Doctor profile · Federal record

Dr. Ali Imtiaz

Nephrology Physician (CMS: Nephrology) · Naperville, IL

  • NPI 1972036010
  • Accepts Medicare
  • 9 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
100 Spalding Dr Ste 202
Naperville, IL 605406552
(630) 873-8889
fax (630) 456-7138
Mailing address
Po Box 713260
Chicago, IL 606771260

Credentials & registration

NPPES · NUCC
NPI registered
April 2017 — 9 yrs on file
Profile last updated
August 8, 2023
Year of graduation
2017 — 9 yrs since
Specialty taxonomy
207RN0300X — NUCC code
State license (1)
Illinois #036-161534

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1972036010. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
1,484
Distinct HCPCS
10
Medicare allowed
$115,274
HCPCS Description Services Patients Avg allowed
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 456 147 $123
80069 Kidney function blood test panel 167 86 $9
36415 Insertion of needle into vein for collection of blood sample 158 78 $8
99215 Established patient office or other outpatient visit, 40-54 minutes 131 74 $186
82570 Creatinine level to test for kidney function or muscle injury 95 59 $5
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 85 78 $179
82043 Urine microalbumin (protein) level 78 55 $6
84156 Total protein level, urine 63 48 $4
83970 Parathormone (parathyroid hormone) level 42 40 $40
82306 Vitamin d-3 level 39 35 $29

In context: peer comparison

Among 3 peers in Naperville Nephrology Physician, average services per provider: 476. This provider delivers 3.1× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$268
Transactions
12
Manufacturers
6
Payer (manufacturer) Industry Txns Amount
Vifor Pharma, INC. 4 $111.27
Travere Therapeutics, INC. 3 $59.28
Amgen INC. 2 $34.93
Otsuka America Pharmaceutical, INC. 1 $26.62
Ardelyx, INC. 1 $18.39
Bayer Healthcare Pharmaceuticals INC. 1 $17.41

By nature of payment

Food and Beverage
$268

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
121
Patients
28
Total drug cost
$4,179
Drug Type Claims Patients Total cost
Amlodipine Besylate Generic 33 15 $371
Losartan Potassium Generic 23 13 $193
Sevelamer Carbonate Generic 14 0 $2,298
Torsemide Generic 14 0 $225
Hydralazine Hcl Generic 13 0 $267
Lisinopril Generic 13 0 $232
Bumetanide Generic 11 0 $594

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Ali Imtiaz's medical specialty?
Dr. Ali Imtiaz practices Nephrology Physician in Naperville, IL.
Where does Dr. Ali Imtiaz practice?
Dr. Ali Imtiaz practices at 100 Spalding Dr Ste 202, Naperville, IL 605406552. Office phone: 6308738889.
What is Dr. Ali Imtiaz's NPI?
Dr. Ali Imtiaz's National Provider Identifier (NPI) is 1972036010, issued by NPPES.
Does Dr. Ali Imtiaz accept Medicare assignment?
Yes. Dr. Ali Imtiaz accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Ali Imtiaz commonly perform?
Top Medicare-reported procedures in 2023: Subsequent hospital care with moderate levelof medical decision making (HCPCS 99233); Kidney function blood test panel (HCPCS 80069); Insertion of needle into vein for collection of blood sample (HCPCS 36415). Source: CMS Medicare Physician & Other Practitioners file.