Ali Imtiaz
Nephrology Physician · Naperville, IL
Ali Imtiaz is a nephrology physician with a practice address in Naperville, Illinois, and NPI 1972036010, issued on Apr 5, 2017. Check the license (Illinois 036-161534, as entered in NPPES) on the Illinois Department of Financial and Professional Regulation; the Medicare figures below come from public CMS files.
- Name
- Ali Imtiaz
- Primary taxonomy
- Nephrology Physician 207RN0300X
- License number
- 036-161534 IL
Self-reported in NPPES; status is on the state search - Practice location
- 100 Spalding Dr Ste 202, Naperville, IL 60540
- Phone
- (630) 873-8889
- Enumerated
- Apr 5, 2017
- Record last updated
- Aug 8, 2023
- Fax
- (630) 456-7138
- Medicare enrollment
- Enrolled (PECOS I20220912001743); accepts Medicare assignment
- Medical or professional school
- West Virginia School Of Osteopathic Medicine, 2017
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest nephrology physician records → All 572 in Illinois → Look up another NPI →
Also registered at 100 Spalding Dr Ste 202
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Julie CaleyNurse Practitioner1629439815
- Shivani Shah, M.D.Nephrology Physician1982837779
Verify Ali Imtiaz in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersIllinois Department of Financial and Professional Regulation
Search for license 036-161534Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
74% fewer Medicare Part D claims than the average nephrology physician in 2024
380 Medicare Part D claims for 117 beneficiaries, against an average of 1,465 among the 10,986 providers of this specialty who prescribed in Part D. Brand-name drugs were 8% of claims.
Most prescribed
- Losartan Potassium56 claims
- Amlodipine Besylate46 claims
- Lisinopril40 claims
- Nifedipine Er32 claims
- Calcitriol26 claims
- Hydralazine Hcl26 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Industry payments in 2024: $267.90
12 payments; by number, the most common kind was food and beverage; the largest payer was Vifor Pharma, Inc. The 8,230 providers of this specialty with any payment received $3,091.37 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Dupage Medical Group LtdNaperville, IL
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Ali Imtiaz among 572 nephrology physician records in Illinois
Ali Imtiaz is one of 572 nephrology physician records with a practice address in Illinois. 87% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2017, is newer than 84% of them.
- NPI issued2017 · 84% of these records are older, 12% newer
- In a Medicare fileYes · 87% of these records are
- In the CMS Doctors and Clinicians fileYes · 76% of these records are
- Graduated2017 · median 2002 among the 433 with a school on file
- Record last updated2023 · 39% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RN0300X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Nephrology Physician providers in Illinois
There are 572 nephrology physician records in Illinois.
All 572 in Illinois → Every provider in Naperville → Nephrology Physician nationwide →
The 8 nephrology physician records with the nearest ZIP codes
- Hsien Ta Fang, MDNaperville, IL 605401760562474
- Kevin Pandya, M.D.Naperville, IL 605401972759298
- Nilam Patel, MDNaperville, IL 605401235697863
- David Schlieben, MDNaperville, IL 605401538166210
- Shivani Shah, M.D.Naperville, IL 605401982837779
- Atif Fakhruddin, MDOswego, IL 605431952349516
- John Asplin, MDBurr Ridge, IL 605271275695728
- Bryan Becker, MDBurr Ridge, IL 605271386611903
Common questions
What is Ali Imtiaz's NPI number?
Ali Imtiaz's National Provider Identifier (NPI) is 1972036010, issued on Apr 5, 2017. An NPI identifies a provider in billing; it is not a license.
Where is Ali Imtiaz located?
The NPPES record lists a practice address at 100 Spalding Dr Ste 202, Naperville, IL, 60540. Phone: (630) 873-8889. Providers update this record themselves, so call before visiting.
How can I verify Ali Imtiaz's license?
NPPES lists Illinois license number 036-161534, as entered by the provider. Search the Illinois Department of Financial and Professional Regulation at https://idfpr.illinois.gov/checklicense.html. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Ali Imtiaz prescribe under Medicare Part D?
In 2024, Ali Imtiaz had 380 Medicare Part D claims for 117 beneficiaries; the average among nephrology physician prescribers was 1,465. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.