Independent US Healthcare Provider Directory & Public Medical Database Patient Guides

Isabella Elaine Liu , PA

Physician Assistant โ€ข Aurora, IL

Active NPI 1093438772 Individual Practitioner Female Practitioner Accepts Medicare assignment
Practice location in NPPES

1221 N Highland Ave
Aurora, IL 605061404

Call 6302648720 Location details and other listings
Medical Disclaimer

This profile restates public CMS/NPPES data; T-MedInfo gives no medical advice — consult a licensed professional, and call 911 for emergencies.

Practice Location & Contact Primary Location

Practice Address

1221 N Highland Ave

Aurora, IL 605061404

Telephone 6302648720
Fax 6302648423
Organization at the Same NPPES Address or Phone

Matched by practice address or phone in NPPES. A shared address or phone does not confirm that this clinician works there.

Other Listings in Public Data

NPPES lists 1 additional practice-address record in Downers Grove, IL. See the list

Source: CMS NPPES NPI Registry, practice location records; release date unavailable.

CMS Doctors and Clinicians lists 1 group name: Advocate Health And Hospitals Corporation. See the list

Source: CMS Doctors and Clinicians National Downloadable File, CMS release of October 2, 2026.

Listings do not confirm current availability, employment or a shared ownership network.

Medicare Profile & Education

Source: CMS Doctors and Clinicians National Downloadable File, CMS release of October 2, 2026

Graduation Year

2022

Medicare patients

131 people with Original Medicare in 2024

Different Original Medicare patients in 2024; counts below 11 are hidden; this does not show availability or quality.

Source: CMS, Medicare Physician & Other Practitioners โ€“ by Provider, 2024.

Medicare-allowed amount

About $23,985 in 2024

The total amount Medicare approved for these services in 2024. It includes what Medicare paid and what patients or their other insurance owed, such as the deductible and coinsurance.

What this does not show: Medicare-allowed amount

This is not the clinician's income. Part of it can go to a clinic or group practice, staff, equipment or drugs. It is not the price you will pay.

Source: CMS, Medicare Physician & Other Practitioners โ€“ by Provider and Service, 2024.

Paid by Medicare

About $18,710 in 2024

The part of the Medicare-allowed amount that Medicare itself paid in 2024, after patients' deductibles and coinsurance.

What this does not show: Paid by Medicare

This is not the clinician's income and not a measure of quality.

Source: CMS, Medicare Physician & Other Practitioners โ€“ by Provider and Service, 2024.

30-day fills

1,116 standardized 30-day fills in 2024

CMS converts prescriptions to 30-day supplies so they can be compared. A 90-day prescription counts as about three 30-day fills.

What this does not show: 30-day fills

It is not a count of patients and not a measure of quality.

Part D drug cost

$4,936 in 2024

The total cost of these prescriptions in 2024, paid by Medicare drug plans, patients and other payers together.

What this does not show: Part D drug cost

A higher cost often reflects the type of medicines a specialty uses. It is not your out-of-pocket cost and not a measure of quality.

Source: CMS, Medicare Part D Prescribers โ€“ by Provider and Drug, 2024.

Open Payments general payments, program year 2025

All general payments: $581.96 across 13 records.

By nature of payment

  • Food and Beverage: $581.96 across 13 records.

Reporting-company totals

  • Stryker Corporation: $581.96 across 13 records.

A reported payment does not necessarily mean the financial relationship is improper and is not a measure of care quality. Clinicians can review and dispute these records.

See the full table

Source: Calculated by T-MedInfo from CMS Open Payments general-payment records for program year 2025 (published June 30, 2026).

Guide: How to read an Open Payments record

Years since graduation

4 years (graduated 2022)

CMS Doctors and Clinicians data list 2022 as the year this clinician finished professional school.

What this does not show: Years since graduation

It is not the number of years in practice, and more years does not mean better care.

Source: CMS Doctors and Clinicians National Downloadable File, CMS release of October 2, 2026.

NPI first issued

2022

The year this clinician's National Provider Identifier (NPI) was issued. An NPI is a unique 10-digit ID that US health care providers use for billing.

What this does not show: NPI first issued

NPIs have been issued only since 2005, so this year is not necessarily when the clinician started practicing.

Source: CMS NPPES NPI Registry.

Accepts Medicare assignment

CMS data list this clinician as accepting Medicare assignment. This means agreeing to take the Medicare-approved amount as full payment for covered services.

Medicare assignment applies to Original Medicare. It does not tell you whether the clinician is in a Medicare Advantage plan's network, accepts other insurance, or is taking new patients.

