Dr Mark K Isoniemi, MD - Medicare Family Practice in Wheaton, IL

Dr Mark K Isoniemi, MD is a medicare enrolled "Family Medicine" physician in Wheaton, Illinois. He went to Ohio State University College Of Medicine and graduated in 1997 and has 27 years of diverse experience with area of expertise as Family Practice. He is a member of the group practice Dupage Medical Group Ltd and his current practice location is 150 E Willow Ave, Wheaton, Illinois. You can reach out to his office (for appointments etc.) via phone at (630) 510-6900.

Dr Mark K Isoniemi is licensed to practice in Illinois (license number 036101563) 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 1295779239.

Contact Information

Dr Mark K Isoniemi, MD
150 E Willow Ave,
Wheaton, IL 60187-5476
(630) 510-6900
(630) 871-6706

Map and Direction




Physician's Profile

Full NameDr Mark K Isoniemi
GenderMale
SpecialityFamily Practice
Experience27 Years
Location150 E Willow Ave, Wheaton, 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:
  • Dr Mark K Isoniemi attended and graduated from Ohio State University College Of Medicine in 1997
  NPI Data:
  • NPI Number: 1295779239
  • Provider Enumeration Date: 06/16/2006
  • Last Update Date: 08/08/2023
  Medicare PECOS Information:
  • PECOS PAC ID: 1951493097
  • Enrollment ID: I20070822000334

Medical Identifiers

Medical identifiers for Dr Mark K Isoniemi such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1295779239NPI-NPPES
P00612657OtherILRR MEDICARE
036101563MedicaidIL

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207Q00000XFamily Medicine 036101563 (Illinois)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Resilience Home Health CorporationAurora, ILHome health agency

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Dupage Medical Group Ltd54966679411209

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. Dr Mark K Isoniemi 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. Dr Mark K Isoniemi 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
Dr Mark K Isoniemi, MD
Po Box 713260,
Chicago, IL 60677-1260

Ph: (630) 469-9200
Dr Mark K Isoniemi, MD
150 E Willow Ave,
Wheaton, IL 60187-5476

Ph: (630) 510-6900

Reviews and Comments


Family Medicine Doctors in Wheaton, IL

Rashmi K. Chugh, M.D., M.P.H.
Family Medicine
Medicare: Medicare Enrolled
Practice Location: 111 N County Farm Rd, Wheaton, IL 60187
Phone: 630-682-7979    Fax: 630-462-9261
Uzair Misbahuddin Syed, M.D.
Family Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 7 Blanchard Cir Ste 102, Wheaton, IL 60189
Phone: 630-682-0500    Fax: 630-682-1078
Dr. Jane Elizabeth Larsen, M.D
Family Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 7 Blanchard Cir, Wheaton, IL 60189
Phone: 630-510-9009    Fax: 630-510-0152
Dr. Robert Paul Marseilles, M.D., J.D.
Family Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 7 Blanchard Cir, Suite 201, Wheaton, IL 60189
Phone: 630-653-2300    
Dr. Ashley Martin, M.D.
Family Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 150 E Willow Ave Ste 200, Wheaton, IL 60187
Phone: 630-665-6200    Fax: 630-665-6373
Dr. David Paul Hockett, M.D.
Family Medicine
Medicare: Medicare Enrolled
Practice Location: 7 Blanchard Cir, Suite 102, Wheaton, IL 60187
Phone: 630-682-0500    
Dr. Cathy L Munro, DO
Family Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 2001 S Wiesbrook Rd, Wheaton, IL 60189
Phone: 630-614-4000    Fax: 630-614-4048

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.