Nathan Thomas Mortensen, D.O.

Primary specialty

Diagnostic Radiology PhysicianTaxonomy code 2085R0202X

License

24382 Issued in CA

Practice address

505 Parnassus Ave FL 3
San Francisco, CA 94143-2204

Phone

(415) 476-1537

Fax

(415) 476-0616

NPI assigned

Oct 3, 2012

Last updated

Oct 6, 2025By the provider in NPPES

Sex

Male

Sole proprietor

No

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

Specialties & licenses 3

Addresses

Other identifiers 2

Medicare fee-for-service enrollment

Enrolled in OR, WA, UT, CA4 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 4

Specialty

Diagnostic Radiology

Education

Other, 2012

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Evergreen Radia LLCGroup PAC ID 4587568076, 116 clinicians

Tower Imaging Medical Associates IncGroup PAC ID 2163608688, 93 clinicians

Radia California Radiology Medical Group IncGroup PAC ID 8921465998, 134 clinicians

Radia Inc P SGroup PAC ID 9931012812, 275 clinicians

Swedish Health ServicesGroup PAC ID 3173433067, 156 clinicians

Medford Radiological Group PCGroup PAC ID 2062303324, 91 clinicians

Optum Care Washington PLLCGroup PAC ID 6406752153, 684 clinicians

Radia Oregon Radiology Medical Group LLCGroup PAC ID 2961852637, 122 clinicians

Swedish Health ServicesGroup PAC ID 0244138196, 1,038 clinicians

County of Santa ClaraGroup PAC ID 1254244973, 1,000 clinicians

Okanogan County Public Hospital District No. 3Group PAC ID 6800707951, 89 clinicians

Oregon Advanced Imaging LLCGroup PAC ID 3577465376, 14 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Asante Rogue Regional Medical Center Hospital, Medford, OR, CCN 380018
• Providence St Peter Hospital Hospital, Olympia, WA, CCN 500024
• Evergreenhealth Medical Center Hospital, Kirkland, WA, CCN 500124
• Swedish Medical Center / Cherry Hill Hospital, Seattle, WA, CCN 500025
• Providence Regional Medical Center Everett Hospital, Everett, WA, CCN 500014

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Osteopathy, Doctor of Medicine

State licenses

Practice roles

Locations

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.

• County of Santa Clara

  dba Josefina Narvaez Mental Health Center MH Aoa

  • Mental Health Clinic/Center (Including Community Mental Health Center)
  • San Jose, CA
  • NPI 1699885079
  Medicare reassignment Care Compare group NPD
• Radia California Radiology Medical Group Inc

  dba Radia California

  • Diagnostic Radiology Physician
  • Santa Rosa, CA
  • NPI 1740982032

  OR, UT

  Medicare reassignment Care Compare group NPD
• Tower Imaging Medical Associates, Inc.

  • Diagnostic Radiology Physician
  • Los Angeles, CA
  • NPI 1023315074

  UT

  Medicare reassignment Care Compare group NPD
• Evergreen Radia LLC

  dba Evergreen Radia

  • Diagnostic Radiology Physician
  • Kirkland, WA
  • NPI 1922095694

  OR, UT

  Medicare reassignment Care Compare group NPD
• Okanogan County Public Hospital District No. 3

  dba Mid-Valley Hospital

  • Critical Access Hospital
  • Omak, WA
  • NPI 1255387403
  Medicare reassignment Care Compare group NPD
• Optum Care Washington PLLC

  • Multi-Specialty Clinic/Center
  • Everett, WA
  • NPI 1831186766

  Family Medicine

  Medicare reassignment Care Compare group NPD
• Oregon Advanced Imaging, LLC

  • Magnetic Resonance Imaging Radiologic Technologist
  • Medford, OR
  • NPI 1134416464
  Medicare reassignment Care Compare group NPD
• Radia Inc P S

  dba Radia

  • Diagnostic Radiology Physician
  • Lynnwood, WA
  • NPI 1932196607

  OR, UT

  Medicare reassignment Care Compare group NPD
• Radia Oregon Radiology Medical Group LLC

  dba Radia Oregon

  • Diagnostic Radiology Physician
  • Medford, OR
  • NPI 1073385423
  Medicare reassignment Care Compare group NPD
• Swedish Health Services

  dba Swedish Imaging Clinics

  • Body Imaging Physician
  • Everett, WA
  • NPI 1114356904
  Medicare reassignment Care Compare group NPD
• Swedish Health Services

