NPIMap

Individual provider Active NPI

Colin Harari

  • Radiation Oncology Physician
  • Madison, WI
National Provider Identifier
1922635895
Registry record updated Nov 21, 2025
On this page

Key facts

NPPES NPI Registry
Primary specialty
Radiation Oncology PhysicianTaxonomy code 2085R0001X
License
77652 Issued in WI
Practice address
600 Highland Ave
Madison, WI 53792-0001
Phone
(608) 915-1200
NPI assigned
Mar 23, 2020
Last updated
Nov 21, 2025By the provider in NPPES
Sex
Male
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Nov 21, 2025

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 77652 WI Primary

Addresses

Primary practice location

600 Highland Ave
Madison, WI 53792-0001

Mailing address

7974 Uw Health CT
Middleton, WI 53562-5531

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in WI, IL2 enrollments
Eligible to order & refer
  • Part B services
  • Medical equipment
  • Home health
  • Power mobility devices
  • Hospice
Green means eligible to order or refer.

Enrollment records 2

Enrollment IDStateProvider typePAC IDDetails
I20230705003292 WI Practitioner - Radiation Oncology 0042612855 Reassigns benefits to 2 organizations
I20240508003466 IL Practitioner - Radiation Oncology 0042612855 Reassigns benefits to 1 organization

Care Compare profile

Medicare Care Compare
Specialty
Radiation Oncology
Education
University of Wisconsin School of Medicine, 2020
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Telehealth
Offers telehealth services
Group practices
Rockford Health PhysiciansGroup PAC ID 2567374036, 520 clinicians

Practice addresses (Care Compare)

2400 N Rockton Ave
Rockford, IL 61103-3655
Phone (815) 971-5000

600 Highland Ave
Madison, WI 53792-0001
Phone (608) 263-6400

Hospital & facility affiliations

National Provider Directory

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

State licenses

LicenseStateTypeSpecialty
77652WIMDRadiation Oncology Physician

Practice roles

OrganizationSpecialtyStatusNew patients
Rockford Health Physicians CurrentSince Mar 12, 2024 Accepting new patients
St Luke's Methodist Hospital Current Accepting new patients
Mercy Health System Corporation Current Accepting new patients
RMH Pathologists, LTD Current Accepting new patients
University of Wisconsin Medical Foundation, Inc CurrentSince Sep 21, 2025 Accepting new patients
Mercy Health System Corporation CurrentSince Jun 8, 2023 Accepting new patients
University of Wisconsin Medical Foundation, Inc CurrentSince Sep 21, 2025 Accepting new patients
Mercy Health System Corporation CurrentSince Jun 8, 2023 Accepting new patients
University of Wisconsin Medical Foundation Inc Past Accepting new patients

Locations

29624 Network Pl
Chicago, IL 60673
Phone (608) 741-7652

2300 N Rockton Ave
Rockford, IL 61103

2400 N Rockton Ave
Rockford, IL 61103
Phone (815) 971-6310

8201 E Riverside Blvd
Rockford, IL 61114
Phone (815) 971-4066

1000 Mineral Point Ave
Janesville, WI 53548
Phone (608) 261-6868

4621 Eastpark Blvd
Madison, WI 53718
Phone (608) 914-0100

600 Highland Ave
Madison, WI 53792
Phone (608) 263-0325

7974 Uw Health Ct
Middleton, WI 53562
Phone (608) 829-5270

Interoperability endpoints

  • Direct secure messaging: charari609332@direct.unitypoint.org

Organizations & group practices 9

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 6

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": "1584921600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1763683200000",
    "number": "1922635895",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "7974 UW HEALTH CT",
            "city": "MIDDLETON",
            "state": "WI",
            "postal_code": "535625531"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "600 HIGHLAND AVE",
            "city": "MADISON",
            "state": "WI",
            "postal_code": "537920001",
            "telephone_number": "608-915-1200"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "HARARI",
        "first_name": "COLIN",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2020-03-23",
        "last_updated": "2025-11-21",
        "certification_date": "2025-11-21",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "2085R0001X",
            "taxonomy_group": "",
            "desc": "Radiology, Radiation Oncology",
            "state": "WI",
            "license": "77652",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Madison, WI

Sources for this page

Verify at the official NPI Registry.