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CELESTIA ARENDALL NIELSEN FNP
NPI 1093349391
Nurse Practitioner - Family in Libertyville, IL

Active since February 25, 2020PECOS EnrolledAccepts Medicare Assignment
755 S MILWAUKEE AVE STE 181, LIBERTYVILLE, IL 60048(847) 855-2430(847) 855-2490 Get Directions Write a Review

NPPES record last updated: May 19, 2026. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Record update history: May 19, 2026, Mar 7, 2024, Apr 29, 2022 and 3 more (6 updates tracked since 2020).

About Celestia Arendall Nielsen Fnp NPPES

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

CELESTIA ARENDALL NIELSEN FNP (NPI 1093349391) is an individual family provider in Libertyville, Illinois, licensed in Illinois (277005672) and active in the NPI registry since February 2020. She is enrolled in Medicare PECOS, is affiliated with Northwestern Medicine Mchenry, and is a graduate of Other (2019).

NPPES Registry Identity

NPI1093349391
Entity TypeIndividualFemale
Primary Taxonomy363LF0000X
Provider Legal NameCELESTIA ARENDALL NIELSENCredential: FNP
Location Address755 S MILWAUKEE AVE STE 181Libertyville, IL 60048-3267
Mailing Address755 S Milwaukee Ave Ste 181Libertyville, IL 60048-3267 · (847) 855-2430 · Fax (847) 855-2490
Phone(847) 855-2430
Fax(847) 855-2490
Sole ProprietorNo
Medical School CMSOtherGraduated 2019
Enumeration DateFebruary 25, 2020
Last NPPES UpdateMay 19, 20266 updates tracked since enumeration
NPPES CertifiedMay 19, 2026
✔ NPI 1093349391 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 · 277005672
755 S MILWAUKEE AVE STE 181, Libertyville, IL 60048
Open in Google Maps ↗

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter from Home State Health, Ambetter Health, Ambetter Health of Delaware.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

Celestia Arendall Nielsen Fnp 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 ID2961831771
PECOS Enrollment IDI20200330003581
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 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.

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.
428 services152 patients
Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 99223
Initial hospital inpatient care per day, typically 70 minutes, refers to the daily medical service provided to patients admitted to the hospital. This includes a comprehensive evaluation, diagnosis, treatment plan, and monitoring of your health condition. It ensures your well-being during your hospital stay.
172 services158 patients
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 99233
Follow-up hospital inpatient care per day typically involves a 35-minute check-up by your healthcare provider. This service includes monitoring your health progress, adjusting your treatment plan if needed, and answering any questions you may have about your condition or care.
48 services32 patients

Hospital Affiliations CMS Care Compare 2

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

Northwestern Medicine Mchenry

Acute Care Hospitals · Mchenry, IL
5/5 CMS rating
OwnershipVoluntary non-profit - Other
CMS Certification Number140116
Location4201 Medical Center DriveMchenry, IL 60050 · Mc Henry County
Emergency services Birthing friendly

Advocate Condell Medical Center

Acute Care Hospitals · Libertyville, IL
4/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number140202
Location801 S Milwaukee AveLibertyville, IL 60048 · Lake County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 60048 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.

Other Providers at the Same Location NPPES 3

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

JOEL ROBERT MENSING D.O.
Internal Medicine (Pulmonary Disease)
755 S MILWAUKEE AVE STE 181
LIBERTYVILLE, IL 60048
Lake County (847) 855-2460
DENNIS SAUL HOFFMAN M.D.
Internal Medicine (Pulmonary Disease)
755 S MILWAUKEE AVE STE 181
LIBERTYVILLE, IL 60048
Lake County (847) 855-2493
CHEST & SLEEP MEDICINE ASSOCIATES S.C.
Internal Medicine (Pulmonary Disease)
755 S MILWAUKEE AVE STE 181
LIBERTYVILLE, IL 60048
Lake County (847) 855-2430

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 Celestia Nielsen's NPI number?

The NPI number for Celestia Nielsen is 1093349391. It was assigned to this individual provider in the NPPES registry on February 25, 2020.

Where is Celestia Nielsen located?

Celestia Nielsen practices at 755 S Milwaukee Ave Ste 181, Libertyville, IL 60048. The listed phone number is (847) 855-2430.

What is Celestia Nielsen's specialty?

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

Is Celestia Nielsen enrolled in Medicare?

Yes. Celestia Nielsen 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 Celestia Nielsen accept?

Health plans from Ambetter Health, Ambetter Health of Delaware and Ambetter from Home State Health list Celestia Nielsen 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 Celestia Nielsen affiliated with any hospitals?

According to CMS data, Celestia Nielsen is affiliated with Northwestern Medicine Mchenry and Advocate Condell Medical Center.

When was this NPI record last updated?

The NPPES record for Celestia Nielsen was last updated on May 19, 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.