Gregory Kozeny, MD - Medicare Nephrology in Winfield, IL

Gregory Kozeny, MD is a medicare enrolled "Internal Medicine - Nephrology" physician in Winfield, Illinois. He went to Loyola University Of Chicago, Stritch School Of Medicine and graduated in 1978 and has 46 years of diverse experience with area of expertise as Nephrology. He is a member of the group practice Nani-ihp Llc and his current practice location is 25 N Winfield Rd Ste 414, Winfield, Illinois. You can reach out to his office (for appointments etc.) via phone at (630) 690-1220.

Gregory Kozeny is licensed to practice in Illinois (license number 036059588) 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 1861499550.

Contact Information

Gregory Kozeny, MD
25 N Winfield Rd Ste 414,
Winfield, IL 60190-1379
(630) 690-1220
(630) 690-5323

Map and Direction




Physician's Profile

Full NameGregory Kozeny
GenderMale
SpecialityNephrology
Experience46 Years
Location25 N Winfield Rd Ste 414, Winfield, 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:
  • Gregory Kozeny attended and graduated from Loyola University Of Chicago, Stritch School Of Medicine in 1978
  NPI Data:
  • NPI Number: 1861499550
  • Provider Enumeration Date: 07/07/2005
  • Last Update Date: 10/30/2020
  Medicare PECOS Information:
  • PECOS PAC ID: 8921991407
  • Enrollment ID: I20050929000712

Medical Identifiers

Medical identifiers for Gregory Kozeny such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1861499550NPI-NPPES
1616108OtherILBCBS
036059588MedicaidIL
110059948OtherILRAILROAD MEDICARE PIN

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207RN0300XInternal Medicine - Nephrology 036059588 (Illinois)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Central Dupage HospitalWinfield, ILHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Nani-ihp Llc33757674866

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. Gregory Kozeny allows following entities to bill medicare on his behalf.
Entity NameNephrology Associates Of Northern Illinois Ltd
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1124069182
PECOS PAC ID: 2163328675
Enrollment ID: O20031208000313
Entity NameNani-ihp Llc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1417376385
PECOS PAC ID: 3375767486
Enrollment ID: O20140611001371

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. Gregory Kozeny 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
Gregory Kozeny, MD
120 W 22nd St Ste 200,
Oak Brook, IL 60523-1563

Ph: (630) 575-5000
Gregory Kozeny, MD
25 N Winfield Rd Ste 414,
Winfield, IL 60190-1379

Ph: (630) 690-1220

Reviews and Comments


Internal Medicine Doctors in Winfield, IL

Georgios Christopoulos, MD
Nephrology
Medicare: Accepting Medicare Assignments
Practice Location: 25 N Winfield Rd Ste 500, Winfield, IL 60190
Phone: 630-232-0280    Fax: 630-315-1469
Dr. Timothy J Mcgee, DO
Nephrology
Medicare: Accepting Medicare Assignments
Practice Location: 25 N Winfield Rd, Winfield, IL 60190
Phone: 630-690-4553    Fax: 630-690-2293
Rutuja Desai Patel, D.O.
Nephrology
Medicare: Accepting Medicare Assignments
Practice Location: 25 N Winfield Rd Ste 520, Winfield, IL 60190
Phone: 630-938-8266    Fax: 630-933-7329
Dane Eric Volden, M.D.
Nephrology
Medicare: Accepting Medicare Assignments
Practice Location: 25 N Winfield Rd Ste 400, Winfield, IL 60190
Phone: 630-456-7178    
Dr. Anjali Gera Gopal,
Nephrology
Medicare: Accepting Medicare Assignments
Practice Location: 25 N Winfield Rd Ste 432, Winfield, IL 60190
Phone: 630-933-4056    Fax: 630-933-5868
Dr. Cody Braun, MD
Nephrology
Medicare: Accepting Medicare Assignments
Practice Location: 25 N Winfield Rd Ste 400, Winfield, IL 60190
Phone: 630-456-7178    Fax: 630-456-7486
Margaret Eve Morrison, M.D
Nephrology
Medicare: Accepting Medicare Assignments
Practice Location: 25 N Winfield Rd Ste 300, Winfield, IL 60190
Phone: 630-717-2600    Fax: 630-718-2656

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.