Geoffrey Tsaras, MD - Medicare Infectious Disease in Rockford, IL

Geoffrey Tsaras, MD is a medicare enrolled "Internal Medicine - Infectious Disease" physician in Rockford, Illinois. He graduated from medical school in 1998 and has 26 years of diverse experience with area of expertise as Infectious Disease. He is a member of the group practice Swedishamerican Hospital and his current practice location is 1340 Charles St Ste 404, Rockford, Illinois. You can reach out to his office (for appointments etc.) via phone at (779) 696-1890.

Geoffrey Tsaras is licensed to practice in Illinois (license number 036126289) 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 1023278769.

Contact Information

Geoffrey Tsaras, MD
1340 Charles St Ste 404,
Rockford, IL 61104-2200
(779) 696-1890
(779) 696-2410

Map and Direction




Physician's Profile

Full NameGeoffrey Tsaras
GenderMale
SpecialityInfectious Disease
Experience26 Years
Location1340 Charles St Ste 404, Rockford, 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:
  • Geoffrey Tsaras graduated from medical school in 1998
  NPI Data:
  • NPI Number: 1023278769
  • Provider Enumeration Date: 06/16/2008
  • Last Update Date: 03/12/2021
  Medicare PECOS Information:
  • PECOS PAC ID: 6709951874
  • Enrollment ID: I20101021001146

Medical Identifiers

Medical identifiers for Geoffrey Tsaras such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1023278769NPI-NPPES
036126289MedicaidIL
ENROLLEDMedicaidMN
P00746355OtherMNMEDICARE, RAILROAD

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207RI0200XInternal Medicine - Infectious Disease 103894 (Minnesota)Secondary
207RI0200XInternal Medicine - Infectious Disease 036126289 (Illinois)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Swedish American HospitalRockford, ILHospital
Osf Saint Anthony Medical CenterRockford, ILHospital
Northwestern Medicine Mchenry HospitalMchenry, ILHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Swedishamerican Hospital5799698346269

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. Geoffrey Tsaras allows following entities to bill medicare on his behalf.
Entity NameSwedishamerican Hospital
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1962451732
PECOS PAC ID: 5799698346
Enrollment ID: O20031215000012

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. Geoffrey Tsaras 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
Geoffrey Tsaras, MD
Po Box 78866,
Milwaukee, WI 53278-8866

Ph: (779) 696-7150
Geoffrey Tsaras, MD
1340 Charles St Ste 404,
Rockford, IL 61104-2200

Ph: (779) 696-1890

Reviews and Comments


Internal Medicine Doctors in Rockford, IL

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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).

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.