Trisha N. Halvorsen, MD

Primary specialty

Obstetrics & Gynecology PhysicianTaxonomy code 207V00000X

License

74961 Issued in MN

Practice address

3300 Oakdale Ave N
Robbinsdale, MN 55422-2926

Phone

(763) 520-5200

NPI assigned

Jul 18, 2012

Last updated

Sep 1, 2026By the provider in NPPES

Sex

Female

Sole proprietor

No

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

Specialties & licenses 3

Addresses

Other names 1

• Trisha Nadeen Morton Former name

Medicare fee-for-service enrollment

Enrolled in WA, MN2 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

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

State licenses

Practice roles

Locations

Interoperability endpoints

• Direct secure messaging: thalvorsen15705@skagit.direct-ci.com

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.

• St. Luke's Hospital of Duluth

  dba Aspirus St Lukes Hospital Inpatient Rehab

  • Rehabilitation Hospital Unit
  • Duluth, MN
  • NPI 1902845068
  Medicare reassignment NPD
• Obhg Washington, PC

  • Obstetrics & Gynecology Physician
  • Silverdale, WA
  • NPI 1962729525
  Medicare reassignment NPD
• Public Hospital Dist No 1 Skagit

  dba Skagit Regional Clinics

  • General Practice Physician
  • Mount Vernon, WA
  • NPI 1023332749
  Medicare reassignment NPD
• North Memorial Health Care

  dba North Memorial Health Hospital

  • General Acute Care Hospital
  • Robbinsdale, MN
  • NPI 1851344907
  Medicare reassignment
• St. Luke's Hospital of Duluth

  dba Aspirus St Lukes Clinic Duluth Grand Ave

  • Family Medicine Physician
  • Duluth, MN
  • NPI 1033161161
  NPD
• St. Luke's Hospital of Duluth

  dba Aspirus Palliative Medicine - Minnesota

  • Hospice and Palliative Medicine (Internal Medicine) Physician
  • Duluth, MN
  • NPI 1073480968
  NPD
• Public Hospital Dist No 1 Skagit

  dba Skagit Regional Health - Mount Vernon Physical Therapy

  • Physical Therapist
  • Mount Vernon, WA
  • NPI 1811460652
  NPD
• Public Hospital District No 1 Skagit

  dba Skagit Regional Health - Arlington Pediatrics

  • Pediatrics Physician
  • Arlington, WA
  • NPI 1043241540
  NPD
• Providence Health & Services-Wa

  • General Acute Care Hospital
  • Everett, WA
  • NPI 1700037801
  NPD (past)
• Public Hospital Dist No 1 Skagit

  dba Skagit Valley Hospital

  • General Acute Care Hospital
  • Mount Vernon, WA
  • NPI 1053357244
  NPD (past)

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

{
    "created_epoch": "1342569600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1788220800000",
    "number": "1245585959",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "3300 OAKDALE AVE N",
            "city": "ROBBINSDALE",
            "state": "MN",
            "postal_code": "554222926",
            "telephone_number": "763-520-5200"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "3300 OAKDALE AVE N",
            "city": "ROBBINSDALE",
            "state": "MN",
            "postal_code": "554222926",
            "telephone_number": "763-520-5200"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "HALVORSEN",
        "first_name": "TRISHA",
        "middle_name": "N.",
        "name_prefix": "Dr.",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2012-07-18",
        "last_updated": "2026-09-01",
        "certification_date": "2026-09-01",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207V00000X",
            "taxonomy_group": "",
            "desc": "Obstetrics & Gynecology",
            "state": "MN",
            "license": "74961",
            "primary": true
        },
        {
            "code": "207V00000X",
            "taxonomy_group": "",
            "desc": "Obstetrics & Gynecology",
            "state": "WA",
            "license": "MD60654825",
            "primary": false
        },
        {
            "code": "207V00000X",
            "taxonomy_group": "",
            "desc": "Obstetrics & Gynecology",
            "state": "NE",
            "license": "6838",
            "primary": false
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": [
        {
            "first_name": "TRISHA",
            "last_name": "MORTON",
            "middle_name": "NADEEN",
            "code": "1",
            "type": "Former Name"
        }
    ]
}

• Holley Gullickson
• Alexis Mae Guttormson, RDN, LD, CNSC
• Mark R Hagstrom, MD
• Emily Lynne Hahn-Carlson, MA
• Joy M Larsen Haidle, M.S., C.G.C.
• Deborah Onstad Haney, RNC, NP
• Robert Patrick Hannon, D.D.S.
• Gail Marie Hansen, PA C
• Kristin R Hanson, M.D.
• Laura Kristen Hanvelt, PA-C

• Obstetrics & Gynecology Physician in Robbinsdale, MN
• Providers in Robbinsdale, MN by specialty
• Obstetrics & Gynecology Physician in Minnesota

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Sep 1, 2026; 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.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.