NPIMap

Individual provider Active NPI

Amy M Maass, APNP

  • Nurse Practitioner
  • Neenah, WI
National Provider Identifier
1659857977
Registry record updated Jan 29, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Nurse PractitionerTaxonomy code 363L00000X
License
8660-33 Issued in WI
Practice address
130 2ND St
Neenah, WI 54956-2883
Phone
(920) 729-2933
Fax
(920) 727-4511
NPI assigned
Jul 19, 2018
Last updated
Jan 29, 2026By the provider in NPPES
Sex
Female
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Jan 29, 2026

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

Specialties & licenses 2

Specialty (taxonomy)CodeLicenseStatePrimary
Nurse Practitioner 363L00000X 8660-33 WI Primary
Family Nurse Practitioner 363LF0000X 8660-33 WI

Addresses

Primary practice location

130 2ND St
Neenah, WI 54956-2883

Mailing address

3 Neenah Ctr
Neenah, WI 54956-3070
Phone (920) 729-2933

Other practice location 1

2595 Development Dr Suite 150
GreenBay, WI 54311-4288
Phone (920) 204-6758

Other practice location 2

1616 N Casaloma Dr Suite 100
Appleton, WI 54913-8245
Phone (920) 204-6758

Electronic endpoints 2

TypeEndpointUseAffiliation
FHIR URL https://EpicFHIR.aurora.org/FHIR/MYAURORA/api/FHIR/DSTU2/
Direct Messaging Address amaass188917@direct.myadvocateaurora.org

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in WI
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
I20181113000808 WI Practitioner - Nurse Practitioner 7911251822 Reassigns benefits to 2 organizations

Care Compare profile

Medicare Care Compare
Specialty
Nurse Practitioner
Education
Other, 2018
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices
Thedacare, IncorporatedGroup PAC ID 1759294887, 654 clinicians
Wisconsin Spine and Pain SCGroup PAC ID 0345665469, 19 clinicians

Practice addresses (Care Compare)

130 2ND St
Neenah, WI 54956-2883
Phone (920) 725-0077

2124 Kohler Memorial Dr
Suite 110
Sheboygan, WI 53081-3174
Phone (414) 455-1153

Hospital & facility affiliations

Merit-based Incentive Payment System (MIPS)

Final score
89.02 of 100Reported as group
Quality
82.89
Improvement activities
40
Cost
74.29

National Provider Directory

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

Practice roles

OrganizationSpecialtyStatusNew patients
Wisconsin Spine and Pain SC CurrentSince Jan 15, 2022 Accepting new patients
Thedacare, Incorporated CurrentSince Feb 16, 2026 Accepting new patients
Advanced Pain Management, SC CurrentSince Feb 18, 2019 Accepting new patients
Advanced Pain Management SC CurrentSince Feb 18, 2019 Accepting new patients
Wisconsin Spine and Pain SC CurrentSince Jan 15, 2022 Accepting new patients
Thedacare Regional Medical Center-Neenah, Inc. Past Accepting new patients
Thedacare Medical Center - Shawano, Inc. Past Accepting new patients

Locations

Dept CH 17057
Palatine, IL 60055

1616 N Casaloma Dr
Appleton, WI 54913
Phone (920) 268-1516

1616 N Casaloma Dr
#100
Appleton, WI 54913

2500 E Capitol Dr
Ste W1600
Appleton, WI 54911

4480 W Spencer St
Appleton, WI 54914
Phone (920) 738-4800

225 Memorial Dr
Berlin, WI 54923
Phone (920) 361-1313

5900 S Lake Dr
Cudahy, WI 53110
Phone (414) 489-4055

2595 Development Dr
Ste 150
Green Bay, WI 54311
Phone (888) 901-7246

2501 W Beltline Hwy
Ste 601
Madison, WI 53713
Phone (608) 234-7436

1249 W Liebau Rd
Ste 200
Mequon, WI 53092
Phone (833) 821-7246

130 2nd St
Neenah, WI 54956
Phone (920) 729-2063

3 Neenah Ctr
Neenah, WI 54956
Phone (920) 454-4229

600 N Westhaven Dr
Oshkosh, WI 54904
Phone (920) 237-5000

2124 Kohler Memorial Dr
Ste 110
Sheboygan, WI 53081
Phone (833) 821-7246

2607 N Grandview Blvd
Waukesha, WI 53188
Phone (262) 290-4540

2607 N Grandview Blvd
Ste 102
Waukesha, WI 53188
Phone (262) 446-9981

N14W23800 Stone Ridge Dr
Ste 120
Waukesha, WI 53188

959 N Mayfair Rd
Ste 100
Wauwatosa, WI 53226
Phone (414) 955-7246

1000 Gateway Ct
Ste 100
West Bend, WI 53095

Interoperability endpoints

  • Direct secure messaging: amaass188917@direct.myadvocateaurora.org
  • Direct secure messaging: amy.maass@509707017715716.direct.elationemr.com

Organizations & group practices 7

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 14

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

View all 14

NPI Registry JSON

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

{
    "created_epoch": "1531958400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1769644800000",
    "number": "1659857977",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "3 NEENAH CTR",
            "city": "NEENAH",
            "state": "WI",
            "postal_code": "549563070",
            "telephone_number": "920-729-2933"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "130 2ND ST",
            "city": "NEENAH",
            "state": "WI",
            "postal_code": "549562883",
            "telephone_number": "920-729-2933",
            "fax_number": "920-727-4511"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "2595 Development Dr Suite 150",
            "address_purpose": "LOCATION",
            "city": "GreenBay",
            "state": "WI",
            "postal_code": "543114288",
            "country_code": "US",
            "telephone_number": "920-204-6758",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "1616 N Casaloma Dr Suite 100",
            "address_purpose": "LOCATION",
            "city": "Appleton",
            "state": "WI",
            "postal_code": "549138245",
            "country_code": "US",
            "telephone_number": "920-204-6758",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "MAASS",
        "first_name": "AMY",
        "middle_name": "M",
        "credential": "APNP",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2018-07-19",
        "last_updated": "2026-01-29",
        "certification_date": "2026-01-29",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "363L00000X",
            "taxonomy_group": "",
            "desc": "Nurse Practitioner",
            "state": "WI",
            "license": "8660-33",
            "primary": true
        },
        {
            "code": "363LF0000X",
            "taxonomy_group": "",
            "desc": "Nurse Practitioner, Family",
            "state": "WI",
            "license": "8660-33",
            "primary": false
        }
    ],
    "identifiers": [],
    "endpoints": [
        {
            "endpointType": "FHIR",
            "endpointTypeDescription": "FHIR URL",
            "endpoint": "https://EpicFHIR.aurora.org/FHIR/MYAURORA/api/FHIR/DSTU2/",
            "affiliation": "N",
            "address_1": "855 N Westhaven Dr",
            "city": "Oshkosh",
            "state": "WI",
            "country_code": "US",
            "postal_code": "549047668",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "endpointType": "DIRECT",
            "endpointTypeDescription": "Direct Messaging Address",
            "endpoint": "amaass188917@direct.myadvocateaurora.org",
            "affiliation": "N",
            "address_1": "855 N Westhaven Dr",
            "city": "Oshkosh",
            "state": "WI",
            "country_code": "US",
            "postal_code": "549047668",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "other_names": []
}

Other providers in Neenah, WI

Sources for this page

Verify at the official NPI Registry.