Active NPI
Patrick Joseph Jennings, MD
- Surgery Physician
- Chicago, IL
National Provider Identifier
1518898337
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Surgery Physician
- License
- 125.088381
- Practice address
- 600 S Paulina St
Chicago, IL 60612-3806 - Phone
- (312) 942-0312
- NPI assigned
- May 28, 2026
- Sex
- Male
- Sole proprietor
- No
NPPES NPI Registry
Registry information is reported by the provider to CMS and is not verified. About this source
Specialties & licenses 2
| Specialty (taxonomy) | Code | License | State | Primary |
|---|---|---|---|---|
| Surgery Physician | 208600000X | 125.088381 | IL | Primary |
| Student in an Organized Health Care Education/Training Program | 390200000X | IL |
Addresses
Primary practice location
600 S Paulina St
Chicago, IL 60612-3806
Mailing address
600 S Paulina St
Chicago, IL 60612-3806
Medicare participation
Medicare enrollment files- Medicare fee-for-service enrollment
- Not listed in the public Medicare enrollment file
National Provider Directory
National Provider Directory- Medicare enrollment (NPD)
- Not enrolled
- Credentials
- Doctor of Medicine
Practice roles
| Organization | Specialty | Status | New patients |
|---|---|---|---|
| Rush University Medical Group | Surgery | Past | Accepting new patients |
Organizations & group practices 1
Organizations this provider is connected to: Medicare benefit reassignments (the organization bills Medicare for this provider’s services), Care Compare group memberships and National Provider Directory roles.
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1779926400000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1781827200000",
"number": "1518898337",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "600 S PAULINA ST",
"city": "CHICAGO",
"state": "IL",
"postal_code": "606123806"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "600 S PAULINA ST",
"city": "CHICAGO",
"state": "IL",
"postal_code": "606123806",
"telephone_number": "312-942-0312"
}
],
"practiceLocations": [],
"basic": {
"last_name": "JENNINGS",
"first_name": "PATRICK",
"middle_name": "JOSEPH",
"credential": "MD",
"sole_proprietor": "NO",
"sex": "M",
"enumeration_date": "2026-05-28",
"last_updated": "2026-06-19",
"certification_date": "2026-06-19",
"status": "A"
},
"taxonomies": [
{
"code": "208600000X",
"taxonomy_group": "",
"desc": "Surgery",
"state": "IL",
"license": "125.088381",
"primary": true
},
{
"code": "390200000X",
"taxonomy_group": "",
"desc": "Student in an Organized Health Care Education/Training Program",
"state": "IL",
"license": null,
"primary": false
}
],
"identifiers": [],
"endpoints": [],
"other_names": []
}Other providers in Chicago, IL
Sources for this page
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jun 19, 2026; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
- National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.