Thomas Joseph Ahearn, PA-C - Medicare Physician Assistant in Warrenville, IL

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Thomas Joseph Ahearn, PA-C is a medicare enrolled "Physician Assistant" in Warrenville, Illinois. He graduated from nursing school in 2015 and has 11 years of diverse experience with area of expertise as Physician Assistant. He is a member of the group practice Central Dupage Physician Group and his current practice location is 27650 Ferry Rd Ste 110, Warrenville, Illinois. You can reach out to his office (for appointments etc.) via phone at (630) 315-6543.

Thomas Joseph Ahearn is licensed to practice in Illinois (license number 085006089) and he also participates in the medicare program. He accepts medicare assignments (which means he accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance) and his NPI Number is 1962872200.

Contact Information

Thomas Joseph Ahearn, PA-C
27650 Ferry Rd Ste 110,
Warrenville, IL 60555-3846
(630) 315-6543
(630) 315-6537

Map and Direction




Provider's Profile

Full NameThomas Joseph Ahearn
GenderMale
SpecialityPhysician Assistant
Experience11 Years
Location27650 Ferry Rd Ste 110, Warrenville, Illinois
Accepts Medicare AssignmentsYes. He accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance.
  Medical Education and Training:
  • Thomas Joseph Ahearn graduated from nursing school in 2015
  NPI Data:
  • NPI Number: 1962872200
  • Provider Enumeration Date: 09/29/2015
  • Last Update Date: 12/18/2025
  Medicare PECOS Information:
  • PECOS PAC ID: 9830409317
  • Enrollment ID: I20251103001317

Medical Identifiers

Medical identifiers for Thomas Joseph Ahearn such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1962872200NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
363A00000XPhysician Assistant 085006089 (Illinois)Primary
363A00000XPhysician Assistant 1128403 (California)Secondary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Northwestern Medicine Central Dupage HospitalWinfield, ILHospital
Hoag Memorial Hospital PresbyterianNewport beach, CAHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Central Dupage Physician Group58906962311087

Medicare Reassignments

Some practitioners may not bill the customers directly but medicare billing happens through clinics / group practice / hospitals where the provider works. Medicare reassignment of benefits is a mechanism by which practitioners allow third parties to bill and receive payment for medicare services performed by them. Thomas Joseph Ahearn allows following entities to bill medicare on his behalf.
Entity NameNorthwestern Medical Faculty Foundation
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1346235314
PECOS PAC ID: 4587576814
Enrollment ID: O20031105000541
Entity NameCentral Dupage Physician Group
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1033149844
PECOS PAC ID: 5890696231
Enrollment ID: O20040303000601
Entity NameCepamerica Illinois LLP
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1912283110
PECOS PAC ID: 3274793633
Enrollment ID: O20120322000587

Medicare Part D Prescriber Enrollment

Any physician or other eligible professional who prescribes Part D drugs must either enroll in the Medicare program or opt out in order to prescribe drugs to their patients with Part D prescription drug benefit plans. Thomas Joseph Ahearn is enrolled with medicare and thus, if eligible, can prescribe medicare part D drugs to patients with medicare part D benefits.

Mailing Address and Practice Location

Mailing AddressPractice Location Address
Thomas Joseph Ahearn, PA-C
27650 Ferry Rd Ste 110,
Warrenville, IL 60555-3846

Ph: (630) 315-6543		Thomas Joseph Ahearn, PA-C
27650 Ferry Rd Ste 110,
Warrenville, IL 60555-3846

Ph: (630) 315-6543

Reviews and Comments


Physician Assistant Nurses in Warrenville, IL

Daniel J. O'donnell, PA
Physician Assistant
Medicare: Accepting Medicare Assignments
Practice Location: 27650 Ferry Rd, Warrenville, IL 60555
Phone: 630-225-2663    Fax: 630-225-2399
Marissa Marcheski, PA-C
Physician Assistant
Medicare: Accepting Medicare Assignments
Practice Location: 4405 Weaver Pkwy, Warrenville, IL 60555
Phone: 630-352-5450    Fax: 630-352-5499
Anna Navigato, PA-C
Physician Assistant
Medicare: Accepting Medicare Assignments
Practice Location: 27650 Ferry Rd Ste 100, Warrenville, IL 60555
Phone: 630-225-2663    Fax: 630-225-2399
Meghan Elizabeth Hanewall, PA-C
Physician Assistant
Medicare: Accepting Medicare Assignments
Practice Location: 4405 Weaver Pkwy, Warrenville, IL 60555
Phone: 630-352-5450    Fax: 630-933-4959
Lauren Marie Weston, PA-C
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Practice Location: 4405 Weaver Pkwy, Warrenville, IL 60555
Phone: 773-758-6516    
Christopher B. Ferron, P.A.
Physician Assistant
Medicare: Accepting Medicare Assignments
Practice Location: 4201 Winfield Rd, Warrenville, IL 60555
Phone: 630-646-3309    Fax: 630-548-6832
Ms. Kelly A Omsberg, PA-C
Physician Assistant
Medicare: Accepting Medicare Assignments
Practice Location: 27650 Ferry Rd, Suite 100, Warrenville, IL 60555
Phone: 630-225-2663    Fax: 630-225-2399

Medicare Program: Medicare is a federal government program which provides health insurance to people who are 65 or older. This program also covers certain younger people with disabilities (who receive Social Security Disability Insurance - SSDI), and people with End-Stage Renal Disease (permanent kidney failure requiring dialysis or a transplant, sometimes called ESRD.

Medicare Assignment: Assignment means that your doctor, provider, or supplier agrees (or is required by law) to accept the Medicare-approved amount as full payment for covered services. Most doctors, providers, and suppliers accept assignment, but you should always check to make sure. Participating providers have signed an agreement to accept assignment for all Medicare-covered services.

NPI Number: The National Provider Identifier (NPI) is a unique identification number for covered health care providers. The NPI must be used in lieu of legacy provider identifiers in the HIPAA standards transactions. Covered health care providers and all health plans and health care clearinghouses must use the NPIs in the administrative and financial transactions adopted under HIPAA (Health Insurance Portability and Accountability Act).

Our Data: Information on www.medicarelist.com is built using data sources published by Centers for Medicare & Medicaid Services (CMS) under Freedom of Information Act (FOIA). The information disclosed on the NPI Registry are FOIA-disclosable and are required to be disclosed under the FOIA and the eFOIA amendments to the FOIA. There is no way to 'opt out' or 'suppress' the NPPES record data for health care providers with active NPIs.