fpa 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 ID9436555950

PECOS Enrollment IDI20210909000940

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

Medicare enrollment records show Alexandra Thunherst reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Karas PC

29 mi

Pain Medicine

60 ORLAND SQUARE DR STE 101
Orland Park, IL 60462

Reassigned Medicare billing, Illinois enrollment
16 clinicians in this Medicare group

NPI 1598176661 (708) 914-5145

Midwest Express Care 2, Inc

39 mi

Urgent Care

40 75TH ST
Willowbrook, IL 60527

Reassigned Medicare billing, Illinois enrollment
410 clinicians in this Medicare group

NPI 1548692890 (630) 400-4060

MD @ Home Illinois, Sc

49 mi

Internal Medicine

2003 W FULTON ST STE 303
Chicago, IL 60612

Reassigned Medicare billing, Illinois enrollment
127 clinicians in this Medicare group

NPI 1568758415 (312) 243-2223

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 3

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 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.

25 services23 patients

Automated urinalysis test 81003

An automated urinalysis test is a routine examination that checks your urine for various substances. It can help identify potential health issues such as kidney problems or diabetes. The test uses a machine to analyze a small urine sample, providing quick and accurate results.

23 services23 patients

Insertion of needle into vein for collection of blood sample 36415

This procedure involves inserting a small needle into a vein, typically in your arm, to collect a blood sample. It's a quick and simple process to help diagnose or monitor health conditions. You may feel a small prick, but discomfort is minimal.

16 services16 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 60914 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.

Referred Medical Equipment & Supplies CMS DME claims 3

Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.

Nebulizer, with compressor E0570

DME-Other DME · category DE000N

1 supplier21 claims21 services$2.72 avg. paid by Medicare

Oxygen concentrator, single delivery port, capable of delivering 85 percent or greater oxygen concentration at the prescribed flow rate E1390

DME-Oxygen and Supplies · category DC002N

1 supplier12 claims12 services$58.54 avg. paid by Medicare

Portable gaseous oxygen system, rental; home compressor used to fill portable oxygen cylinders; includes portable containers, regulator, flowmeter, humidifier, cannula or mask, and tubing K0738

DME-Oxygen and Supplies · category DC000N

1 supplier12 claims12 services$28.52 avg. paid by Medicare

Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

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 Alexandra Thunherst's NPI number?

The NPI number for Alexandra Thunherst is 1457028177. It was assigned to this individual provider in the NPPES registry on August 30, 2021. The provider is also known as Miss Alexandra Nicole Lyewski Aprn.

Where is Alexandra Thunherst located?

Alexandra Thunherst practices at 2070 Il-50 N #500, Bourbonnais, IL 60914. The listed phone number is (779) 236-4094.

What is Alexandra Thunherst's specialty?

The primary specialty registered for this NPI is Nurse Practitioner, specializing in Family, with taxonomy code 363LF0000X.

Is Alexandra Thunherst enrolled in Medicare?

Yes. Alexandra Thunherst 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 Alexandra Thunherst's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Alexandra Thunherst reassigns Medicare benefits to 3 organizations: Karas PC (Orland Park, IL), Midwest Express Care 2, Inc (Willowbrook, IL) and MD @ Home Illinois, Sc (Chicago, IL). 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 Alexandra Thunherst's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for Alexandra Thunherst was last updated on August 18, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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.