Active NPI
Mohammed S. Siddiqui, MD
- Geriatric Psychiatry Physician
- Lombard, IL
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Geriatric Psychiatry Physician
- License
- 036-131386
- Practice address
- 477 E Butterfield Rd Ste 102
Lombard, IL 60148-4880 - Phone
- (630) 528-3835
- Fax
- (630) 528-3837
- NPI assigned
- Nov 10, 2011
- Last updated
- Nov 20, 2025
- Sex
- Male
- Sole proprietor
- Yes
NPPES NPI Registry
Registry information is reported by the provider to CMS and is not verified. About this source
Specialties & licenses 1
| Specialty (taxonomy) | Code | License | State | Primary |
|---|---|---|---|---|
| Geriatric Psychiatry Physician | 2084P0805X | 036-131386 | IL | Primary |
Addresses
Primary practice location
477 E Butterfield Rd Ste 102
Lombard, IL 60148-4880
Mailing address
477 E Butterfield Rd Ste 102
Lombard, IL 60148-4880
Phone (630) 528-3835
Other identifiers 1
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 036131386 | Medicaid | IL |
Medicare participation
Medicare enrollment files- Medicare fee-for-service enrollment
- Enrolled in IL
- Eligible to order & refer
- Part B services: Yes
- Medical equipment: Yes
- Home health: Yes
- Power mobility devices: Yes
- Hospice: Yes
Enrollment records 1
Care Compare profile
Medicare Care Compare- Specialty
- Psychiatry
- Education
- Other, 1997
- Medicare assignment
- Accepts the Medicare-approved amount as payment in full
- Telehealth
- Offers telehealth services
- Group practices
Practice addresses (Care Compare)
1100 E Norris Dr
Ottawa, IL 61350-1604
Phone (815) 433-3100
1400 W Park St
Urbana, IL 61801-2334
Phone (217) 337-2000
1725 W Harrison St
Suite 955
Chicago, IL 60612-3862
Phone (312) 942-7030
2625 Butterfield Rd
Suite 138S
Oak Brook, IL 60523-1244
Phone (630) 290-2246
Hospital & facility affiliations
National Provider Directory
National Provider Directory- Medicare enrollment (NPD)
- Enrolled
- Credentials
- Doctor of Medicine
State licenses
| License | State | Type | Specialty |
|---|---|---|---|
| 036-131386 | IL | MD | Geriatric Psychiatry Physician |
Practice roles
| Organization | Specialty | Status | New patients |
|---|---|---|---|
| Rush University Medical Group | Current | Accepting new patients | |
| Siu Physicians & Surgeons, Inc | Current | Accepting new patients | |
| Rush University Medical Center | Current | Accepting new patients | |
| Edward Health Ventures | Current | Accepting new patients | |
| Ottawa Regional Hospital & Healthcare Center | Psychiatry | Current | Accepting new patients |
| Midwest Functional Psychiatry | Psychiatry | Current | Accepting new patients |
| St. Mary's Hospital, Centralia, Illinois | Current | Accepting new patients | |
| City of Hope Medical Group of Illinois PLLC | Current | Accepting new patients | |
| Ottawa Regional Hospital & Healthcare Center | Current | Accepting new patients | |
| Siu Physicians & Surgeons, Inc | Psychiatry | Current | Accepting new patients |
| Central PA Pharmacy LLC. | Current | Accepting new patients | |
| St. Mary's Hospital, Centralia, Illinois | Current | Accepting new patients | |
| St. Mary's Hospital, Centralia, Illinois | Current | Accepting new patients | |
| S S Behavioral Health Inc | Psychiatry | Current | Accepting new patients |
| Physician Services Corporation of Southern Illinois Inc. | Current | Accepting new patients | |
| Osf Multi-Specialty Group | Current | Accepting new patients | |
| Edward Health Ventures | Current | Accepting new patients | |
| Edward Health Ventures | Past | Accepting new patients |
Locations
20733 N Broad St
Carlinville, IL 62626
Phone (217) 854-3141
400 N Pleasant Ave
Centralia, IL 62801
Phone (618) 436-5221
444 N Pleasant Ave
Centralia, IL 62801
Phone (618) 436-5665
1700 W Van Buren St
#500
Chicago, IL 60612
Phone (312) 563-2875
1725 W Harrison St
Ste 955
Chicago, IL 60612
Phone (312) 563-3700
2361 Paysphere Cir
Chicago, IL 60674
Phone (847) 746-4358
7420 Solutions Ctr
Chicago, IL 60677
Phone (314) 989-3155
75 Remittance Dr
Dept 1611
Chicago, IL 60675
477 E Butterfield Rd
Ste 102
Lombard, IL 60148
Phone (630) 424-8900
2 Good Samaritan Way
Ste 320
Mount Vernon, IL 62864
Phone (618) 899-1944
120 Spalding Dr
Ste 307
Naperville, IL 60540
Phone (630) 355-1102
120 Spalding Dr
Ste 310
Naperville, IL 60540
Phone (630) 527-5575
2625 Butterfield Rd
Ste 138S
Oak Brook, IL 60523
Phone (630) 290-2246
1100 E Norris Dr
Ottawa, IL 61350
Phone (815) 416-1224
8600 State Route 91
Ste 130
Peoria, IL 61615
Phone (309) 683-5050
751 N Rutledge St
Springfield, IL 62702
Phone (217) 545-0182
1400 W Park St
Urbana, IL 61801
Phone (217) 337-2000
2520 Elisha Ave
Zion, IL 60099
Phone (800) 322-9183
Organizations & group practices 18
Organizations this provider is connected to: Medicare benefit reassignments (the organization bills Medicare for this provider’s services), Care Compare group memberships, National Provider Directory roles and organizations whose NPPES authorized official is this provider.
