Tatiana Sadak, ARNP

Primary specialty

Psychiatric/Mental Health Nurse PractitionerTaxonomy code 363LP0808X

License

AP60122579 Issued in WA

Practice address

7110 191St PL SW
Lynnwood, WA 98036-5069

Phone

(206) 459-1158

Fax

(888) 296-8140

NPI assigned

Nov 7, 2009

Sex

Female

Sole proprietor

Yes

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

Specialties & licenses 1

Addresses

Medicare fee-for-service enrollment

Enrolled in WA

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, 2008

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Telehealth

Offers telehealth services

Practice addresses (Care Compare)

Medicare enrollment (NPD)

Enrolled

Credentials

Nurse Practitioner

State licenses

Practice roles

Locations

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.

• BHC Fairfax Hospital Inc.

  dba Fairfax Physician Group

  • Psychiatry Physician
  • Kirkland, WA
  • NPI 1104959097
  Medicare reassignment NPD
• Psychiatric Wellness & Dementia Care,LLC

  • Clinic/Center
  • Lynnwood, WA
  • NPI 1912244377
  NPD (past) Authorized official

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

{
    "created_epoch": "1257552000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1769990400000",
    "number": "1235466517",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "7110 191ST PL SW",
            "city": "LYNNWOOD",
            "state": "WA",
            "postal_code": "980365069",
            "telephone_number": "206-459-1158",
            "fax_number": "888-296-8140"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "7110 191ST PL SW",
            "city": "LYNNWOOD",
            "state": "WA",
            "postal_code": "980365069",
            "telephone_number": "206-459-1158",
            "fax_number": "888-296-8140"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "SADAK",
        "first_name": "TATIANA",
        "credential": "ARNP",
        "sole_proprietor": "YES",
        "sex": "F",
        "enumeration_date": "2009-11-07",
        "last_updated": "2026-02-02",
        "certification_date": "2026-02-02",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "363LP0808X",
            "taxonomy_group": "",
            "desc": "Nurse Practitioner, Psychiatric/Mental Health",
            "state": "WA",
            "license": "AP60122579",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Ryan Potvin Acupuncture PLLC (Evergreen Acupuncture Clinic and Chinese Herbs)
• Sally Kay Rye-Gomes, MA, LPC
• Mia M Sa, LICSW
• Lara Saadeddine
• Jacqueline C Sabin
• Nai Win Saephanh
• Safeway Inc (Safeway Pharmacy #3523)
• Michael Sage, PA-C
• Fatou Sakho
• Claire Saladino, FNP-DNP

• Psychiatric/Mental Health Nurse Practitioner in Lynnwood, WA
• Providers in Lynnwood, WA by specialty
• Psychiatric/Mental Health Nurse Practitioner in Washington

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Feb 2, 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.