  • Internal Medicine Physician
  • Seattle, WA
  • NPI 1689612954
  Medicare reassignment Care Compare group NPD
• Medford Radiological Group, PC

  • Diagnostic Radiology Physician
  • Medford, OR
  • NPI 1407938111
  Medicare reassignment Care Compare group

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

• Asante

  dba Asante Rogue Regional Medical Center

  • General Acute Care Hospital
  • Medford, OR
  • NPI 1770587107
  Care Compare affiliation
• King County Public Hospital District No. 2

  dba EvergreenHealth Medical Center

  • General Acute Care Hospital
  • Kirkland, WA
  • NPI 1033174933
  Care Compare affiliation
• Providence Health & Services Washington

  dba Providence St Peter Hospital

  • General Acute Care Hospital
  • Olympia, WA
  • NPI 1346250594
  Care Compare affiliation
• Providence Health & Services Washington

  • General Acute Care Hospital
  • Olympia, WA
  • NPI 1619176997
  Care Compare affiliation
• Providence Health & Services-Wa

  dba Providence Regional Medical Center Everett

  • Hospitalist Physician
  • Everett, WA
  • NPI 1649615220
  Care Compare affiliation
• Providence Health & Services-Wa

  • General Acute Care Hospital
  • Everett, WA
  • NPI 1700037801
  Care Compare affiliation
• Swedish Health Services

  dba Swedish Medical Center, Cherry Hill

  • General Acute Care Hospital
  • Seattle, WA
  • NPI 1356496582
  Care Compare affiliation

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

{
    "created_epoch": "1349222400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1759708800000",
    "number": "1679825400",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "550 UNIVERSITY BLVD # 641",
            "city": "INDIANAPOLIS",
            "state": "IN",
            "postal_code": "462025149",
            "telephone_number": "317-944-1816",
            "fax_number": "317-948-2803"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "505 PARNASSUS AVE FL 3",
            "city": "SAN FRANCISCO",
            "state": "CA",
            "postal_code": "941432204",
            "telephone_number": "415-476-1537",
            "fax_number": "415-476-0616"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "842 E Main St",
            "address_purpose": "LOCATION",
            "city": "Medford",
            "state": "OR",
            "postal_code": "97504",
            "country_code": "US",
            "telephone_number": "541-618-5825",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "MORTENSEN",
        "first_name": "NATHAN",
        "middle_name": "THOMAS",
        "credential": "D.O.",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2012-10-03",
        "last_updated": "2025-10-06",
        "certification_date": "2025-10-06",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "2085R0202X",
            "taxonomy_group": "",
            "desc": "Radiology, Diagnostic Radiology",
            "state": "CA",
            "license": "A87377",
            "primary": false
        },
        {
            "code": "2085R0202X",
            "taxonomy_group": "",
            "desc": "Radiology, Diagnostic Radiology",
            "state": "CA",
            "license": "24382",
            "primary": true
        },
        {
            "code": "2085R0202X",
            "taxonomy_group": "",
            "desc": "Radiology, Diagnostic Radiology",
            "state": "OR",
            "license": "DO187083",
            "primary": false
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "500745314",
            "state": "OR"
        },
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "MEDICARE",
            "identifier": "R202268",
            "state": null
        }
    ],
    "endpoints": [],
    "other_names": []
}

• Erica Morse
• Lee Jae Morse, M.D.
• Ramin Alexander Morshed, MD
• Saam Morshed, M.D.
• Peyton Carter Morss-Walton, MD
• Dale Norris Mortenson, D.C.
• Kristin Suzanne Mortimore, PA-C
• Emonjanaye Morton
• Jessica Morton
• Rebecca Morton, PT

• Diagnostic Radiology Physician in San Francisco, CA
• Providers in San Francisco, CA by specialty
• Diagnostic Radiology Physician in California

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Oct 6, 2025; 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.

Verify at the official NPI Registry.