Source: CMS Doctors and Clinicians, CMS release of October 2, 2026; Medicare.gov, โ€œDoes your provider accept Medicare as full payment?โ€

Guide: What Medicare assignment means

No telehealth indicator

CMS shows this indicator only when recent Medicare claims include telehealth services. The clinician may still offer telehealth; ask the office.

Source: CMS, Telehealth Indicator on Medicare Care Compare (fact sheet, January 2023); CMS Doctors and Clinicians, CMS release of October 2, 2026.

Guide: How Medicare covers telehealth

Enrolled in Medicare (PECOS)

Isabella Liu has a Medicare enrollment record in PECOS, the CMS system clinicians use to enroll so they can bill Medicare or order services for people with Medicare.

It does not show whether the clinician accepts assignment, is in your plan's network, or is taking new patients.

Source: CMS Medicare Fee-For-Service Public Provider Enrollment (PECOS); CMS Order and Referring file.

Guide: What Medicare enrollment (PECOS) means

Can order Medicare-covered services

CMS lists Isabella Liu as eligible to order or refer Medicare Part B clinical laboratory and imaging services, durable medical equipment (DME) and home health services for people with Medicare.

What this does not show: Can order Medicare-covered services

It does not mean the clinician offers these services directly.

Source: CMS Medicare Fee-For-Service Public Provider Enrollment (PECOS); CMS Order and Referring file.

Guide: What ordering and referring status means

Compared with the same specialty in Aurora and Illinois

Billing and prescribing volume is not a quality rating.

Medicare Part B services

More Medicare Part B services than 75% of clinicians listed under Physician Assistant in Aurora, IL (2024, 40 clinicians with data). Median for this group: 147. Middle half: 89 to 437.

More Medicare Part B services than 70% of clinicians listed under Physician Assistant in Illinois (2024, 2,437 clinicians with data). Median for this group: 210. Middle half: 76 to 541.

Medicare-allowed amount

A higher Medicare-allowed amount than 75% of clinicians listed under Physician Assistant in Aurora, IL (2024, 40 clinicians with data). Median for this group: $14,323. Middle half: $7,895 to $23,489.

A higher Medicare-allowed amount than 60% of clinicians listed under Physician Assistant in Illinois (2024, 2,437 clinicians with data). Median for this group: $16,535. Middle half: $6,631 to $35,666.

Paid by Medicare

A higher Medicare payment amount than 75% of clinicians listed under Physician Assistant in Aurora, IL (2024, 40 clinicians with data). Median for this group: $10,399. Middle half: $5,977 to $17,483.

A higher Medicare payment amount than 60% of clinicians listed under Physician Assistant in Illinois (2024, 2,437 clinicians with data). Median for this group: $12,317. Middle half: $4,888 to $26,298.

Medicare Part D prescriptions

More Part D prescriptions than 85% of clinicians listed under Physician Assistant in Aurora, IL (2024, 40 clinicians with data). Median for this group: 135. Middle half: 53 to 299.

More Part D prescriptions than 80% of clinicians listed under Physician Assistant in Illinois (2024, 2,681 clinicians with data). Median for this group: 200. Middle half: 66 to 586.

Part D drug cost

A higher Part D drug cost than 75% of clinicians listed under Physician Assistant in Aurora, IL (2024, 40 clinicians with data). Median for this group: $1,050. Middle half: $352 to $4,922.

Close to the middle for clinicians listed under Physician Assistant in Illinois (2024, 2,681 clinicians with data). Median for this group: $2,939. Middle half: $542 to $47,036.

69 active clinicians are listed under Physician Assistant with a practice address in Aurora, IL (5,108 in Illinois).

Addresses are self-reported to NPPES and may be out of date.

Telehealth indicator in Aurora

4.3% of these 69 clinicians have the CMS telehealth indicator.

62.3% of these 69 clinicians are listed by CMS as accepting Medicare assignment.

Sources: CMS Medicare Physician & Other Practitioners (2024), CMS Medicare Part D Prescribers (2024), CMS Open Payments (2025), CMS Doctors and Clinicians, CMS release of October 2, 2026, CMS NPPES NPI Registry. Specialty names follow the NUCC Health Care Provider Taxonomy.

Text: T-MedInfo ยท Report an error.

Pharma & Medical Device Financial Disclosures

Payments and other transfers of value that drug and medical device companies reported to CMS Open Payments

Open Payments ยท Program Year 2025
Disclosure Year:

Program year 2025 (payments made January 1 โ€“ December 31, 2025): 13 records totaling $581.96.

