Dr. Desey Tziortzis, LLC
NPI 1699241208 · Clinical Psychologist · Seattle, WA
Enrolled with Medicare as Part B Supplier - Clinic/Group Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Dr. Desey Tziortzis, LLC is a Clinical Psychologist organization in Seattle, WA (NPI 1699241208).
Provider details
- NPI number
- 1699241208
- Entity type
- Organization
- Primary specialty
- Clinical PsychologistBehavioral Health & Social Service Providers
- Organization subpart
- No
- Authorized official
- Desey Tziortzis, Owner/Licensed Psychologist(323) 459-8050
Specialties & taxonomies
Behavioral Health & Social Service Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
7 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
Practice location
Mailing address
Registry dates
- Enumerated
- 2018-10-22
- Last updated
- 2018-10-22
Frequently asked questions
- What is Dr. Desey Tziortzis, LLC's NPI number?
- Dr. Desey Tziortzis, LLC's National Provider Identifier (NPI) is 1699241208, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is Dr. Desey Tziortzis, LLC?
- Dr. Desey Tziortzis, LLC is classified in the NPPES registry as Clinical Psychologist (Behavioral Health & Social Service Providers).
- Where is Dr. Desey Tziortzis, LLC located?
- Dr. Desey Tziortzis, LLC's practice location on file with NPPES is 5306 Ballard Ave Nw Ste 321, Seattle, WA 98107-4366.
- What is Dr. Desey Tziortzis, LLC's phone number?
- The practice phone number listed in the NPPES registry for Dr. Desey Tziortzis, LLC is (323) 459-8050.
- Does Dr. Desey Tziortzis, LLC accept Medicare?
- Dr. Desey Tziortzis, LLC is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Who is the authorized official for Dr. Desey Tziortzis, LLC?
- The authorized official listed on Dr. Desey Tziortzis, LLC's NPPES record is Desey Tziortzis, Owner/Licensed Psychologist. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is Dr. Desey Tziortzis, LLC's NPI active?
- Yes — Dr. Desey Tziortzis, LLC's NPI (1699241208) is active in the NPPES registry as of the last update on 2018-10-22.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.