Active NPI
Robert Anthony Jajko, M.D.
- Diagnostic Radiology Physician
- Downers Grove, IL
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Diagnostic Radiology Physician
- License
- 036128946
- Practice address
- 3815 Highland Ave
Downers Grove, IL 60515-1500 - Phone
- (630) 275-5900
- Fax
- (630) 275-0075
- NPI assigned
- Jun 19, 2009
- 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 |
|---|---|---|---|---|
| Diagnostic Radiology Physician | 2085R0202X | 036128946 | IL | Primary |
Addresses
Primary practice location
3815 Highland Ave
Downers Grove, IL 60515-1500
Mailing address
29373 Network PL
Chicago, IL 60673-1293
Phone (847) 390-5900
Other practice location 1
1740 W Taylor St
Dept of Radiology M/C 931
Chicago, IL 60612-7232
Phone (800) 842-1002
Electronic endpoints 3
| Type | Endpoint | Use | Affiliation |
|---|---|---|---|
| Direct Messaging Address | rjajko250913@direct.myadvocateaurora.org | Direct | |
| CONNECT URL | https://esmd.abilitynetwork.com:8291/Gateway/DocumentSubmission/2_0/NhinService/XDRRequest_Service | Other | ABILITY Network |
| FHIR URL | https://EpicFHIR.aurora.org/FHIR/MYAURORA/api/FHIR/DSTU2/ |
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
- Diagnostic Radiology
- Education
- Other, 2009
- Medicare assignment
- Accepts the Medicare-approved amount as payment in full
- Group practices
Practice addresses (Care Compare)
1775 Dempster St
Park Ridge, IL 60068-1143
Phone (847) 723-2210
1786 Moon Lake Blvd
Hoffman Est, IL 60194-5029
Phone (847) 755-8208
3815 Highland Ave
Downers Grove, IL 60515-1500
Phone (630) 275-5900
800 Biesterfield Rd
Elk Grove Village, IL 60007-3361
Hospital & facility affiliations
National Provider Directory
National Provider Directory- Medicare enrollment (NPD)
- Enrolled
- Credentials
- Doctor of Medicine
State licenses
| License | State | Type | Specialty |
|---|---|---|---|
| 036128946 | IL | MD | Diagnostic Radiology Physician |
Practice roles
| Organization | Specialty | Status | New patients |
|---|---|---|---|
| Integrated Imaging Consultants LLC | Diagnostic Radiology | Current | Accepting new patients |
| Advocate Health & Hospitals Corporation | Current | Accepting new patients | |
| Bonaventure Medical Foundation, LLC | Current | Accepting new patients | |
| Advocate Health and Hospitals Corporation | Current | Accepting new patients | |
| Oncall Imaging LLC | Diagnostic Radiology | Current | Accepting new patients |
Locations
214 McHenry Rd
Buffalo Grove, IL 60089
Phone (847) 459-1160
29373 Network Pl
Chicago, IL 60673
3815 Highland Ave
Downers Grove, IL 60515
Phone (630) 275-5900
1786 Moon Lake Blvd
Hoffman Estates, IL 60169
Phone (847) 640-5640
1775 W Dempster St
Park Ridge, IL 60068
Phone (847) 723-5150
Organizations & group practices 6
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.
-
dba Alexian Brothers Medical Foundation
- Family Medicine Physician
- Elk Grove Village, IL
- NPI 1588775647
-
- Diagnostic Radiology Physician
- Park Ridge, IL
- NPI 1700285335
-
dba Advocate Medical Group
- Multi-Specialty Clinic/Center
- Oak Brook, IL
- NPI 1700824455
-
dba Advocate Christ Medical Group
- Medical Specialty Clinic/Center
- Oak Lawn, IL
- NPI 1912936014
-
dba Advocate Children's Hospital
- Children's Hospital
- Oak Lawn, IL
- NPI 1508315516
Hospital & facility affiliations 6
Hospitals and other facilities this clinician is affiliated with according to Medicare Care Compare.
