Doctor profile · Federal record

Dr. Mohammad Siddique, M. D.

Hospitalist Physician (CMS: Geriatric Medicine) · Geriatric Medicine (Internal Medicine) Physician · Downers Grove, IL

  • NPI 1144439456
  • Accepts Medicare
  • 24 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

Operates at 2 locations .

NPPES Updated May 11, 2026
Primary practice
2655 Warrenville RD Ste 500
Downers Grove, IL 605155646
(866) 949-0108
fax (901) 436-1384
Additional location
6101 S County Line RD
Burr Ridge, IL 605278132
(630) 686-9000
fax (844) 235-2578
Mailing address
1860 Paysphere Cir
Chicago, IL 606748132

Credentials & registration

NPPES · NUCC
NPI registered
May 2007 — 19 yrs on file
Profile last updated
June 17, 2025
Year of graduation
2002 — 24 yrs since
Specialty taxonomy
208M00000X — NUCC code
State license (1)
Illinois #036117676

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1144439456. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
2,672
Distinct HCPCS
10
Medicare allowed
$297,766
HCPCS Description Services Patients Avg allowed
99309 Subsequent nursing facility care with moderate level of medical decision making, per day, if using time, at least 30 minutes 696 155 $110
99349 Residence visit for established patient with moderate level of medical decision making, per day, if using time, at least 40 minutes 417 158 $132
99309 Subsequent nursing facility care with moderate level of medical decision making, per day, if using time, at least 30 minutes 365 104 $110
99348 Residence visit for established patient with low level of medical decision making, per day, if using time, at least 30 minutes 335 156 $78
99308 Subsequent nursing facility care with straightforward level of medical decision making, per day, if using time, at least 15 minutes 279 82 $77
99308 Subsequent nursing facility care with straightforward level of medical decision making, per day, if using time, at least 15 minutes 177 60 $77
99306 Initial nursing facility care with high level of medical decision making, per day, if using time, at least 45 minutes 147 113 $187
99214 Established patient office or other outpatient visit, 30-39 minutes 75 30 $133
99344 Residence visit for new patient with moderate level of medical decision making, per day, if using time, at least 60 minutes 69 69 $149
99306 Initial nursing facility care with high level of medical decision making, per day, if using time, at least 45 minutes 59 53 $187

In context: peer comparison

Among 2 peers in this city , average services per provider: 201. This provider delivers 13× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$20
Transactions
1
Manufacturers
1
Payer (manufacturer) Industry Txns Amount
AstraZeneca Pharmaceuticals LP 1 $20.05

By nature of payment

Food and Beverage
$20

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
12,927
Patients
1,558
Total drug cost
$443,540
Drug Type Claims Patients Total cost
Atorvastatin Calcium Generic 1,714 210 $20,855
Levothyroxine Sodium Generic 1,222 152 $13,610
Potassium Chloride Generic 1,020 128 $20,318
Furosemide Generic 970 123 $5,645
Memantine Hcl Generic 953 101 $30,769
Escitalopram Oxalate Generic 886 100 $10,943
Lisinopril Generic 831 92 $7,335
Amlodipine Besylate Generic 810 100 $7,157
Eliquis (Apixaban) Brand 809 98 $274,545
Donepezil Hcl Generic 766 79 $8,109

Frequently asked questions

Auto-generated from federal data
What is Dr. Mohammad Siddique's medical specialty?
Dr. Mohammad Siddique practices Hospitalist Physician in Downers Grove, IL.
Where does Dr. Mohammad Siddique practice?
Dr. Mohammad Siddique practices at 2655 Warrenville RD Ste 500, Downers Grove, IL 605155646. Office phone: 8669490108.
What is Dr. Mohammad Siddique's NPI?
Dr. Mohammad Siddique's National Provider Identifier (NPI) is 1144439456, issued by NPPES.
Does Dr. Mohammad Siddique accept Medicare assignment?
Yes. Dr. Mohammad Siddique accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Mohammad Siddique commonly perform?
Top Medicare-reported procedures in 2023: Subsequent nursing facility care with moderate level of medical decision making (HCPCS 99309); Residence visit for established patient with moderate level of medical decision making (HCPCS 99349); Subsequent nursing facility care with moderate level of medical decision making (HCPCS 99309). Source: CMS Medicare Physician & Other Practitioners file.