James Stim, MD - Medicare Nephrology in Rockford, IL

James Stim, MD is a medicare enrolled "Internal Medicine - Nephrology" physician in Rockford, Illinois. He went to University Of Illinois College Of Med (chi/peor/rock/chm-urb) and graduated in 1987 and has 37 years of diverse experience with area of expertise as Nephrology. He is a member of the group practice Rna Of Rockford, Llc and his current practice location is 612 Roxbury Rd, Rockford, Illinois. You can reach out to his office (for appointments etc.) via phone at (815) 227-8300.

James Stim is licensed to practice in Illinois (license number 036078891) 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 1104827427.

Contact Information

James Stim, MD
612 Roxbury Rd,
Rockford, IL 61107-5089
(815) 227-8300
(815) 227-8301

Map and Direction




Physician's Profile

Full NameJames Stim
GenderMale
SpecialityNephrology
Experience37 Years
Location612 Roxbury Rd, 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:
  • James Stim attended and graduated from University Of Illinois College Of Med (chi/peor/rock/chm-urb) in 1987
  NPI Data:
  • NPI Number: 1104827427
  • Provider Enumeration Date: 08/09/2005
  • Last Update Date: 04/22/2011
  Medicare PECOS Information:
  • PECOS PAC ID: 0547170623
  • Enrollment ID: I20050107000566

Medical Identifiers

Medical identifiers for James Stim such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1104827427NPI-NPPES
34174600MedicaidWI
1616108OtherILBCBS
036078891MedicaidIL
P00605029OtherILRAILROAD MEDICARE

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207RN0300XInternal Medicine - Nephrology 036078891 (Illinois)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Davita - Roxbury Dialysis CenterRockford, ILDialysis facility
Davita - Dixon Kidney CenterDixon, ILDialysis facility
Davita - Whiteside DialysisSterling, ILDialysis facility
Osf Saint Anthony Medical CenterRockford, ILHospital
Cgh Medical CenterSterling, ILHospital
Javon Bea HospitalRockford, ILHospital
Katherine Shaw Bethea HospitalDixon, ILHospital
Kishwaukee Community HospitalDekalb, ILHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Rna Of Rockford, Llc387066239816

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. James Stim allows following entities to bill medicare on his behalf.
Entity NameRna Of Rockford, Llc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1336326388
PECOS PAC ID: 3870662398
Enrollment ID: O20080522000639

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. James Stim 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
James Stim, MD
612 Roxbury Rd,
Rockford, IL 61107-5089

Ph: (815) 227-8300
James Stim, MD
612 Roxbury Rd,
Rockford, IL 61107-5089

Ph: (815) 227-8300

Reviews and Comments


Internal Medicine Doctors in Rockford, IL

Dr. Adekola Abioudun Ashaye, MD
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Phone: 815-490-1600    Fax: 815-490-1881
Prasad K. Kilaru, MD
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Rajyalaxmi Mullapudi, M.D.
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Geoffrey Tsaras, MD
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Phone: 779-696-1890    Fax: 779-696-2410
Stephanie Birmingham, APN
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Medicare: Accepting Medicare Assignments
Practice Location: 2400 N Rockton Ave, Rockford, IL 61103
Phone: 815-971-5000    

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.