Individual provider Active NPI

Margaret Ann Rynkiewicz

  • Physician Assistant
  • Mount Pleasant, WI
National Provider Identifier
1073258604
Registry record updated Dec 29, 2025
On this page

Key facts

NPPES NPI Registry
Primary specialty
Physician AssistantTaxonomy code 363A00000X
License
5873-23 Issued in WI
Practice address
13250 Washington Ave
Mount Pleasant, WI 53177-1516
Phone
(262) 799-8700
NPI assigned
Apr 28, 2022
Sex
Female
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Dec 29, 2025

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

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Physician Assistant 363A00000X 5873-23 WI Primary

Addresses

Primary practice location

13250 Washington Ave
Mount Pleasant, WI 53177-1516

Mailing address

PO Box 735044
Chicago, IL 60673-5044
Phone (800) 326-2250

Other practice location 1

10625 W North Ave Ste 101B
Wauwatosa, WI 53226-2315
Phone (414) 877-5350

Other identifiers 1

IdentifierTypeStateIssuer
100219345MedicaidWI

Electronic endpoints 2

TypeEndpointUseAffiliation
FHIR URL https://EpicFHIR.aurora.org/FHIR/MYAURORA/api/FHIR/DSTU2/
Direct Messaging Address mrynkiewicz306839@direct.myadvocateaurora.org Direct

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
I20221003001968 WI Practitioner - Physician Assistant 3173909918 Reassigns benefits to 2 organizations

Care Compare profile

Medicare Care Compare
Specialty
Physician Assistant
Education
Other, 2022
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices
Aurora Medical Group, Inc.Group PAC ID 6709794258, 3,764 clinicians
Emergency Medicine Specialists SCGroup PAC ID 8729975461, 220 clinicians

Practice addresses (Care Compare)

13250 Washington Ave
Mount Pleasant, WI 53177-1516
Phone (262) 884-4000

201 N Mayfair Rd
Wauwatosa, WI 53226-4216
Phone (414) 259-7200

2301 N Lake Dr
Milwaukee, WI 53211-4508
Phone (414) 291-1000

3801 Spring St
Mount Pleasant, WI 53405-1667
Phone (262) 687-4011

3807 Spring St
Mount Pleasant, WI 53405-1667
Phone (262) 687-8173

5000 W Chambers St
Milwaukee, WI 53210-1650
Phone (414) 447-2000

Hospital & facility affiliations

  • Aurora Medical Center Kenosha Hospital, Kenosha, WI, CCN 520189
  • Ascension Columbia St Marys Hospital Milwaukee Hospital, Milwaukee, WI, CCN 520051

National Provider Directory

National Provider Directory
Medicare enrollment (NPD)
Enrolled

State licenses

LicenseStateTypeSpecialty
5873-23WIMDPhysician Assistant

Practice roles

OrganizationSpecialtyStatusNew patients
EMS Observation, S.C. CurrentSince Jun 5, 2022 Accepting new patients
Aurora Medical Group, Inc. CurrentSince Dec 1, 2025 Accepting new patients
Aurora Medical Group, Inc. CurrentSince Dec 1, 2025 Accepting new patients

Locations

19333 W North Ave
Brookfield, WI 53045
Phone (262) 785-2000

10101 S 27th St
Franklin, WI 53132
Phone (414) 325-4700

2301 N Lake Dr
Milwaukee, WI 53211
Phone (414) 270-4932

3237 S 16th St
Milwaukee, WI 53215
Phone (414) 647-5000

1020 N 12th St
Milwaukee, WI 53233
Phone (414) 219-3056

5000 W Chambers St
Milwaukee, WI 53210
Phone (414) 447-2089

13250 Washington Ave
Mount Pleasant, WI 53177
Phone (262) 799-8330

3801 Spring St
Mount Pleasant, WI 53405
Phone (262) 636-4011

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

13111 N Port Washington Rd
Thiensville, WI 53097
Phone (262) 243-7300

10625 W North Ave
Ste 101B
Wauwatosa, WI 53226
Phone (414) 727-9183

201 N Mayfair Rd
Wauwatosa, WI 53226
Phone (414) 259-7200

Interoperability endpoints

  • Direct secure messaging: mrynkiewicz306839@direct.myadvocateaurora.org

Organizations & group practices 4

Organizations this provider is connected to: Medicare benefit reassignments (the organization bills Medicare for this provider’s services), Care Compare group memberships and National Provider Directory roles.

Hospital & facility affiliations 2

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": "1651104000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1766966400000",
    "number": "1073258604",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "PO BOX 735044",
            "city": "CHICAGO",
            "state": "IL",
            "postal_code": "606735044",
            "telephone_number": "800-326-2250"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "13250 WASHINGTON AVE",
            "city": "MOUNT PLEASANT",
            "state": "WI",
            "postal_code": "531771516",
            "telephone_number": "262-799-8700"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "10625 W North Ave Ste 101B",
            "address_purpose": "LOCATION",
            "city": "Wauwatosa",
            "state": "WI",
            "postal_code": "532262315",
            "country_code": "US",
            "telephone_number": "414-877-5350",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "RYNKIEWICZ",
        "first_name": "MARGARET",
        "middle_name": "ANN",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2022-04-28",
        "last_updated": "2025-12-29",
        "certification_date": "2025-12-29",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "363A00000X",
            "taxonomy_group": "",
            "desc": "Physician Assistant",
            "state": "WI",
            "license": "5873-23",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "100219345",
            "state": "WI"
        }
    ],
    "endpoints": [
        {
            "endpointType": "FHIR",
            "endpointTypeDescription": "FHIR URL",
            "endpoint": "https://EpicFHIR.aurora.org/FHIR/MYAURORA/api/FHIR/DSTU2/",
            "affiliation": "N",
            "address_1": "13250 Washington Ave",
            "city": "Mount Pleasant",
            "state": "WI",
            "country_code": "US",
            "postal_code": "531771516",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "endpointType": "DIRECT",
            "endpointTypeDescription": "Direct Messaging Address",
            "endpoint": "mrynkiewicz306839@direct.myadvocateaurora.org",
            "affiliation": "N",
            "use": "DIRECT",
            "useDescription": "Direct",
            "address_1": "13250 Washington Ave",
            "city": "Mount Pleasant",
            "state": "WI",
            "country_code": "US",
            "postal_code": "531771516",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "other_names": []
}

Other providers in Mount Pleasant, WI

Sources for this page

Verify at the official NPI Registry.