Physician Profile
Unclaimed ProfileAbout MATHIASEN
Patrick Leroy Mathiasen, MD is a healthcare provider in Bellevue, WA specialising in psychiatry. Patrick trained at University of Minnesota, Duluth School of Medicine, graduating in 1985.
Summarised automatically from public NPI registry and CMS Medicare data. Not written or reviewed by this provider. Claim this profile to replace it.
Education & Training
Areas of Expertise
Common questions
What kind of doctor is Dr. Mathiasen?
Dr. Mathiasen is a psychiatry in Bellevue, WA. This is the primary taxonomy recorded against the NPI in the federal registry, listed there as “PSYCHIATRY”.
NPI registry
What is Dr. Mathiasen's address?
Dr. Mathiasen is listed at 1035 116TH AVE NE, Bellevue, WA 98004. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How can I make an appointment with Dr. Mathiasen?
The number on file is (206) 722-0594. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is the NPI for Dr. Mathiasen?
Dr. Mathiasen's National Provider Identifier is 1316962145. It is issued by the Centers for Medicare & Medicaid Services and is unique and permanent — it does not change if they move practice.
NPI registry
Where did Dr. Mathiasen train?
Dr. Mathiasen attended University of Minnesota, Duluth School of Medicine, graduating in 1985. This comes from the CMS National Downloadable File.
CMS public data
How much experience does Dr. Mathiasen have?
Dr. Mathiasen has 41 years experience. Calculated from a graduation year of 1985, reported in the CMS National Downloadable File.
CMS public data
What procedures does Dr. Mathiasen perform?
According to Medicare billing data, Dr. Mathiasen provides treatments such as psychiatric diagnostic evaluation with medical services, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Is Dr. Mathiasen's profile verified?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Mathiasen. If this is you, claiming it is free.
Guide.md
Licensing & Certification
Source: NPPES NPI Registry
Contact Information
- (206) 722-0594
- Email not available
Practice Locations
1035 116TH AVE NE
Bellevue, WA 98004
Procedures Most Often Billed to Medicare
749 services · 113 patients · 3 distinct codes
| Procedure | Type | Code | Services |
|---|---|---|---|
| Psychiatric diagnostic evaluation with medical services | Treatment | 90792 |
27 |
| Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | Office visit | 99232 |
694 |
| Hospital discharge day management, more than 30 minutes | Office visit | 99239 |
28 |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Related providers
Connections drawn from the registry and from what providers have told us. A link here is not a referral or an endorsement.
Other psychiatry specialists at this location 2
Same specialty, same street address — most likely the same department or group.
Also at this address 4
Providers at the same street address. Each files their own registry entry, so a shared practice often appears under several different names.
Other psychiatry specialists in Bellevue 8
Same specialty, same city.
More connections — 11 related providers in 3 groups
Trained at University of Minnesota, Duluth School of Medicine 2
Other providers in the same specialty who trained at the same institution.
Class of 1985 at University of Minnesota, Duluth School of Medicine 1
Providers who graduated from the same medical school in the same year.
Also performs Psychiatric diagnostic evaluation with medical services 8
Providers in WA who bill this service to Medicare most often.
Provider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.