Ioannis Karkatzounis, MD - Medicare Hospitalist in Oshkosh, WI

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Ioannis Karkatzounis, MD is a medicare enrolled "Hospitalist" physician in Oshkosh, Wisconsin. He graduated from medical school in 1999 and has 27 years of diverse experience with area of expertise as Hospitalist. He is a member of the group practice Osf Multi-specialty Group, 24 On Physicians Pc, Beloit Health System Inc, Genesis Health System and his current practice location is 855 N Westhaven Dr, Oshkosh, Wisconsin. You can reach out to his office (for appointments etc.) via phone at (920) 303-8700.

Ioannis Karkatzounis is licensed to practice in Illinois (license number 036-120385) 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 1639335235.

Contact Information

Ioannis Karkatzounis, MD
855 N Westhaven Dr,
Oshkosh, WI 54904-7668
(920) 303-8700
(920) 456-7601

Map and Direction




Physician's Profile

Full NameIoannis Karkatzounis
GenderMale
SpecialityHospitalist
Experience27 Years
Location855 N Westhaven Dr, Oshkosh, Wisconsin
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:
  • Ioannis Karkatzounis graduated from medical school in 1999
  NPI Data:
  • NPI Number: 1639335235
  • Provider Enumeration Date: 08/03/2008
  • Last Update Date: 09/26/2024
  Medicare PECOS Information:
  • PECOS PAC ID: 9032263835
  • Enrollment ID: I20090813000167

Medical Identifiers

Medical identifiers for Ioannis Karkatzounis such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1639335235NPI-NPPES
100004698MedicaidWI

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207R00000XInternal Medicine 2960 (Wisconsin)Secondary
207R00000XInternal Medicine 036120385 (Illinois)Secondary
208M00000XHospitalist 2960 (Wisconsin)Secondary
208M00000XHospitalist 036-120385 (Illinois)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Genesis Medical Center-davenportDavenport, IAHospital
Southern Illinois Hospital Services Dba Herrin HospitalHerrin, ILHospital
Osf Heart Of Mary Medical CenterUrbana, ILHospital
Memorial Hospital Of CarbondaleCarbondale, ILHospital
Beloit Health SystemBeloit, WIHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Osf Multi-specialty Group36788897891848
24 On Physicians Pc5698688141239
Beloit Health System Inc8224947858130
Genesis Health System6103829338203

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. Ioannis Karkatzounis allows following entities to bill medicare on his behalf.
Entity NameRockford Health Physicians
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1043242886
PECOS PAC ID: 2567374036
Enrollment ID: O20031103000584
Entity NameAdvocate Health And Hospitals Corporation
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1700824455
PECOS PAC ID: 7810800935
Enrollment ID: O20031106000064
Entity NameSarah Bush Lincoln Health Center
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1669564662
PECOS PAC ID: 5092614867
Enrollment ID: O20031231000478
Entity NameFreeport Memorial Hospital
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1447228788
PECOS PAC ID: 8426958232
Enrollment ID: O20040109000305
Entity Name24 On Physicians Pc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1346480431
PECOS PAC ID: 5698688141
Enrollment ID: O20090609000389
Entity NameCarle Health Care Incorporated
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1154653947
PECOS PAC ID: 3577515774
Enrollment ID: O20100513000829
Entity NameCogent Healthcare Of Illinois, Llc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1487897849
PECOS PAC ID: 6507981008
Enrollment ID: O20100920001157
Entity NameSound Physicians Of Illinois Llc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1043598865
PECOS PAC ID: 1557533734
Enrollment ID: O20111012000272
Entity NameOsf Multi-specialty Group
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1922445527
PECOS PAC ID: 3678889789
Enrollment ID: O20150904000279
Entity NameHospitalist Medicine Physicians Of Illinois - Rockford, Llc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1790263325
PECOS PAC ID: 7315297785
Enrollment ID: O20180905002458
Entity NameCarle West Physician Group Inc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1467074138
PECOS PAC ID: 8921420308
Enrollment ID: O20200613000147

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. Ioannis Karkatzounis 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
Ioannis Karkatzounis, MD
4 Stonebrook Ct,
Bloomington, IL 61704-4156

Ph: (312) 730-8637		Ioannis Karkatzounis, MD
855 N Westhaven Dr,
Oshkosh, WI 54904-7668

Ph: (920) 303-8700

Reviews and Comments


Hospitalist Doctors in Oshkosh, WI

Hashim Mumtaz, M.D.
Hospitalist
Medicare: Accepting Medicare Assignments
Practice Location: 500 S Oakwood Rd, Oshkosh, WI 54904
Phone: 920-223-2000    Fax: 920-223-1230
Misbah Arif, MD
Hospitalist
Medicare: May Accept Medicare Assignments
Practice Location: 855 N Westhaven Dr, Oshkosh, WI 54904
Phone: 920-303-8700    
Raul R Garcia, MD
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Practice Location: 500 S Oakwood Rd, Oshkosh, WI 54904
Phone: 920-223-2300    
Karl E Baum, MD
Hospitalist
Medicare: Accepting Medicare Assignments
Practice Location: 855 N Westhaven Dr, Oshkosh, WI 54904
Phone: 920-303-8700    
Dr. Kingston Okrah, MD
Hospitalist
Medicare: Accepting Medicare Assignments
Practice Location: 2700 W 9th Ave, Ste. 310, Oshkosh, WI 54904
Phone: 920-223-3550    
Abdulmajid Adam,
Hospitalist
Medicare: Accepting Medicare Assignments
Practice Location: 855 N Westhaven Dr, Oshkosh, WI 54904
Phone: 862-218-4482    
Ahmed U Otokiti, MD
Hospitalist
Medicare: Accepting Medicare Assignments
Practice Location: 855 N Westhaven Dr, Oshkosh, WI 54904
Phone: 920-303-8700    

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.