Marianna V Sieracki, PA-C

Primary specialty

Physician AssistantTaxonomy code 363A00000X

License

3334 Issued in WI

Practice address

430 E Division St
Fond Du Lac, WI 54935-4560

Phone

(920) 929-2300

NPI assigned

Jun 23, 2014

Sex

Female

Sole proprietor

No

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

Specialties & licenses 1

Addresses

Other names 1

• Miss Marianna Druzhinina Former name

Electronic endpoints 4

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

Specialty

Physician Assistant

Education

Other, 2014

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Thedacare, IncorporatedGroup PAC ID 1759294887, 654 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Thedacare Regional Medical Center - Appleton Inc Hospital, Appleton, WI, CCN 520160
• Thedacare Regional Med Ctr - Neenah Hospital, Neenah, WI, CCN 520045

Medicare enrollment (NPD)

Enrolled

Credentials

Physician Assistant

State licenses

Practice roles

Locations

Interoperability endpoints

• Direct secure messaging: msieracki350175@direct.myadvocateaurora.org

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.

• Thedacare, Incorporated

  • Family Medicine Physician
  • New London, WI
  • NPI 1376656959
  Medicare reassignment Care Compare group NPD
• Madison Emergency Physicians, SC

  • Emergency Medicine Physician
  • Madison, WI
  • NPI 1588646095
  Medicare reassignment
• Thedacare Medical Center - Berlin, Inc.

  • Critical Access Hospital
  • Berlin, WI
  • NPI 1760413777
  NPD (past)

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

• Thedacare Regional Medical Center - Appleton, Inc

  • General Acute Care Hospital
  • Appleton, WI
  • NPI 1740920909
  Care Compare affiliation
• Thedacare Regional Medical Center - Appleton, Inc.

  • General Acute Care Hospital
  • Appleton, WI
  • NPI 1497119218
  Care Compare affiliation
• Thedacare Regional Medical Center - Appleton, Inc.

  • General Acute Care Hospital
  • Appleton, WI
  • NPI 1689038408
  Care Compare affiliation
• Thedacare Regional Medical Center - Appleton, Inc.

  • General Acute Care Hospital
  • Appleton, WI
  • NPI 1831773589
  Care Compare affiliation
• Thedacare Regional Medical Center - Appleton, Inc.

  • General Acute Care Hospital
  • Appleton, WI
  • NPI 1902832306
  Care Compare affiliation
• Thedacare Regional Medical Center - Appleton, Inc.

  • General Acute Care Hospital
  • Fond Du Lac, WI
  • NPI 1912721002
  Care Compare affiliation
• Thedacare Regional Medical Center - Appleton, Inc.

  • General Acute Care Hospital
  • Oshkosh, WI
  • NPI 1912880329
  Care Compare affiliation
• Thedacare Regional Medical Center - Neenah, Inc.

  • General Acute Care Hospital
  • Neenah, WI
  • NPI 1023472842
  Care Compare affiliation
• Thedacare Regional Medical Center - Neenah, Inc.

  • General Acute Care Hospital
  • Menasha, WI
  • NPI 1720434806
  Care Compare affiliation
• Thedacare Regional Medical Center-Neenah, Inc.

  • General Acute Care Hospital
  • Neenah, WI
  • NPI 1518993880
  Care Compare affiliation
• Thedacare Regional Medical Center-Neenah, Inc.

  • General Acute Care Hospital
  • Oshkosh, WI
  • NPI 1861943409
  Care Compare affiliation
• Thedcare Regional Medical Center - Neenah, Inc.

  • General Acute Care Hospital
  • Oshkosh, WI
  • NPI 1679937494
  Care Compare affiliation

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

{
    "created_epoch": "1403481600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1781049600000",
    "number": "1659786374",
    "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": "920-830-5900",
            "fax_number": "920-830-5910"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "430 E DIVISION ST",
            "city": "FOND DU LAC",
            "state": "WI",
            "postal_code": "549354560",
            "telephone_number": "920-929-2300"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "2400 E Capitol Dr",
            "address_purpose": "LOCATION",
            "city": "Appleton",
            "state": "WI",
            "postal_code": "549118728",
            "country_code": "US",
            "telephone_number": "920-731-4101",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "250 W 6th Ave",
            "address_purpose": "LOCATION",
            "city": "Oshkosh",
            "state": "WI",
            "postal_code": "549025910",
            "country_code": "US",
            "telephone_number": "920-831-5050",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "SIERACKI",
        "first_name": "MARIANNA",
        "middle_name": "V",
        "name_prefix": "Mrs.",
        "credential": "PA-C",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2014-06-23",
        "last_updated": "2026-06-10",
        "certification_date": "2026-06-10",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "363A00000X",
            "taxonomy_group": "",
            "desc": "Physician Assistant",
            "state": "WI",
            "license": "3334",
            "primary": true
        }
    ],
    "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": "msieracki350175@direct.myadvocateaurora.org",
            "affiliation": "N",
            "use": "DIRECT",
            "useDescription": "Direct",
            "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": "msieracki331848@direct-ehr-ssmhc.com",
            "affiliation": "N",
            "use": "DIRECT",
            "useDescription": "Direct",
            "contentType": "OTHER",
            "contentTypeDescription": "Other",
            "contentOtherDescription": "msieracki331848@direct-ehr-ssmhc.com",
            "address_1": "430 E Division St",
            "city": "Fond Du Lac",
            "state": "WI",
            "country_code": "US",
            "postal_code": "549354560",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "endpointType": "FHIR",
            "endpointTypeDescription": "FHIR URL",
            "endpoint": "https://fhir.ssmhc.com/fhir/api/FHIR/DSTU2/",
            "affiliation": "N",
            "use": "OTHER",
            "useDescription": "Other",
            "useOtherDescription": "FHIR API",
            "contentType": "OTHER",
            "contentTypeDescription": "Other",
            "contentOtherDescription": "CCD",
            "address_1": "430 E Division St",
            "city": "Fond Du Lac",
            "state": "WI",
            "country_code": "US",
            "postal_code": "549354560",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "other_names": [
        {
            "first_name": "MARIANNA",
            "last_name": "DRUZHININA",
            "prefix": "MISS",
            "credential": "PA",
            "code": "1",
            "type": "Former Name"
        }
    ]
}

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• Physician Assistant in Fond Du Lac, WI
• Providers in Fond Du Lac, WI by specialty
• Physician Assistant in Wisconsin

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jun 10, 2026; 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.

Verify at the official NPI Registry.