NPIMap

Individual provider Active NPI

James Nathaniel Mason, D.O.

  • Hematology & Oncology Physician
  • Ogden, UT
National Provider Identifier
1114362001
Registry record updated Jul 16, 2025
On this page

Key facts

NPPES NPI Registry
Primary specialty
Hematology & Oncology PhysicianTaxonomy code 207RH0003X
License
Q8954 Issued in TX
Practice address
4403 Harrison Blvd Ste 1670
Ogden, UT 84403-3306
Phone
(801) 387-7150
NPI assigned
May 6, 2013
Sex
Male
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Jul 16, 2025

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

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Hematology & Oncology Physician 207RH0003X Q8954 TX Primary

Addresses

Primary practice location

4403 Harrison Blvd Ste 1670
Ogden, UT 84403-3306

Mailing address

PO Box 844658
Dallas, TX 75284-4658

Other practice location 1

2401 S 31st St
Temple, TX 76508-0001
Phone (254) 724-2111

Electronic endpoints 1

TypeEndpointUseAffiliation
Direct Messaging Address jmason25390@direct.sw.org Direct

Medicare participation

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

Enrollment records 1

Enrollment IDStateProvider typePAC IDDetails
I20250721003723 UT Practitioner - Hematology/Oncology 7810276375 Reassigns benefits to 1 organization

Care Compare profile

Medicare Care Compare
Specialty
Hematology/Oncology
Education
Oklahoma State University College of Osteopathic Medicine, 2013
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Telehealth
Offers telehealth services
Group practices
Ihc Health Services IncGroup PAC ID 1850209420, 3,948 clinicians

Practice addresses (Care Compare)

4401 Harrison Blvd
Ogden, UT 84403-3195
Phone (801) 387-3364

Hospital & facility affiliations

National Provider Directory

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

Practice roles

OrganizationSpecialtyStatusNew patients
Ihc Health Services, Inc. CurrentSince Sep 4, 2025 Accepting new patients
Ihc Health Services Inc Current Accepting new patients
Ihc Health Services Inc CurrentSince Sep 4, 2025 Accepting new patients
Ihc Health Services Inc Hematology & Oncology PastSince Jul 22, 2025 Accepting new patients
Ihc Health Services Inc Past Accepting new patients

Locations

700 S Highway 99
Ste 3
Fillmore, UT 84631
Phone (435) 743-5555

201 W Layton Pkwy
Ste 2A
Layton, UT 84041
Phone (801) 387-7185

4403 Harrison Blvd
Ste 1670
Ogden, UT 84403
Phone (801) 387-7125

4401 Harrison Blvd
South Ogden, UT 84403
Phone (801) 387-2800

Interoperability endpoints

  • Direct secure messaging: jmason25390@direct.sw.org

Organizations & group practices 5

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.

Hospital & facility affiliations 5

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": "1367798400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1752624000000",
    "number": "1114362001",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "PO BOX 844658",
            "city": "DALLAS",
            "state": "TX",
            "postal_code": "752844658"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "4403 HARRISON BLVD STE 1670",
            "city": "OGDEN",
            "state": "UT",
            "postal_code": "844033306",
            "telephone_number": "801-387-7150"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "2401 S 31st St",
            "address_purpose": "LOCATION",
            "city": "Temple",
            "state": "TX",
            "postal_code": "765080001",
            "country_code": "US",
            "telephone_number": "254-724-2111",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "MASON",
        "first_name": "JAMES",
        "middle_name": "NATHANIEL",
        "credential": "D.O.",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2013-05-06",
        "last_updated": "2025-07-16",
        "certification_date": "2025-07-16",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207RH0003X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Hematology & Oncology",
            "state": "TX",
            "license": "Q8954",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [
        {
            "endpointType": "DIRECT",
            "endpointTypeDescription": "Direct Messaging Address",
            "endpoint": "jmason25390@direct.sw.org",
            "affiliation": "N",
            "use": "DIRECT",
            "useDescription": "Direct",
            "address_1": "2401 S 31st St",
            "city": "Temple",
            "state": "TX",
            "country_code": "US",
            "postal_code": "765080001",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "other_names": []
}

Other providers in Ogden, UT

Sources for this page

Verify at the official NPI Registry.