OrganizationActive
Patrick Mathiasen MD
NPI 1063342590 · Psychiatry Physician · Bellevue, WA
Patrick Mathiasen MD is a Psychiatry Physician organization in Bellevue, WA (NPI 1063342590).
Provider details
- NPI number
- 1063342590
- Entity type
- Organization
- Primary specialty
- Psychiatry PhysicianAllopathic & Osteopathic Physicians
- Organization subpart
- No
- Authorized official
- Patrick Mathiasen, Owner(425) 628-3660
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
Established profile(52/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
Under 1 yr in 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
10203 Ne 29th Pl
Bellevue, WA 98004-1935
Phone: (425) 628-3660
Street-level locationGet directions
Mailing address
10203 Ne 29th Pl
Bellevue, WA 98004-1935
Registry dates
- Enumerated
- 2026-05-19
- Last updated
- 2026-05-19
- Certified
- 2026-05-19
Frequently asked questions
- What is Patrick Mathiasen MD's NPI number?
- Patrick Mathiasen MD's National Provider Identifier (NPI) is 1063342590, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is Patrick Mathiasen MD?
- Patrick Mathiasen MD is classified in the NPPES registry as Psychiatry Physician (Allopathic & Osteopathic Physicians).
- Where is Patrick Mathiasen MD located?
- Patrick Mathiasen MD's practice location on file with NPPES is 10203 Ne 29th Pl, Bellevue, WA 98004-1935.
- What is Patrick Mathiasen MD's phone number?
- The practice phone number listed in the NPPES registry for Patrick Mathiasen MD is (425) 628-3660.
- Who is the authorized official for Patrick Mathiasen MD?
- The authorized official listed on Patrick Mathiasen MD's NPPES record is Patrick Mathiasen, Owner. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is Patrick Mathiasen MD's NPI active?
- Yes — Patrick Mathiasen MD's NPI (1063342590) is active in the NPPES registry as of the last update on 2026-05-19.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.