Manufacturer Payment Nature Product Type Amount ($)
Stryker Corporation
Food and Beverage
In-kind items and services
PANGEA General $166.33
Stryker Corporation
Food and Beverage
In-kind items and services
PANGEA General $129.19
Stryker Corporation
Food and Beverage
In-kind items and services
MAKO General $125.04
Stryker Corporation
Food and Beverage
In-kind items and services
MAKO General $25.93
Stryker Corporation
Food and Beverage
In-kind items and services
MAKO General $20.10
Stryker Corporation
Food and Beverage
In-kind items and services
PANGEA General $19.23
Stryker Corporation
Food and Beverage
In-kind items and services
MAKO General $19.19
Stryker Corporation
Food and Beverage
In-kind items and services
MAKO General $17.53
Stryker Corporation
Food and Beverage
In-kind items and services
MAKO General $16.73
Stryker Corporation
Food and Beverage
In-kind items and services
GMRS General $16.65
Stryker Corporation
Food and Beverage
In-kind items and services
MAKO General $15.03
Stryker Corporation
Food and Beverage
In-kind items and services
MAKO General $5.71
Stryker Corporation
Food and Beverage
In-kind items and services
MAKO General $5.30

Source: CMS Open Payments, program year 2025, released June 30, 2026.

Performed Procedures & Service Volume

Services billed to Original Medicare Part B in 2024.

CMS Part B ยท Data Year 2024
Reporting Year:

CPTยฎ is a registered trademark of the American Medical Association. CPT codes, descriptions and other data only are copyright 2022โ€“2023 American Medical Association. All rights reserved. Applicable FARS/HHSARS apply. Descriptions of CPT codes are the AMA's CPT Consumer Friendly Descriptors as published by CMS in the Medicare Physician & Other Practitioners โ€“ by Provider and Service data, 2023โ€“2024; they are plain-language summaries, not for clinical coding or documentation. HCPCS Level II codes and descriptions are from CMS. Fee schedules, relative value units, conversion factors and/or related components are not assigned by the AMA, are not part of CPT, and the AMA is not recommending their use. The AMA does not directly or indirectly practice medicine or dispense medical services. The AMA assumes no liability for data contained or not contained herein.

HCPCS Code Services Patients Submitted Charge Medicare Allowed
J3301 Injection, triamcinolone acetonide, not otherwise specified, 10 mg
312 20 $4.00 $0.99
27447 Replacement of knee joint, both sides of knee
60 55 $2920.53 $187.99
20610 Aspiration and/or injection of fluid from large joint
50 26 $329.60 $71.93
27130 Replacement of thigh bone and hip joint with prosthesis
33 32 $2074.72 $187.21
99213 Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more
33 26 $198.00 $79.45

Source: CMS Part B by Provider and Service, 2024; services under 11 beneficiaries omitted by CMS. Privacy limits

Submitted charges are billed amounts, not a price quote for your visit.

Medicare Part D Prescribing Profile & Medications

Medicare Part D prescriptions filled, including refills, in 2024.

CMS Part D ยท Data Year 2024
Prescription Year:
Brand Name Generic Name Prescriptions Day Supply Total Cost Patients
Hydrocodone-Acetaminophen Hydrocodone/Acetaminophen 341 2,522 $2,745.87 205
Meloxicam Meloxicam 248 4,104 $488.63 189
Cephalexin Cephalexin 215 1,591 $1,204.68 194
Gabapentin Gabapentin 151 2,162 $242.18 123
Amoxicillin Amoxicillin 83 106 $87.60 55
Tramadol Hcl Tramadol Hcl 60 513 $148.24 48
Clindamycin Hcl Clindamycin Hcl 14 105 $18.88 13

Source: CMS Part D by Provider and Drug, 2024; rows below 11 claims omitted by CMS; volume isn’t quality. Privacy limits

Specialties & License Numbers Reported to NPPES

Self-certified to NPPES: 2022-12-16
Physician Assistant Primary Specialty

NUCC Taxonomy Code: 363A00000X

License # reported to NPPES IL 085009166

A physician assistant is a person who has successfully completed an accredited education program for physician assistant, is licensed by the state and is practicing within the scope of that license. Physician assistants are formally trained to perform many of the routine, time-consuming tasks a physician can do. In some states, they may prescribe medications. They take medical histories, perform physical exams, order lab tests and x-rays, and give inoculations. Most states require that they work under the supervision of a physician.

