Individual provider Active NPI

Grant Harmon, MD

  • Radiation Oncology Physician
  • Gresham, OR
National Provider Identifier
1639606379
Registry record updated Jun 6, 2025
On this page

Key facts

NPPES NPI Registry
Primary specialty
Radiation Oncology PhysicianTaxonomy code 2085R0001X
License
MD209685 Issued in OR
Practice address
24950 SE Stark St
Gresham, OR 97030
Phone
(503) 674-1152
NPI assigned
May 12, 2017
Sex
Male
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Jun 6, 2025

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

Specialties & licenses 3

Specialty (taxonomy)CodeLicenseStatePrimary
Radiation Oncology Physician 2085R0001X 125071100 IL
Student in an Organized Health Care Education/Training Program 390200000X
Radiation Oncology Physician 2085R0001X MD209685 OR Primary

Addresses

Primary practice location

24950 SE Stark St
Gresham, OR 97030

Mailing address

PO Box 3777
Portland, OR 97208-3777

Other practice location 1

510 SW Ramsey Ave
Grants Pass, OR 97527-5554
Phone (541) 789-4673

Other practice location 2

2825 E Barnett Rd
Medford, OR 97504-8332
Phone (541) 789-7000

Other practice location 3

940 Royal Ave
Medford, OR 97504-6193
Phone (541) 732-7000

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in OR, WA2 enrollments
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 2

Enrollment IDStateProvider typePAC IDDetails
I20220526001108 OR Practitioner - Radiation Oncology 9335497213 Reassigns benefits to 2 organizations
I20250703000170 WA Practitioner - Radiation Oncology 9335497213 Reassigns benefits to 1 organization

Care Compare profile

Medicare Care Compare
Specialty
Radiation Oncology
Education
Loyola University of Chicago, Stritch School of Medicine, 2017
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices
Legacy Clinics LLCGroup PAC ID 0244144004, 714 clinicians
Radiation Oncology Group Consultants P CGroup PAC ID 0446248405, 5 clinicians

Practice addresses (Care Compare)

1130 NW 22ND Ave
Suite 110
Portland, OR 97210-2934
Phone (503) 413-8654

2825 E Barnett Rd
Medford, OR 97504-8332
Phone (541) 789-4263

Hospital & facility affiliations

National Provider Directory

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

State licenses

LicenseStateTypeSpecialty
MD209685ORMDRadiation Oncology Physician

Practice roles

OrganizationSpecialtyStatusNew patients
Legacy Salmon Creek Hospital Radiation Oncology CurrentSince Jun 6, 2025 Accepting new patients
Legacy Clinics LLC CurrentSince Jun 6, 2025 Accepting new patients
Loyola University Medical Center Current Accepting new patients
Radiation Oncology Group Consultants, PC Radiation Oncology CurrentSince Jul 1, 2022 Accepting new patients
Legacy Salmon Creek Hospital CurrentSince Jun 6, 2025 Accepting new patients
Legacy Mount Hood Medical Center PastSince Jun 8, 2025 Accepting new patients
Legacy Clinics LLC Past Accepting new patients
Radiation Oncologists PC Radiation Oncology PastSince Jun 8, 2025 Accepting new patients

Locations

2160 S 1st Ave
Maywood, IL 60153
Phone (708) 216-4400

2825 E Barnett Rd
Medford, OR 97504
Phone (541) 282-6770

1919 NW Lovejoy St
Portland, OR 97209
Phone (503) 415-5600

1130 NW 22nd Ave
Ste 110
Portland, OR 97210
Phone (503) 413-8654

1130 NW 22nd Ave
Ste 220
Portland, OR 97210
Phone (503) 413-4134

1130 NW 22nd Ave
Ste LL50
Portland, OR 97210
Phone (503) 413-7135

2121 NE 139th St
Ste 100
Vancouver, WA 98686
Phone (360) 487-1700

Interoperability endpoints

  • Direct secure messaging: gharmon57303@direct.luhs.org

Organizations & group practices 8

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": "1494547200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1749168000000",
    "number": "1639606379",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "PO BOX 3777",
            "city": "PORTLAND",
            "state": "OR",
            "postal_code": "972083777"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "24950 SE STARK ST",
            "city": "GRESHAM",
            "state": "OR",
            "postal_code": "97030",
            "telephone_number": "503-674-1152"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "510 SW Ramsey Ave",
            "address_purpose": "LOCATION",
            "city": "Grants Pass",
            "state": "OR",
            "postal_code": "975275554",
            "country_code": "US",
            "telephone_number": "541-789-4673",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "2825 E Barnett Rd",
            "address_purpose": "LOCATION",
            "city": "Medford",
            "state": "OR",
            "postal_code": "975048332",
            "country_code": "US",
            "telephone_number": "541-789-7000",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "940 Royal Ave",
            "address_purpose": "LOCATION",
            "city": "Medford",
            "state": "OR",
            "postal_code": "975046193",
            "country_code": "US",
            "telephone_number": "541-732-7000",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "HARMON",
        "first_name": "GRANT",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2017-05-12",
        "last_updated": "2025-06-06",
        "certification_date": "2025-06-06",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "2085R0001X",
            "taxonomy_group": "",
            "desc": "Radiology, Radiation Oncology",
            "state": "IL",
            "license": "125071100",
            "primary": false
        },
        {
            "code": "390200000X",
            "taxonomy_group": "",
            "desc": "Student in an Organized Health Care Education/Training Program",
            "state": null,
            "license": null,
            "primary": false
        },
        {
            "code": "2085R0001X",
            "taxonomy_group": "",
            "desc": "Radiology, Radiation Oncology",
            "state": "OR",
            "license": "MD209685",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Gresham, OR

Sources for this page

Verify at the official NPI Registry.