-
dba Advocate Children's Hospital
- Children's Hospital
- Oak Lawn, IL
- NPI 1508315516
-
dba Advocate Christ Medical Center
- General Acute Care Hospital
- Oak Lawn, IL
- NPI 1548375082
-
dba Advocate Good Samaritan Hospital
- General Acute Care Hospital
- Downers Grove, IL
- NPI 1578670543
-
dba Advocate Illinois Masonic Medical Center
- General Acute Care Hospital
- Chicago, IL
- NPI 1912014564
-
- General Acute Care Hospital
- Elk Grove Village, IL
- NPI 1265577191
-
dba Endeavor Health Edward Hospital
- General Acute Care Hospital
- Naperville, IL
- NPI 1427069632
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1245369600000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1771459200000",
"number": "1578790309",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "29373 NETWORK PL",
"city": "CHICAGO",
"state": "IL",
"postal_code": "606731293",
"telephone_number": "847-390-5900"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "3815 HIGHLAND AVE",
"city": "DOWNERS GROVE",
"state": "IL",
"postal_code": "605151500",
"telephone_number": "630-275-5900",
"fax_number": "630-275-0075"
}
],
"practiceLocations": [
{
"address_1": "1740 W Taylor St",
"address_2": "Dept of Radiology M/C 931",
"address_purpose": "LOCATION",
"city": "Chicago",
"state": "IL",
"postal_code": "606127232",
"country_code": "US",
"telephone_number": "800-842-1002",
"country_name": "United States",
"address_type": "DOM"
}
],
"basic": {
"last_name": "JAJKO",
"first_name": "ROBERT",
"middle_name": "ANTHONY",
"credential": "M.D.",
"sole_proprietor": "YES",
"sex": "M",
"enumeration_date": "2009-06-19",
"last_updated": "2026-02-19",
"certification_date": "2026-02-19",
"status": "A"
},
"taxonomies": [
{
"code": "2085R0202X",
"taxonomy_group": "",
"desc": "Radiology, Diagnostic Radiology",
"state": "IL",
"license": "036128946",
"primary": true
}
],
"identifiers": [],
"endpoints": [
{
"endpointType": "DIRECT",
"endpointTypeDescription": "Direct Messaging Address",
"endpoint": "rjajko250913@direct.myadvocateaurora.org",
"affiliation": "N",
"use": "DIRECT",
"useDescription": "Direct",
"address_1": "3815 Highland Ave",
"city": "Downers Grove",
"state": "IL",
"country_code": "US",
"postal_code": "605151500",
"country_name": "United States",
"address_type": "DOM"
},
{
"endpointType": "CONNECT",
"endpointTypeDescription": "CONNECT URL",
"endpoint": "https://esmd.abilitynetwork.com:8291/Gateway/DocumentSubmission/2_0/NhinService/XDRRequest_Service",
"affiliation": "Y",
"endpointDescription": "2.16.840.1.113883.3.667.2",
"affiliationName": "ABILITY Network",
"use": "OTHER",
"useDescription": "Other",
"useOtherDescription": "CMS esMD eMDR",
"contentType": "CSV",
"contentTypeDescription": "CSV",
"address_1": "64 S Price Rd Ste B",
"city": "Brownsville",
"state": "TX",
"country_code": "US",
"postal_code": "785212459",
"country_name": "United States",
"address_type": "DOM"
},
{
"endpointType": "FHIR",
"endpointTypeDescription": "FHIR URL",
"endpoint": "https://EpicFHIR.aurora.org/FHIR/MYAURORA/api/FHIR/DSTU2/",
"affiliation": "N",
"address_1": "3815 Highland Ave",
"city": "Downers Grove",
"state": "IL",
"country_code": "US",
"postal_code": "605151500",
"country_name": "United States",
"address_type": "DOM"
}
],
"other_names": []
}
Other providers in Downers Grove, IL
Sources for this page
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Feb 19, 2026; 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.