Active NPI
Margaret Ann Rynkiewicz
- Physician Assistant
- Mount Pleasant, WI
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Physician Assistant
- License
- 5873-23
- 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
Registry information is reported by the provider to CMS and is not verified. About this source
Specialties & licenses 1
| Specialty (taxonomy) | Code | License | State | Primary |
|---|---|---|---|---|
| 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
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 100219345 | Medicaid | WI |
Electronic endpoints 2
| Type | Endpoint | Use | Affiliation |
|---|---|---|---|
| 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
Enrollment records 1
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
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
- Ascension Columbia St Marys Hospital Milwaukee
National Provider Directory
National Provider Directory- Medicare enrollment (NPD)
- Enrolled
State licenses
| License | State | Type | Specialty |
|---|---|---|---|
| 5873-23 | WI | MD | Physician Assistant |
Practice roles
| Organization | Specialty | Status | New patients |
|---|---|---|---|
| EMS Observation, S.C. | Current | Accepting new patients | |
| Aurora Medical Group, Inc. | Current | Accepting new patients | |
| Aurora Medical Group, Inc. | Current | 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
- 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.
-
- Certified Registered Nurse Anesthetist
- Milwaukee, WI
- NPI 1427271378
-
- Emergency Medicine Physician
- Milwaukee, WI
- NPI 1568413524
-
- Durable Medical Equipment & Medical Supplies
- Oshkosh, WI
- NPI 1326858044
-
- Emergency Medicine Physician
- Franklin, WI
- NPI 1033858378
Hospital & facility affiliations 2
Hospitals and other facilities this clinician is affiliated with according to Medicare Care Compare.
-
- General Acute Care Hospital
- Kenosha, WI
- NPI 1225156888
-
- General Acute Care Hospital
- Milwaukee, WI
- NPI 1871656082
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
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Dec 29, 2025; 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.
- 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.