Tatyana P Siminak, APNP

Primary specialty

Psychiatric/Mental Health Nurse PractitionerTaxonomy code 363LP0808X

License

11724 Issued in WI

Practice address

11649 N Port Washington Rd Ste 221
Mequon, WI 53092-3461

Phone

(262) 912-1922

NPI assigned

Feb 6, 2022

Sex

Female

Sole proprietor

No

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

Specialties & licenses 2

Addresses

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

Nurse Practitioner

Education

Other, 2021

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Telehealth

Offers telehealth services

Group practices

Cornerstone Counseling Services IncGroup PAC ID 1456256023, 338 clinicians

Practice addresses (Care Compare)

Medicare enrollment (NPD)

Enrolled

State licenses

Practice roles

Locations

Interoperability endpoints

• Direct secure messaging: lifestancehealth.tatyanasiminak@149809.advancedmd-direct.com

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.

• Cornerstone Counseling Services, Inc

  dba LifeStance Health

  • Mental Health Counselor
  • Brookfield, WI
  • NPI 1033127246
  Medicare reassignment Care Compare group NPD

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

{
    "created_epoch": "1644105600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1779408000000",
    "number": "1366196685",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "4800 N SCOTTSDALE RD STE 2500",
            "city": "SCOTTSDALE",
            "state": "AZ",
            "postal_code": "852517630",
            "telephone_number": "262-912-1922"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "11649 N PORT WASHINGTON RD STE 221",
            "city": "MEQUON",
            "state": "WI",
            "postal_code": "530923461",
            "telephone_number": "262-912-1922"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "SIMINAK",
        "first_name": "TATYANA",
        "middle_name": "P",
        "credential": "APNP",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2022-02-06",
        "last_updated": "2026-05-22",
        "certification_date": "2026-05-22",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "363LP0808X",
            "taxonomy_group": "",
            "desc": "Nurse Practitioner, Psychiatric/Mental Health",
            "state": "WI",
            "license": "11724",
            "primary": true
        },
        {
            "code": "363L00000X",
            "taxonomy_group": "",
            "desc": "Nurse Practitioner",
            "state": "WI",
            "license": "11724",
            "primary": false
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Theresa Siegert, M.D.
• Kemery Jean Sigmund, ATC
• Tammy Silberman
• Shoshana Silver, RD
• Alexander William Silvia, D.M.D.
• Tyvonna M Simmons
• Bozena Simon, MD
• Kathryn Molitor Simon, PT
• Hamide Sinani, PHARMACIST
• Janice G. Singer, MSW, LCSW

• Psychiatric/Mental Health Nurse Practitioner in Mequon, WI
• Providers in Mequon, WI by specialty
• Psychiatric/Mental Health Nurse Practitioner in Wisconsin

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on May 22, 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.