Individual provider Active NPI

Katharine Joyer Nelson, MD

  • Psychiatry Physician
  • Saint Paul, MN
National Provider Identifier
1831234889
Registry record updated Sep 4, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Psychiatry PhysicianTaxonomy code 2084P0800X
License
19409 Issued in MN
Practice address
640 Jackson St
Saint Paul, MN 55101-2502
Phone
(651) 254-4786
NPI assigned
Feb 20, 2007
Sex
Female
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Sep 4, 2026

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

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Psychiatry Physician 2084P0800X 19409 MN Primary

Addresses

Primary practice location

640 Jackson St
Saint Paul, MN 55101-2502

Mailing address

4101 Woolworth Ave
Omaha, NE 68105-1850
Phone (651) 421-6267

Other practice location 1

4101 Woolworth Ave
Omaha, NE 68105-1850
Phone (651) 421-6267

Other names 1

  • Katharine Lee Joyer Former name

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Not listed in the public Medicare enrollment file

Care Compare profile

Medicare Care Compare

Merit-based Incentive Payment System (MIPS)

Final score
88.63 of 100Reported as group
Quality
75.41
Promoting interoperability
100
Improvement activities
40
Cost
75.75

National Provider Directory

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

State licenses

LicenseStateTypeSpecialty
19409MNMDPsychiatry Physician

NPI Registry JSON

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

{
    "created_epoch": "1171929600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1788480000000",
    "number": "1831234889",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "4101 WOOLWORTH AVE",
            "city": "OMAHA",
            "state": "NE",
            "postal_code": "681051850",
            "telephone_number": "651-421-6267"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "640 JACKSON ST",
            "city": "SAINT PAUL",
            "state": "MN",
            "postal_code": "551012502",
            "telephone_number": "651-254-4786"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "4101 Woolworth Ave",
            "address_purpose": "LOCATION",
            "city": "Omaha",
            "state": "NE",
            "postal_code": "681051850",
            "country_code": "US",
            "telephone_number": "651-421-6267",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "NELSON",
        "first_name": "KATHARINE",
        "middle_name": "JOYER",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2007-02-20",
        "last_updated": "2026-09-04",
        "certification_date": "2026-09-04",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "2084P0800X",
            "taxonomy_group": "",
            "desc": "Psychiatry & Neurology, Psychiatry",
            "state": "MN",
            "license": "19409",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": [
        {
            "first_name": "KATHARINE",
            "last_name": "JOYER",
            "middle_name": "LEE",
            "credential": "MD",
            "code": "1",
            "type": "Former Name"
        }
    ]
}

Other providers in Saint Paul, MN

Sources for this page

  • NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Sep 4, 2026; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
  • 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.