Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

Tatiana Sadak, ARNP

Individual provider Psychiatric/Mental Health Nurse Practitioner · NPI 1235466517

Tatiana Sadak, ARNP is a Nurse Practitioner in Lynnwood, Washington. Qualified in 2008, 18 years ago. Practices as a sole proprietor, accepts Medicare assignment and offers telehealth. Licensed in Washington.

Years since qualifying
18
Licensed in
WA
In the registry since
2009
What do these letters mean?
ARNP — Advanced Registered Nurse Practitioner
The title some states use for an advanced practice nurse.

See every abbreviation used in this directory →

Claim this listing Report a problem Suggest an edit

Practice location Address checks out

7110 191st Pl SW
Lynnwood, WA 98036-5069
Phone: (206) 459-1158
Fax: (888) 296-8140
Show map & directions

Directions in Google Maps · Apple Maps · OpenStreetMap

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Psychiatric/Mental Health Nurse Practitioner (primary) Taxonomy 363LP0808X · Licence AP60122579 (WA)

Record details

NPI number1235466517
Entity typeIndividual (Type 1)
GenderFemale
Credentials ARNP
Sole proprietorYes
NPI enumeratedNovember 7, 2009
Last updated in NPPESFebruary 2, 2026
Certification dateFebruary 2, 2026

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyNURSE PRACTITIONER
Medical schoolOTHER
Graduated 2008 (18 years in practice)
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services

Other providers in Lynnwood