Ali Imtiaz, - Medicare Internal Medicine in Naperville, IL

Ali Imtiaz, is a medicare enrolled "Internal Medicine - Nephrology" physician in Naperville, Illinois. His current practice location is 100 Spalding Dr Ste 202, Naperville, Illinois. You can reach out to his office (for appointments etc.) via phone at (630) 873-8889.

Ali Imtiaz is licensed to practice in Illinois (license number 036-161534) and he also participates in the medicare program. He does not accept medicare assignments directly but he may accept medicare through third-party (refer to Reassignment section below) and may also prescribe medicare part D drugs. His NPI Number is 1972036010.

Contact Information

Ali Imtiaz,
100 Spalding Dr Ste 202,
Naperville, IL 60540-6552
(630) 873-8889
(630) 456-7138

Map and Direction




Physician's Profile

Full NameAli Imtiaz
GenderMale
SpecialityInternal Medicine - Nephrology
Location100 Spalding Dr Ste 202, Naperville, Illinois
Accepts Medicare AssignmentsMedicare enrolled and may accept medicare through third-party reassignment. May prescribe medicare part D drugs.
  NPI Data:
  • NPI Number: 1972036010
  • Provider Enumeration Date: 04/05/2017
  • Last Update Date: 08/08/2023
  Medicare PECOS Information:
  • PECOS PAC ID: 5496024259
  • Enrollment ID: I20220912001743

Medical Identifiers

Medical identifiers for Ali Imtiaz such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1972036010NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207RN0300XInternal Medicine - Nephrology 036-161534 (Illinois)Primary

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. Ali Imtiaz 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. Ali Imtiaz 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
Ali Imtiaz,
Po Box 713260,
Chicago, IL 60677-1260

Ph: (630) 469-9200
Ali Imtiaz,
100 Spalding Dr Ste 202,
Naperville, IL 60540-6552

Ph: (630) 873-8889

Reviews and Comments


Internal Medicine Doctors in Naperville, IL

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Phone: 630-717-2600    

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.