TATIANA SADAK ARNP
NPI 1235466517
Nurse Practitioner - Psychiatric/Mental Health in Lynnwood, WA

Q: What is Tatiana Sadak's NPI number?

The NPI number for Tatiana Sadak is 1235466517. It was assigned to this individual provider in the NPPES registry on November 7, 2009.

Q: What is Tatiana Sadak's specialty?

The primary specialty registered for this NPI is Nurse Practitioner, specializing in Psychiatric/Mental Health, with taxonomy code 363LP0808X.

Q: When was this NPI record last updated?

The NPPES record for Tatiana Sadak was last updated on February 2, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.

Active since November 07, 2009PECOS EnrolledAccepts Medicare Assignment

7110 191ST PL SW, LYNNWOOD, WA 98036(206) 459-1158(888) 296-8140 Get Directions Write a Review

NPPES record last updated: February 2, 2026. Verified against the NPPES registry weekly; last sync: August 09, 2026.

Record update history: Feb 2, 2026, Aug 17, 2018 (2 updates tracked since 2018).

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About Tatiana Sadak Arnp NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

TATIANA SADAK ARNP (NPI 1235466517) is an individual psychiatric/mental health provider in Lynnwood, Washington, licensed in Washington (AP60122579) and active in the NPI registry since November 2009. She is enrolled in Medicare PECOS and is a graduate of Other (2008).

NPPES Registry Identity

NPI1235466517

Entity TypeIndividualFemale

Primary Taxonomy363LP0808X

Provider Legal NameTATIANA SADAKCredential: ARNP

Location Address7110 191ST PL SWLynnwood, WA 98036-5069

Mailing Address7110 191st Pl SwLynnwood, WA 98036-5069 · (206) 459-1158 · Fax (888) 296-8140

Phone(206) 459-1158

Fax(888) 296-8140

Sole ProprietorYes

Medical School CMSOtherGraduated 2008

Enumeration DateNovember 7, 2009

Last NPPES UpdateFebruary 2, 20262 updates tracked since enumeration

NPPES CertifiedFebruary 2, 2026

✔ NPI 1235466517 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyNurse Practitioner · Psychiatric/Mental HealthPhysician Assistants & Advanced Practice Nursing Providers

Taxonomy Code363LP0808X

License✔ Licensed in WA · AP60122579

7110 191ST PL SW, Lynnwood, WA 98036

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Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Premera Blue Cross Blue Shield of Alaska.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Tatiana Sadak Arnp is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID7517094170

PECOS Enrollment IDI20100430000071

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 98036 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient

$88.29 typical visit price

range $57.27 – $172.80

Typical copayment $22.07 (range $14.31 – $43.20)

Most-billed visit code 99203

Established Patient

$100.78 typical visit price

range $18.56 – $141.11

Typical copayment $25.19 (range $4.64 – $35.27)

Most-billed visit code 99214

Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Tatiana Sadak's NPI number?

The NPI number for Tatiana Sadak is 1235466517. It was assigned to this individual provider in the NPPES registry on November 7, 2009.

Where is Tatiana Sadak located?

Tatiana Sadak practices at 7110 191st Pl SW, Lynnwood, WA 98036. The listed phone number is (206) 459-1158.

What is Tatiana Sadak's specialty?

The primary specialty registered for this NPI is Nurse Practitioner, specializing in Psychiatric/Mental Health, with taxonomy code 363LP0808X.

Is Tatiana Sadak enrolled in Medicare?

Yes. Tatiana Sadak is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

What insurance does Tatiana Sadak accept?

Health plans from Premera Blue Cross Blue Shield of Alaska list Tatiana Sadak as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for Tatiana Sadak was last updated on February 2, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.