Individual provider Active NPI

Teresa A Mulzer, APNP

  • Nurse Practitioner
  • De Pere, WI
National Provider Identifier
1861959371
Registry record updated Dec 11, 2025
On this page

Key facts

NPPES NPI Registry
Primary specialty
Nurse PractitionerTaxonomy code 363L00000X
License
9071 Issued in WI
Practice address
1716 Lawrence Dr Ste 103
De Pere, WI 54115-9108
Phone
(920) 632-6800
Fax
(920) 632-6806
NPI assigned
Feb 21, 2019
Last updated
Dec 11, 2025By the provider in NPPES
Sex
Female
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Dec 11, 2025

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

Specialties & licenses 2

Specialty (taxonomy)CodeLicenseStatePrimary
Family Nurse Practitioner 363LF0000X 9071-33 WI
Nurse Practitioner 363L00000X 9071 WI Primary

Addresses

Primary practice location

1716 Lawrence Dr Ste 103
De Pere, WI 54115-9108

Mailing address

1716 Lawrence Dr Ste 103
De Pere, WI 54115-9108
Phone (920) 632-6800

Other practice location 1

2700 W 9th Ave Ste 305
Oshkosh, WI 54904-7865
Phone (920) 632-6800

Other practice location 2

1501 S Madison St
Appleton, WI 54915-1846
Phone (920) 632-6800

Other practice location 3

451 E Brooklyn St Ste 1
Chilton, WI 53014-1595
Phone (920) 632-6800

Other practice location 4

1540 Lyon Dr
Neenah, WI 54956-5035
Phone (920) 632-6800

Other practice location 5

1506 S Oneida St
Appleton, WI 54915-1305
Phone (920) 632-6800

Other practice location 6

614 Memorial Dr
Chilton, WI 53014-1568
Phone (920) 632-6800

Other practice location 7

500 S Oakwood Rd
Oshkosh, WI 54904-7944
Phone (920) 632-6800

Other identifiers 1

IdentifierTypeStateIssuer
100088577MedicaidWI

Other names 1

  • Teresa A Besaw Former name

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in WI
Eligible to order & refer
  • Part B services: Yes
  • Medical equipment: Yes
  • Home health: Yes
  • Power mobility devices: Yes
  • Hospice: No
Green means eligible to order or refer.

Enrollment records 1

Enrollment IDStateProvider typePAC IDDetails
I20190530001351 WI Practitioner - Nurse Practitioner 1456694728 Reassigns benefits to 1 organization

Care Compare profile

Medicare Care Compare
Specialty
Nurse Practitioner
Education
Other, 2018
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Telehealth
Offers telehealth services
Group practices
Alleviate Pain and Spine, SCGroup PAC ID 9436670916, 8 clinicians

Practice addresses (Care Compare)

1716 Lawrence Dr
Suite 103
De Pere, WI 54115-9108
Phone (920) 276-8600

Hospital & facility affiliations

National Provider Directory

National Provider Directory
Medicare enrollment (NPD)
Enrolled
Credentials
Nurse Practitioner

State licenses

LicenseStateTypeSpecialty
9071-33WIMDFamily Nurse Practitioner

Practice roles

OrganizationSpecialtyStatusNew patients
Alleviate Pain and Spine, SC CurrentSince Jul 1, 2025 Accepting new patients
Vital Anesthesia Associates SC PastSince Jul 1, 2025 Accepting new patients

Locations

1506 S Oneida St
Appleton, WI 54915
Phone (920) 730-4950

1501 S Madison St
Appleton, WI 54915
Phone (920) 730-4435

614 Memorial Dr
Chilton, WI 53014
Phone (800) 458-4042

451 E Brooklyn St
Ste 1
Chilton, WI 53014
Phone (920) 276-8600

1716 Lawrence Dr
#103
De Pere, WI 54115
Phone (920) 276-8600

1540 Lyon Dr
Neenah, WI 54956
Phone (920) 727-4946

500 S Oakwood Rd
Oshkosh, WI 54904
Phone (920) 223-0501

2700 W 9th Ave
Ste 305
Oshkosh, WI 54904
Phone (920) 223-3500

Interoperability endpoints

  • Direct secure messaging: tmulzer299666@direct.myadvocateaurora.org

Organizations & group practices 2

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 1

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": "1550707200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1765411200000",
    "number": "1861959371",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "1716 LAWRENCE DR STE 103",
            "city": "DE PERE",
            "state": "WI",
            "postal_code": "541159108",
            "telephone_number": "920-632-6800",
            "fax_number": "920-632-6806"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1716 LAWRENCE DR STE 103",
            "city": "DE PERE",
            "state": "WI",
            "postal_code": "541159108",
            "telephone_number": "920-632-6800",
            "fax_number": "920-632-6806"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "2700 W 9th Ave Ste 305",
            "address_purpose": "LOCATION",
            "city": "Oshkosh",
            "state": "WI",
            "postal_code": "549047865",
            "country_code": "US",
            "telephone_number": "920-632-6800",
            "fax_number": "920-632-6806",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "1501 S Madison St",
            "address_purpose": "LOCATION",
            "city": "Appleton",
            "state": "WI",
            "postal_code": "549151846",
            "country_code": "US",
            "telephone_number": "920-632-6800",
            "fax_number": "920-632-6806",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "451 E Brooklyn St Ste 1",
            "address_purpose": "LOCATION",
            "city": "Chilton",
            "state": "WI",
            "postal_code": "530141595",
            "country_code": "US",
            "telephone_number": "920-632-6800",
            "fax_number": "920-632-6806",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "1540 Lyon Dr",
            "address_purpose": "LOCATION",
            "city": "Neenah",
            "state": "WI",
            "postal_code": "549565035",
            "country_code": "US",
            "telephone_number": "920-632-6800",
            "fax_number": "920-632-6806",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "1506 S Oneida St",
            "address_purpose": "LOCATION",
            "city": "Appleton",
            "state": "WI",
            "postal_code": "549151305",
            "country_code": "US",
            "telephone_number": "920-632-6800",
            "fax_number": "920-632-6806",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "614 Memorial Dr",
            "address_purpose": "LOCATION",
            "city": "Chilton",
            "state": "WI",
            "postal_code": "530141568",
            "country_code": "US",
            "telephone_number": "920-632-6800",
            "fax_number": "920-632-6806",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "500 S Oakwood Rd",
            "address_purpose": "LOCATION",
            "city": "Oshkosh",
            "state": "WI",
            "postal_code": "549047944",
            "country_code": "US",
            "telephone_number": "920-632-6800",
            "fax_number": "920-632-6806",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "MULZER",
        "first_name": "TERESA",
        "middle_name": "A",
        "credential": "APNP",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2019-02-21",
        "last_updated": "2025-12-11",
        "certification_date": "2025-12-11",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "363LF0000X",
            "taxonomy_group": "",
            "desc": "Nurse Practitioner, Family",
            "state": "WI",
            "license": "9071-33",
            "primary": false
        },
        {
            "code": "363L00000X",
            "taxonomy_group": "",
            "desc": "Nurse Practitioner",
            "state": "WI",
            "license": "9071",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "100088577",
            "state": "WI"
        }
    ],
    "endpoints": [],
    "other_names": [
        {
            "first_name": "TERESA",
            "last_name": "BESAW",
            "middle_name": "A",
            "code": "1",
            "type": "Former Name"
        }
    ]
}

Other providers in De Pere, WI

Sources for this page

Verify at the official NPI Registry.