Dr Eugene R Ahn, MD - Medicare Medical Oncology in Chicago, IL

Dr Eugene R Ahn, MD is a medicare enrolled "Internal Medicine - Medical Oncology" physician in Chicago, Illinois. He went to University Of Miami, Lm Miller School Of Medicine and graduated in 1997 and has 27 years of diverse experience with area of expertise as Medical Oncology. He is a member of the group practice Patient First Inc and his current practice location is 2361 Paysphere Cir, Chicago, Illinois. You can reach out to his office (for appointments etc.) via phone at (847) 746-4358.

Dr Eugene R Ahn is licensed to practice in Illinois (license number 036.136519) 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 1093911307.

Contact Information

Dr Eugene R Ahn, MD
2361 Paysphere Cir,
Chicago, IL 60674
(847) 746-4358
(847) 731-1017

Map and Direction




Physician's Profile

Full NameDr Eugene R Ahn
GenderMale
SpecialityMedical Oncology
Experience27 Years
Location2361 Paysphere Cir, Chicago, 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:
  • Dr Eugene R Ahn attended and graduated from University Of Miami, Lm Miller School Of Medicine in 1997
  NPI Data:
  • NPI Number: 1093911307
  • Provider Enumeration Date: 06/23/2007
  • Last Update Date: 10/26/2016
  Medicare PECOS Information:
  • PECOS PAC ID: 2163511890
  • Enrollment ID: I20141226000153

Medical Identifiers

Medical identifiers for Dr Eugene R Ahn such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1093911307NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207RX0202XInternal Medicine - Medical Oncology ME92099 (Florida)Secondary
207RX0202XInternal Medicine - Medical Oncology 036.136519 (Illinois)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Midwestern Region Med CenterZion, ILHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Patient First Inc327444659694

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. Dr Eugene R Ahn allows following entities to bill medicare on his behalf.
Entity NamePatient First Inc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1548258072
PECOS PAC ID: 3274446596
Enrollment ID: O20031111000788

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. Dr Eugene R Ahn 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
Dr Eugene R Ahn, MD
2520 Elisha Ave,
Zion, IL 60099

Ph: (847) 872-4561
Dr Eugene R Ahn, MD
2361 Paysphere Cir,
Chicago, IL 60674

Ph: (847) 746-4358

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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