Independent US Healthcare Provider Directory & Public Medical Database Patient Guides

Aidan Marie Ex-Willey , PA-C

Physician Assistant β€’ Chicago, IL

Active NPI 1114688918 Individual Practitioner Female Practitioner Accepts Medicare assignment
Practice location in NPPES

676 N Saint Clair St Ste 2030
Chicago, IL 606112830

Call 3129266831 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

676 N Saint Clair St Ste 2030

Chicago, IL 606112830

Telephone 3129266831
Fax 3129262200
Other Listings in Public Data

CMS Doctors and Clinicians lists 2 distinct group names: Howard Brown Health Center; Northwestern Medical Faculty Foundation. See the list

Source: CMS Doctors and Clinicians National Downloadable File, release date unavailable.

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

Medicare Profile & Education

Source: CMS Doctors and Clinicians National Downloadable File

Medical School

Northwestern University Feinberg Medical School

Graduation Year

2023

30-day fills

52 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

$26,326 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 – by Provider and Drug, 2024.

Open Payments general payments, program year 2025

All general payments: $2,431.77 across 107 records.

By nature of payment

  • Food and Beverage: $2,431.77 across 107 records.

Reporting-company totals (3 largest of 14)

  • Gilead Sciences, Inc.: $853.82 across 33 records.
  • ViiV Healthcare Company: $805.15 across 43 records.
  • Merck Sharp & Dohme LLC: $244.32 across 11 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

3 years (graduated 2023)

CMS Doctors and Clinicians data list 2023 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.

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; Medicare.gov, β€œDoes your provider accept Medicare as full payment?”

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.

Guide: How Medicare covers telehealth

Enrolled in Medicare (PECOS)

Aidan Ex-Willey 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 Aidan Ex-Willey 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 Chicago and Illinois

Billing and prescribing volume is not a quality rating.

Medicare Part D prescriptions

Fewer Part D prescriptions than 75% of clinicians listed under Physician Assistant in Chicago, IL (2024, 651 clinicians with data). Median for this group: 116. Middle half: 41 to 337.

Fewer Part D prescriptions than 80% of clinicians listed under Physician Assistant in Illinois (2024, 2,668 clinicians with data). Median for this group: 203. Middle half: 67 to 595.

Part D drug cost

A higher Part D drug cost than 70% of clinicians listed under Physician Assistant in Chicago, IL (2024, 651 clinicians with data). Median for this group: $1,977. Middle half: $320 to $34,048.

A higher Part D drug cost than 70% of clinicians listed under Physician Assistant in Illinois (2024, 2,668 clinicians with data). Median for this group: $3,018. Middle half: $535 to $48,132.

1,446 active clinicians are listed under Physician Assistant with a practice address in Chicago, IL (4,929 in Illinois).

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

Telehealth indicator in Chicago

17.4% of these 1,446 clinicians have the CMS telehealth indicator.

63.6% of these 1,446 clinicians are listed by CMS as accepting Medicare assignment.

Sources: CMS Medicare Part D Prescribers (2024), CMS Open Payments (2025), CMS Doctors and Clinicians, CMS NPPES NPI Registry. Specialty names follow the NUCC Health Care Provider Taxonomy.

Text: T-MedInfo Β· 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 Β· Program Year 2025
Disclosure Year:

Program year 2025 (payments made January 1 – December 31, 2025): 107 records totaling $2,431.77.

Manufacturer Payment Nature Product Type Amount ($)
Gilead Sciences, Inc.
Food and Beverage
In-kind items and services
Biktarvy General $120.89
Axsome Therapeutics, Inc.
Food and Beverage
In-kind items and services
Auvelity General $82.90
Theratechnologies Inc.
Food and Beverage
In-kind items and services
EGRIFTA General $40.35
Gilead Sciences, Inc.
Food and Beverage
In-kind items and services
β€” General $34.51
ViiV Healthcare Company
Food and Beverage
In-kind items and services
CABENUVA General $34.39
Theratechnologies Inc.
Food and Beverage
In-kind items and services
EGRIFTA General $32.83
ViiV Healthcare Company
Food and Beverage
In-kind items and services
APRETUDE General $32.82
ViiV Healthcare Company
Food and Beverage
In-kind items and services
APRETUDE General $32.60
Gilead Sciences, Inc.
Food and Beverage
In-kind items and services
Biktarvy General $32.10
Gilead Sciences, Inc.
Food and Beverage
In-kind items and services
β€” General $31.73
ViiV Healthcare Company
Food and Beverage
In-kind items and services
APRETUDE General $30.96
ViiV Healthcare Company
Food and Beverage
In-kind items and services
CABENUVA General $30.57
ViiV Healthcare Company
Food and Beverage
In-kind items and services
CABENUVA General $30.37
Gilead Sciences, Inc.
Food and Beverage
In-kind items and services
β€” General $30.22
ViiV Healthcare Company
Food and Beverage
In-kind items and services
APRETUDE General $29.97
Gilead Sciences, Inc.
Food and Beverage
In-kind items and services
β€” General $29.32
ViiV Healthcare Company
Food and Beverage
In-kind items and services
APRETUDE General $29.17
Theratechnologies Inc.
Food and Beverage
In-kind items and services
EGRIFTA General $28.93
Gilead Sciences, Inc.
Food and Beverage
In-kind items and services
β€” General $28.88
Theratechnologies Inc.
Food and Beverage
In-kind items and services
EGRIFTA General $28.67
ViiV Healthcare Company
Food and Beverage
In-kind items and services
CABENUVA General $28.63
Gilead Sciences, Inc.
Food and Beverage
In-kind items and services
β€” General $28.63
Gilead Sciences, Inc.
Food and Beverage
In-kind items and services
Biktarvy General $28.53
ViiV Healthcare Company
Food and Beverage
In-kind items and services
APRETUDE General $27.74
Novo Nordisk Inc
Food and Beverage
In-kind items and services
Wegovy General $27.25