Check License Status with the State Board License numbers are self-reported to NPPES; T-MedInfo does not confirm them against state records. Current status: Illinois Department of Financial and Professional Regulation.
Look Up on State Board Site

Medicare (PECOS) Enrollment & Ordering Eligibility

Source: CMS PECOS
Medicare FFS Enrollment Status Medicare Enrollment on File
CMS Provider Specialty

PRACTITIONER - PHYSICIAN ASSISTANT

Medicare Enrollment ID

I20221228000856

Enrollment State Jurisdiction

IL

PECOS Control ID

3971973405

Medicare Order & Referring Eligibility
Clinical Lab & Imaging (Part B) Eligible
Durable Medical Equipment (DME) Eligible
Home Health Agency (HHA) Eligible
Power Mobility Devices (PMD) Eligible

Sources: CMS Provider Enrollment and Order and Referring. Medicare enrollment is a billing status, not an accreditation or quality rating.

Medicare Group Practice Enrollments

Source: CMS Doctors and Clinicians National Downloadable File, CMS release of October 2, 2026

Advocate Health And Hospitals Corporation

1221 N Highland Ave, Aurora, IL 605061404

Phone: 6308596800

Advocate Health And Hospitals Corporation

1508 Aurora Ave, Naperville, IL 605406210

Phone: 6306924100

Secondary Practice Locations

3551 Highland Ave Ste 200b

Downers Grove, IL 605152100

Phone: 6302648720

Clinicians Sharing This Practice Address or Phone

Clinicians sharing this NPPES address, phone or fax; a shared contact does not mean they work together.

10 listed
Dr. Zeeshan Ali , MD

Psychiatry & Neurology - Neurology

NPI 1023422623

Doctor of Medicine (M.D.)

Dr. Socrates Brito , MD

Orthopaedic Surgery

NPI 1962639609

Doctor of Medicine (M.D.)

Alli Chemmachel

Physician Assistant

NPI 1629695333
Anna Domalik , APRN

Nurse Practitioner - Adult Health

NPI 1144086612

Advanced Practice Registered Nurse

Dr. Marc Hilgers , MD, PhD

Family Medicine - Sports Medicine

NPI 1548300395

Doctor of Medicine (M.D.), Doctor of Philosophy (Ph.D.)

Dr. Saad Khan , DO

Orthopaedic Surgery

NPI 1629318977

Doctor of Osteopathic Medicine (D.O.)

Career & Practice History Timeline

Changes recorded in monthly NPPES data files: addresses, names, credentials, specialties and NPI status

9 Historical Events
๐Ÿ“
Updated Practice Location December 16, 2022

Registered at 1221 N HIGHLAND AVE, AURORA, IL 605061404 (Tel: 6302648720)

๐Ÿ“
Updated Business Mailing Address December 16, 2022

Registered at 29373 NETWORK PL, CHICAGO, IL 606731293 (Tel: 8473905900)

๐Ÿข
Secondary Practice Location Registered December 16, 2022

Additional practice office at 3551 Highland Ave Ste 200B, Downers Grove, IL 605152100

โœ…
NPI Profile Active September 19, 2022

NPI status registered as active in NPPES database

๐Ÿ“
Practice Location (Initial Record) September 19, 2022

Registered at 3551 HIGHLAND AVE STE 200B, DOWNERS GROVE, IL 605152100 (Tel: 6302648720)

๐Ÿ“
Business Mailing Address (Initial Record) September 19, 2022

Registered at 6510 RED CEDAR WAY, CARMEL, IN 460334413 (Tel: 3176959270)

๐Ÿ‘ค
Provider Name / Credentials (Initial Record) September 19, 2022

Recorded as ISABELLA LIU, PA

๐ŸŽ“
Medical Taxonomy / Specialty Registered (Primary Specialty) September 19, 2022

Physician Assistant (license number reported to NPPES: IL 085009166)

๐ŸŸข
Initial NPI Registration & Enumeration September 19, 2022

First registered as active Individual Practitioner in NPPES Database.

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NPI Administrative Meta

NPI Number: 1093438772
Entity Type:
Individual Provider Physician, Nurse Practitioner, or Solo Healthcare Professional (Type 1 NPI)
Enumeration Date: September 19, 2022
Last Update: December 16, 2022
Sole Proprietor: No

Other Physician Assistants in Aurora

All Physician Assistants in Aurora

Mailing Address

29373 Network Pl

Chicago, IL 606731293

Phone: 8473905900

About This Data NPPES fields (address, phone, specialty, license) are self-reported and may be outdated; Medicare fields follow the CMS dataset named in each section. Correct directly at NPPES.