Thomas Joseph Ahearn, PA-C
Individual provider Active NPI Physician Assistant · Warrenville, IL
NPI 1962872200 · NPPES record last updated Dec 18, 2025
Key facts
- NPI
- 1962872200
- Entity type
- Individual (NPI type 1)
- Primary specialty
- Physician Assistant 363A00000X
- License
- 085006089 (IL)
- Practice address
- 27650 Ferry Rd Ste 110
Warrenville, IL 60555-3846 - Phone
- (630) 315-6543
- Fax
- (630) 315-6537
- NPI assigned
- Sep 29, 2015
- Sex
- Male
- Sole proprietor
- No
Organizations & group practices 12
Hospital & facility affiliations 3
Medicare Care Compare profile
- Specialty
- Physician Assistant
- Education
- Other, 2015
- Medicare assignment
- Accepts the Medicare-approved amount as payment in full
- Group practices
- Central Dupage Physician Group
Practice addresses (Care Compare)
27650 Ferry Rd
Warrenville, IL 60555-3845
Phone (630) 225-2663
Hospital & facility affiliations
- Northwestern Medicine Central Dupage Hospital
- Hoag Memorial Hospital Presbyterian
Merit-based Incentive Payment System (MIPS)
- Final score
- 100 of 100
- Quality
- 96.39
- Improvement activities
- 40
Medicare participation
- Medicare fee-for-service enrollment
- Enrolled (2 enrollments) in CA, IL
- Eligible to order & refer
- Part B services: Yes · DME: Yes · Home health: Yes · Power mobility devices: Yes · Hospice: No
Medicare enrollment records
| Enrollment ID | State | Provider type | PAC ID | Details |
|---|---|---|---|---|
| I20151112002663 | CA | Practitioner - Physician Assistant | 9830409317 | Reassigns benefits to 4 organizations |
| I20251103001317 | IL | Practitioner - Physician Assistant | 9830409317 | Reassigns benefits to 3 organizations |
National Provider Directory
- Medicare enrollment (NPD)
- Yes
- Credentials
- Physician Assistant
State licenses
| License | State | Type | Specialty |
|---|---|---|---|
| 52843 | CA | MD | Marriage & Family Therapist |
| 1128403 | CA | MD | Physician Assistant |
| 085006089 | IL | MD | Physician Assistant |
Practice roles
| Organization | Specialty | Status | New patients |
|---|---|---|---|
| Cep America-California | Current |
Accepting new patients | |
| Central Dupage Physician Group | Current |
Accepting new patients | |
| Central Dupage Physician Group | Current |
Accepting new patients | |
| Cep America-California | Current |
Accepting new patients |
Locations
9920 Talbert Ave
Fountain Vly, CA 92708
Phone (714) 236-4000
1601 Cummins Dr
Ste D
Modesto, CA 95358
Phone (510) 851-7423
1325 N Highland Ave
Aurora, IL 60506
Phone (630) 801-2756
Dept 5777
Carol Stream, IL 60122
27650 Ferry Rd
Warrenville, IL 60555
Phone (630) 225-2345
27650 Ferry Rd
Ste 110
Warrenville, IL 60555
Phone (630) 315-6543
27650 Ferry Rd
Ste 100
Warrenville, IL 60555
Phone (630) 225-2455
1800 N Main St
Wheaton, IL 60187
Phone (630) 469-0045
Interoperability endpoints
- tahearn419313@direct.memorialcare.org
Specialties & licenses
| Specialty (taxonomy) | Code | License | State | Primary |
|---|---|---|---|---|
| Physician Assistant | 363A00000X | 085006089 | IL | Yes |
| Physician Assistant | 363A00000X | 1128403 | CA |
Addresses
Primary practice location
27650 Ferry Rd Ste 110
Warrenville, IL 60555-3846
Mailing address
27650 Ferry Rd Ste 110
Warrenville, IL 60555-3846
Phone (630) 315-6543
Other providers in Warrenville, IL
- Abantu Home Services LLC
- Radmila Ilic Abram
- Sheila M Adamo
- Addus Healthcare Inc
- Rachel Adomshick
- Akwetey Mensah Akrong
- Adil Akthar
- Jenna E Alexander
- Karina Amelia Alexander
- Alliance Rehab, Inc.
All providers in Warrenville, IL · Physician Assistant in Illinois
Sources for this page
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Record last updated by the provider on Dec 18, 2025. Information in NPPES is self-reported and not verified by CMS.
- NUCC Health Care Provider Taxonomy: specialty names.
- Medicare Fee-For-Service Public Provider Enrollment (CMS/PECOS): enrollments, PAC IDs and benefit reassignments.
- Order and Referring (CMS).
- Medicare Care Compare provider data (CMS): clinician profile, group practices, facility affiliations, MIPS scores and star ratings.
- National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.