Mr John T Fiedler, MD - Medicare Internal Medicine in Elgin, IL

Mr John T Fiedler, MD is a medicare enrolled "Internal Medicine" physician in Elgin, Illinois. He went to Loyola University Of Chicago, Stritch School Of Medicine and graduated in 1993 and has 31 years of diverse experience with area of expertise as Internal Medicine. He is a member of the group practice Legacy Healthcare Services Inc, Dupage Medical Group Ltd and his current practice location is 745 Fletcher Dr, Suite 101, Elgin, Illinois. You can reach out to his office (for appointments etc.) via phone at (847) 742-3525.

Mr John T Fiedler is licensed to practice in Illinois (license number 036095731) 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 1487623716.

Contact Information

Mr John T Fiedler, MD
745 Fletcher Dr, Suite 101,
Elgin, IL 60123
(847) 742-3525
(847) 742-3585

Map and Direction




Physician's Profile

Full NameMr John T Fiedler
GenderMale
SpecialityInternal Medicine
Experience31 Years
Location745 Fletcher Dr, Elgin, 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:
  • Mr John T Fiedler attended and graduated from Loyola University Of Chicago, Stritch School Of Medicine in 1993
  NPI Data:
  • NPI Number: 1487623716
  • Provider Enumeration Date: 03/17/2006
  • Last Update Date: 08/07/2023
  Medicare PECOS Information:
  • PECOS PAC ID: 2860462066
  • Enrollment ID: I20040730000171

Medical Identifiers

Medical identifiers for Mr John T Fiedler such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1487623716NPI-NPPES
36095731MedicaidIL

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207R00000XInternal Medicine 036095731 (Illinois)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Advocate Home Health Care ServLombard, ILHome health agency
Advocate Sherman HospitalElgin, ILHospital
Presence Saint Joseph Hospital - ElginElgin, ILHospital
Northwestern Medicine Mchenry HospitalMchenry, ILHospital
Central Dupage HospitalWinfield, ILHospital
Alexian Brothers Medical Center 1Elk grove village, ILHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Legacy Healthcare Services Inc21633397222654
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. Mr John T Fiedler 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. Mr John T Fiedler 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
Mr John T Fiedler, MD
Po Box 713260,
Chicago, IL 60677-1260

Ph: (630) 469-9200
Mr John T Fiedler, MD
745 Fletcher Dr, Suite 101,
Elgin, IL 60123

Ph: (847) 742-3525

Reviews and Comments


Internal Medicine Doctors in Elgin, IL

Aamir A Memon, M.D.
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Phone: 847-531-5911    Fax: 847-531-5922
Dr. Vanessa Alvarez, M.D.
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Phone: 847-888-1914    Fax: 847-888-1925
Dr. Rajini Manjunath, MD
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Medicare: Accepting Medicare Assignments
Practice Location: 1710 N Randall Rd, Ste 300, Elgin, IL 60123
Phone: 847-931-0909    Fax: 847-931-0939
Dr. Wesley Daniel Roberts, MD
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Practice Location: 1425 N Randall Rd, Elgin, IL 60123
Phone: 224-783-8998    
Dr. Timothy Wang, MD
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Medicare: Not Enrolled in Medicare
Practice Location: 2000 Larkin Ave, #100, Elgin, IL 60123
Phone: 847-888-2320    Fax: 847-888-2591
Archana Goel, MD
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Medicare: Accepting Medicare Assignments
Practice Location: 1710 N Randall Rd Ste 200, Elgin, IL 60123
Phone: 847-214-5740    

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).

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