Kathleen A Mahan, MD - Medicare Internal Medicine in Lombard, IL

Kathleen A Mahan, MD is a medicare enrolled "Family Medicine" physician in Lombard, Illinois. She went to Loyola University Of Chicago, Stritch School Of Medicine and graduated in 2002 and has 23 years of diverse experience with area of expertise as Internal Medicine. She is a member of the group practice Du Page Medical Group Ltd and her current practice location is 1801 S Highland Ave Ste 130, Lombard, Illinois. You can reach out to her office (for appointments etc.) via phone at (630) 627-4722.

Kathleen A Mahan is licensed to practice in Michigan (license number 4301093916) and she also participates in the medicare program. She accepts medicare assignments (which means she accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance) and her NPI Number is 1639100464.

Contact Information

Kathleen A Mahan, MD
1801 S Highland Ave Ste 130,
Lombard, IL 60148-4932
(630) 627-4722
(630) 627-9134

Map and Direction




Physician's Profile

Full NameKathleen A Mahan
GenderFemale
SpecialityInternal Medicine
Experience23 Years
Location1801 S Highland Ave Ste 130, Lombard, Illinois
Accepts Medicare AssignmentsYes. She accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance.
  Medical Education and Training:
  • Kathleen A Mahan attended and graduated from Loyola University Of Chicago, Stritch School Of Medicine in 2002
  NPI Data:
  • NPI Number: 1639100464
  • Provider Enumeration Date: 07/06/2006
  • Last Update Date: 12/06/2016
  Medicare PECOS Information:
  • PECOS PAC ID: 5193723641
  • Enrollment ID: I20061117000355

Medical Identifiers

Medical identifiers for Kathleen A Mahan such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1639100464NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207Q00000XFamily Medicine 4301093916 (Michigan)Primary
207R00000XInternal Medicine 4301093916 (Michigan)Secondary
208000000XPediatrics 4301093916 (Michigan)Secondary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Advocate Home Health Care ServLombard, ILHome health agency

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Du Page Medical Group Ltd54966679411066

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. Kathleen A Mahan allows following entities to bill medicare on her behalf.
Entity NameDupage Medical Group Ltd
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1801833983
PECOS PAC ID: 5496667941
Enrollment ID: O20031110000535

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. Kathleen A Mahan 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
Kathleen A Mahan, MD
1801 S Highland Ave Ste 130,
Lombard, IL 60148-4932

Ph: (630) 627-4722
Kathleen A Mahan, MD
1801 S Highland Ave Ste 130,
Lombard, IL 60148-4932

Ph: (630) 627-4722

Reviews and Comments


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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).

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