Individual provider Active NPI

Mark A Girzadas, MD

  • Cardiovascular Disease Physician
  • Milwaukee, WI
National Provider Identifier
1992842272
Registry record updated Jul 7, 2025
On this page

Key facts

NPPES NPI Registry
Primary specialty
Cardiovascular Disease PhysicianTaxonomy code 207RC0000X
License
54058020 Issued in WI
Practice address
960 N 12TH St
Milwaukee, WI 53233-1306
Phone
(414) 219-7434
Fax
(414) 219-6494
NPI assigned
Jan 30, 2007
Sex
Male
Sole proprietor
Yes

NPPES NPI Registry

Updated by the provider on Jul 7, 2025

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

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Cardiovascular Disease Physician 207RC0000X 54058020 WI Primary

Addresses

Primary practice location

960 N 12TH St
Milwaukee, WI 53233-1306

Mailing address

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

Other identifiers 1

IdentifierTypeStateIssuer
100010530MedicaidWI

Electronic endpoints 2

TypeEndpointUseAffiliation
Direct Messaging Address mgirzadas20754@direct.myadvocateaurora.org Direct
FHIR URL https://EpicFHIR.aurora.org/FHIR/MYAURORA/api/FHIR/DSTU2/

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: Yes
Green means eligible to order or refer.

Enrollment records 1

Enrollment IDStateProvider typePAC IDDetails
I20100921000981 WI Practitioner - Cardiovascular Disease (Cardiology) 6103941687 Reassigns benefits to 3 organizations

Care Compare profile

Medicare Care Compare
Specialty
Cardiovascular Disease (Cardiology)
Education
Other, 2004
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices
Aurora Medical Group, Inc.Group PAC ID 6709794258, 3,764 clinicians

Practice addresses (Care Compare)

2424 S 90TH St
Suite 406
West Allis, WI 53227-2455
Phone (414) 281-4466

Hospital & facility affiliations

  • Aurora St Lukes Medical Center Hospital, Milwaukee, WI, CCN 520138
  • West Allis Memorial Hospital Hospital, West Allis, WI, CCN 520139
  • Aurora Medical Center Hospital, Grafton, WI, CCN 520207

National Provider Directory

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

State licenses

LicenseStateTypeSpecialty
54058020WIMDCardiovascular Disease Physician

Practice roles

OrganizationSpecialtyStatusNew patients
Aurora Advanced Healthcare, Inc. CurrentSince Jan 1, 2021 Accepting new patients
Aurora Medical Group, Inc. CurrentSince Aug 1, 2010 Accepting new patients
Aurora Medical Group, Inc. CurrentSince Aug 1, 2010 Accepting new patients
Lakeshore Medical Clinic, LLC CurrentSince Jan 1, 2021 Accepting new patients
Aurora Advanced Healthcare Inc CurrentSince Jan 1, 2021 Accepting new patients

Locations

7080 N Port Washington Rd
Glendale, WI 53217
Phone (414) 228-4940

3003 W Good Hope Rd
Glendale, WI 53209
Phone (414) 352-3100

12203 N Corporate Pkwy
Mequon, WI 53092
Phone (262) 387-8200

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

3301 W Forest Home Ave
Milwaukee, WI 53215
Phone (414) 389-2233

960 N 12th St
Milwaukee, WI 53233
Phone (414) 219-6093

S74W16775 Janesville Rd
Muskego, WI 53150
Phone (414) 422-4747

2000 E Layton Ave
St Francis, WI 53235
Phone (414) 744-7880

915 Summit Ave
Summit, WI 53066
Phone (262) 569-2300

8901 W Lincoln Ave
West Allis, WI 53227
Phone (414) 328-6000

2424 S 90th St
West Allis, WI 53227
Phone (414) 321-2255

2424 S 90th St
Ste 406
West Allis, WI 53227
Phone (414) 328-8840

Interoperability endpoints

  • Direct secure messaging: mgirzadas20754@direct.myadvocateaurora.org

Organizations & group practices 5

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 5

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": "1170115200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1751846400000",
    "number": "1992842272",
    "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": "960 N 12TH ST",
            "city": "MILWAUKEE",
            "state": "WI",
            "postal_code": "532331306",
            "telephone_number": "414-219-7434",
            "fax_number": "414-219-6494"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "GIRZADAS",
        "first_name": "MARK",
        "middle_name": "A",
        "name_prefix": "Dr.",
        "credential": "MD",
        "sole_proprietor": "YES",
        "sex": "M",
        "enumeration_date": "2007-01-30",
        "last_updated": "2025-07-07",
        "certification_date": "2025-07-07",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207RC0000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Cardiovascular Disease",
            "state": "WI",
            "license": "54058020",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "100010530",
            "state": "WI"
        }
    ],
    "endpoints": [
        {
            "endpointType": "DIRECT",
            "endpointTypeDescription": "Direct Messaging Address",
            "endpoint": "mgirzadas20754@direct.myadvocateaurora.org",
            "affiliation": "N",
            "use": "DIRECT",
            "useDescription": "Direct",
            "address_1": "2424 S 90th St",
            "city": "Milwaukee",
            "state": "WI",
            "country_code": "US",
            "postal_code": "532272455",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "endpointType": "FHIR",
            "endpointTypeDescription": "FHIR URL",
            "endpoint": "https://EpicFHIR.aurora.org/FHIR/MYAURORA/api/FHIR/DSTU2/",
            "affiliation": "N",
            "address_1": "2424 S 90th St",
            "city": "Milwaukee",
            "state": "WI",
            "country_code": "US",
            "postal_code": "532272455",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "other_names": []
}

Other providers in Milwaukee, WI

Sources for this page

Verify at the official NPI Registry.