-
- Internal Medicine Physician
- Peoria, IL
- NPI 1922445527
-
dba OSF Saint Elizabeth Medical Center
- General Acute Care Hospital
- Ottawa, IL
- NPI 1306971080
Psychiatry
-
dba Rush University Internists
- Internal Medicine Physician
- Chicago, IL
- NPI 1093819542
-
- Geriatric Psychiatry Physician
- Lombard, IL
- NPI 1801313721
-
- Specialist
- Zion, IL
- NPI 1548258072
-
- Multi-Specialty Clinic/Center
- Bolingbrook, IL
- NPI 1962452912
-
dba SSM Health Medical Group
- Internal Medicine Physician
- Mount Vernon, IL
- NPI 1831101807
-
dba SIU HealthCare
- Endocrinology, Diabetes & Metabolism Physician
- Springfield, IL
- NPI 1558385989
Psychiatry
-
dba SSM Health St. Mary's Hospital - Centralia
- Emergency Medicine Physician
- Centralia, IL
- NPI 1770687196
-
- Psychiatry Physician
- Bolingbrook, IL
- NPI 1447125364
-
- Child & Adolescent Psychiatry Physician
- Naperville, IL
- NPI 1245281724
-
dba OSF Healthcare - Medical Group (Non-RHC Billing)
- Family Medicine Physician
- Marseilles, IL
- NPI 1558088203
Hospital & facility affiliations 6
Hospitals and other facilities this clinician is affiliated with according to Medicare Care Compare.
-
dba Endeavor Health Edward Hospital
- General Acute Care Hospital
- Naperville, IL
- NPI 1427069632
-
dba Endeavor Health Elmhurst Hospital
- General Acute Care Hospital
- Elmhurst, IL
- NPI 1548306343
-
dba OSF Saint Elizabeth Medical Center
- General Acute Care Hospital
- Peru, IL
- NPI 1588713440
-
- General Acute Care Hospital
- Oak Park, IL
- NPI 1558391706
-
- Children's Hospital
- Chicago, IL
- NPI 1801908728
-
- General Acute Care Hospital
- Chicago, IL
- NPI 1932213600
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1320883200000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1763596800000",
"number": "1639456122",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "477 E BUTTERFIELD RD STE 102",
"city": "LOMBARD",
"state": "IL",
"postal_code": "601484880",
"telephone_number": "630-528-3835",
"fax_number": "630-528-3837"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "477 E BUTTERFIELD RD STE 102",
"city": "LOMBARD",
"state": "IL",
"postal_code": "601484880",
"telephone_number": "630-528-3835",
"fax_number": "630-528-3837"
}
],
"practiceLocations": [],
"basic": {
"last_name": "SIDDIQUI",
"first_name": "MOHAMMED",
"middle_name": "S.",
"name_prefix": "Dr.",
"credential": "MD",
"sole_proprietor": "YES",
"sex": "M",
"enumeration_date": "2011-11-10",
"last_updated": "2025-11-20",
"certification_date": "2025-11-20",
"status": "A"
},
"taxonomies": [
{
"code": "2084P0805X",
"taxonomy_group": "",
"desc": "Psychiatry & Neurology, Geriatric Psychiatry",
"state": "IL",
"license": "036-131386",
"primary": true
}
],
"identifiers": [
{
"code": "05",
"desc": "MEDICAID",
"issuer": null,
"identifier": "036131386",
"state": "IL"
}
],
"endpoints": [],
"other_names": []
}
Other providers in Lombard, IL
Sources for this page
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Nov 20, 2025; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
- Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments; Order and Referring.
- Medicare Care Compare (CMS): clinician profile, group practices, facility affiliations, MIPS scores and star ratings.
- National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.