Individual provider Active NPI

Ramji Ramaswamy Rajendran, MD

  • Radiation Oncology Physician
  • Elk Grove Village, IL
National Provider Identifier
1982760773
Registry record updated May 18, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Radiation Oncology PhysicianTaxonomy code 2085R0001X
License
036-124964 Issued in IL
Practice address
800 Biesterfield Rd
Suite 110
Elk Grove Village, IL 60007-3361
Phone
(847) 981-5760
Fax
(847) 956-5138
NPI assigned
Dec 28, 2006
Last updated
May 18, 2026By the provider in NPPES
Sex
Male
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on May 18, 2026

Registry information is reported by the provider to CMS and is not verified. About this source

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Radiation Oncology Physician 2085R0001X 036-124964 IL Primary

Addresses

Primary practice location

800 Biesterfield Rd
Suite 110
Elk Grove Village, IL 60007-3361

Mailing address

700 Commerce Dr
Suite 500
Oak Brook, IL 60523-1546
Phone (847) 698-0600

Other practice location 1

1700 Luther Ln
Park Ridge, IL 60068-1270
Phone (847) 723-8030

Other practice location 2

2600 Patriot Blvd Ste J
Glenview, IL 60026-8024
Phone (224) 260-3100

Other identifiers 3

IdentifierTypeStateIssuer
778401002OtherILMEDICARE PTAN
036124964MedicaidIL
558620004OtherILMEDICARE PTAN

Electronic endpoints 2

TypeEndpointUseAffiliation
Direct Messaging Address rrajendran236415@direct.myadvocateaurora.org Direct
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
Green means eligible to order or refer.

Enrollment records 1

Enrollment IDStateProvider typePAC IDDetails
I20100818000121 IL Practitioner - Radiation Oncology 2567596125 Reassigns benefits to 2 organizations

Care Compare profile

Medicare Care Compare
Specialty
Radiation Oncology
Education
University of Illinois College of Med (CHI/Peor/Rock/CHM-Urb), 2005
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices
Uropartners LLCGroup PAC ID 9436182946, 133 clinicians
Radiation Oncology Consultants, LTDGroup PAC ID 0345138509, 19 clinicians

Practice addresses (Care Compare)

2225 Enterprise Dr
Suite 2511
Westchester, IL 60154-5805
Phone (708) 486-0076

2600 Patriot Blvd
J
Glenview, IL 60026-8024
Phone (224) 260-3100

800 Biesterfield Rd
Suite 110
Elk Grove Village, IL 60007-3363
Phone (847) 981-5760

Hospital & facility affiliations

Merit-based Incentive Payment System (MIPS)

Final score
71.69 of 100Reported as group
Quality
64.46
Improvement activities
40

Merit-based Incentive Payment System (MIPS)

Final score
95.19 of 100Reported as apm
Quality
83.05
Promoting interoperability
100
Improvement activities
40

National Provider Directory

National Provider Directory
Medicare enrollment (NPD)
Enrolled
Credentials
Doctor of Medicine

State licenses

LicenseStateTypeSpecialty
036-124964ILMDRadiation Oncology Physician

Practice roles

OrganizationSpecialtyStatusNew patients
Uropartners LLC Radiation Oncology Current Accepting new patients
Radiation Oncology Consultants, LTD Radiation Oncology CurrentSince Aug 1, 2010 Accepting new patients
Uropartners, LLC CurrentSince Jan 20, 2025 Accepting new patients
Precision Radiation Medicine LLC Radiation Oncology Current Accepting new patients
Uropartners, LLC CurrentSince Jan 20, 2025 Accepting new patients
Bonaventure Medical Foundation, LLC PastSince Aug 1, 2010 Accepting new patients

