Ronald Slonek, MD - Medicare Internal Medicine in Bloomingdale, IL

Ronald Slonek, MD is a medicare enrolled "Internal Medicine" physician in Bloomingdale, Illinois. He graduated from medical school in 1982 and has 42 years of diverse experience with area of expertise as Internal Medicine. He is a member of the group practice Dupage Medical Group Ltd and his current practice location is 220 Springfield Dr Ste 210, Bloomingdale, Illinois. You can reach out to his office (for appointments etc.) via phone at (630) 858-3200.

Ronald Slonek is licensed to practice in Illinois (license number 036067364) 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 1003884610.

Contact Information

Ronald Slonek, MD
220 Springfield Dr Ste 210,
Bloomingdale, IL 60108-2215
(630) 858-3200
Not Available

Map and Direction




Physician's Profile

Full NameRonald Slonek
GenderMale
SpecialityInternal Medicine
Experience42 Years
Location220 Springfield Dr Ste 210, Bloomingdale, 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:
  • Ronald Slonek graduated from medical school in 1982
  NPI Data:
  • NPI Number: 1003884610
  • Provider Enumeration Date: 03/09/2006
  • Last Update Date: 08/31/2023
  Medicare PECOS Information:
  • PECOS PAC ID: 1557258241
  • Enrollment ID: I20040227000856

Medical Identifiers

Medical identifiers for Ronald Slonek such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1003884610NPI-NPPES
036067364MedicaidIL

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207R00000XInternal Medicine 036067364 (Illinois)Primary

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Dupage Medical Group Ltd54966679411186

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. Ronald Slonek allows following entities to bill medicare on his behalf.
Entity NameDupage Medical Group Ltd
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1801833983
PECOS PAC ID: 5496667941
Enrollment ID: O20031110000535

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. Ronald Slonek 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
Ronald Slonek, MD
Po Box 713260,
Chicago, IL 60677-1260

Ph: (630) 469-9200
Ronald Slonek, MD
220 Springfield Dr Ste 210,
Bloomingdale, IL 60108-2215

Ph: (630) 858-3200

Reviews and Comments


Internal Medicine Doctors in Bloomingdale, IL

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Dr. Sanjay P Patel, M.D.
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Sonal Patel, DO
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Medicare: Accepting Medicare Assignments
Practice Location: 220 Springfield Dr Ste 210, Bloomingdale, IL 60108
Phone: 630-858-3200    

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.