(top 25 shown)

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

Medicare Part D Prescribing Profile & Medications

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

CMS Part D Β· Data Year 2024
Brand Name Generic Name Prescriptions Day Supply Total Cost Patients
Atorvastatin Calcium Atorvastatin Calcium 17 750 $84.86 β€”
Lisinopril Lisinopril 12 480 $70.77 β€”
Descovy Emtricitabine/Tenofov Alafenam 11 330 $26,170.46 β€”

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: 2026-03-26
Physician Assistant Primary Specialty

NUCC Taxonomy Code: 363A00000X

License # reported to NPPES IL 085.009886

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

Additional State Medicaid & Healthcare Payer Identifiers

Medicaid ID
085.009886 (IL)

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

I20230920002775

Enrollment State Jurisdiction

IL

PECOS Control ID

8123472446

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

Northwestern Medical Faculty Foundation

676 N Saint Clair, Chicago, IL 606112927

Northwestern Medical Faculty Foundation

675 N St Clair, Chicago, IL 606115975

Northwestern Medical Faculty Foundation

676 N Saint Clair St, Chicago, IL 606112927

Howard Brown Health Center

1525 E 55th St, Chicago, IL 606155582

Phone: 7733881600

Northwestern Medical Faculty Foundation

675 N Saint Clair St, Chicago, IL 606115975

Clinicians Sharing This Practice Address or Phone

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

5 listed
Sharon Feehan , APRN, CNP

Nurse Practitioner

NPI 1871670596

Advanced Practice Registered Nurse, Certified Nurse Practitioner

Trevor Hedberg , PA-C

Physician Assistant

NPI 1780217877

Physician Assistant (Certified)

Jordan Mottet

Physician Assistant

NPI 1699202630
Okechi Odoka , APRN, CNP

Nurse Practitioner

NPI 1174860498

Advanced Practice Registered Nurse, Certified Nurse Practitioner

NPI 1124055835

Doctor of Medicine (M.D.)

Career & Practice History Timeline

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

14 Historical Events
πŸ“
Updated Practice Location March 26, 2026

Registered at 676 N SAINT CLAIR ST STE 2030, CHICAGO, IL 606112830 (Tel: 3129266831)

πŸ“
Updated Business Mailing Address March 26, 2026

Registered at 676 N SAINT CLAIR ST STE 2030, CHICAGO, IL 606112830 (Tel: 3129266831)

πŸ‘€
Provider Name / Credentials Updated March 26, 2026

Recorded as AIDAN EX-WILLEY, PA-C

πŸŽ“
Medical Taxonomy / Specialty Registered (Primary Specialty) March 26, 2026

Physician Assistant (license number reported to NPPES: IL 085.009886)

πŸ“
Updated Practice Location September 07, 2023

Registered at 1525 E 55TH ST, CHICAGO, IL 606155512 (Tel: 7733881600)

πŸ“
Updated Business Mailing Address September 07, 2023

Registered at 1525 E 55TH ST, CHICAGO, IL 606155512 (Tel: 7733881600)

πŸ“
Updated Practice Location January 17, 2022

Registered at PA PROGRAM, 240 E HURON ST STE 1-200, CHICAGO, IL 606112909 (Tel: 3125031851)

πŸ“
Updated Business Mailing Address January 17, 2022

Registered at PA PROGRAM, 240 E HURON ST STE 1-200, CHICAGO, IL 606112909 (Tel: 3125031851)

βœ…
NPI Profile Active January 04, 2022

NPI status registered as active in NPPES database

πŸ“
Practice Location (Initial Record) January 04, 2022

Registered at 240 E HURON ST STE 1-200, CHICAGO, IL 606112909 (Tel: 3125031851)

πŸ“
Business Mailing Address (Initial Record) January 04, 2022

Registered at 240 E HURON ST STE 1-200, CHICAGO, IL 606112909 (Tel: 3125031851)

πŸ‘€
Provider Name / Credentials (Initial Record) January 04, 2022

Recorded as AIDAN EX-WILLEY

πŸŽ“
Medical Taxonomy / Specialty Registered (Primary Specialty) January 04, 2022

Student in an Organized Health Care Education/Training Program

🟒
Initial NPI Registration & Enumeration January 04, 2022

First registered as active Individual Practitioner in NPPES Database.

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NPI Administrative Meta

NPI Number: 1114688918
Entity Type:
Individual Provider Physician, Nurse Practitioner, or Solo Healthcare Professional (Type 1 NPI)
Enumeration Date: January 04, 2022
Last Update: March 26, 2026
Sole Proprietor: No

Other Physician Assistants in Chicago

All Physician Assistants in Chicago

Mailing Address

676 N Saint Clair St Ste 2030

Chicago, IL 606112830

Phone: 3129266831

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.