Locations

27750 W State Route 22
Ste G50
Barrington, IL 60010
Phone (847) 842-0300

900 W Nelson St
Chicago, IL 60657
Phone (773) 296-7089

3815 Highland Ave
Downers Grove, IL 60515
Phone (630) 275-5900

800 Biesterfield Rd
Ste 110
Elk Grove Vlg, IL 60007
Phone (847) 981-3576

2600 Patriot Blvd
Ste J
Glenview, IL 60026
Phone (224) 260-3100

1555 N Barrington Rd
Ste 1400
Hoffman Estates, IL 60169
Phone (847) 755-3273

660 N Westmoreland Rd
#302
Lake Forest, IL 60045

801 S Milwaukee Ave
Libertyville, IL 60048
Phone (847) 362-2900

801 S Milwaukee Ave
#880
Libertyville, IL 60048
Phone (847) 990-5910

700 Commerce Dr
Ste 500
Oak Brook, IL 60523
Phone (847) 698-0600

1700 Luther Ln
Park Ridge, IL 60068
Phone (847) 268-8200

1700 Luther Ln
Ste 1110
Park Ridge, IL 60068
Phone (630) 402-1463

2225 Enterprise Dr
Ste 2511
Westchester, IL 60154
Phone (708) 486-0076

2245 Enterprise Dr
Ste 4506
Westchester, IL 60154

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, National Provider Directory roles and organizations whose NPPES authorized official is this provider.

Hospital & facility affiliations 2

Hospitals and other facilities this clinician is affiliated with according to Medicare Care Compare.

NPI Registry JSON

The complete NPPES record for this NPI in the NPI Registry API format.

{
    "created_epoch": "1167264000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1779062400000",
    "number": "1982760773",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "700 COMMERCE DR",
            "address_2": "SUITE 500",
            "city": "OAK BROOK",
            "state": "IL",
            "postal_code": "605231546",
            "telephone_number": "847-698-0600",
            "fax_number": "847-698-0601"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "800 BIESTERFIELD RD",
            "address_2": "SUITE 110",
            "city": "ELK GROVE VILLAGE",
            "state": "IL",
            "postal_code": "600073361",
            "telephone_number": "847-981-5760",
            "fax_number": "847-956-5138"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "1700 Luther Ln",
            "address_purpose": "LOCATION",
            "city": "Park Ridge",
            "state": "IL",
            "postal_code": "600681270",
            "country_code": "US",
            "telephone_number": "847-723-8030",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "2600 Patriot Blvd Ste J",
            "address_purpose": "LOCATION",
            "city": "Glenview",
            "state": "IL",
            "postal_code": "600268024",
            "country_code": "US",
            "telephone_number": "224-260-3100",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "RAJENDRAN",
        "first_name": "RAMJI",
        "middle_name": "RAMASWAMY",
        "name_prefix": "Dr.",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2006-12-28",
        "last_updated": "2026-05-18",
        "certification_date": "2026-05-18",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "2085R0001X",
            "taxonomy_group": "",
            "desc": "Radiology, Radiation Oncology",
            "state": "IL",
            "license": "036-124964",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "MEDICARE PTAN",
            "identifier": "778401002",
            "state": "IL"
        },
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "036124964",
            "state": "IL"
        },
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "MEDICARE PTAN",
            "identifier": "558620004",
            "state": "IL"
        }
    ],
    "endpoints": [
        {
            "endpointType": "DIRECT",
            "endpointTypeDescription": "Direct Messaging Address",
            "endpoint": "rrajendran236415@direct.myadvocateaurora.org",
            "affiliation": "N",
            "use": "DIRECT",
            "useDescription": "Direct",
            "address_1": "1700 Luther Ln",
            "city": "Park Ridge",
            "state": "IL",
            "country_code": "US",
            "postal_code": "600681270",
            "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": "1700 Luther Ln",
            "city": "Park Ridge",
            "state": "IL",
            "country_code": "US",
            "postal_code": "600681270",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "other_names": []
}

Other providers in Elk Grove Village, IL

Sources for this page

Verify at the official NPI Registry.