NPI registry status
Active
2026 NPPES data Psychiatry Physician NPI 1316962145 MD
Verify on CMS → Patrick Mathiasen, MD
Psychiatry Physician in Bellevue, Washington.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 54,383 in Psychiatry Physician, and covers specialty classification, practice address, and Medicare Part D prescribing data when reported. According to CMS, every field reflects the provider's official federal registration, see our methodology.
Federal data, no proprietary rating.
We show these CMS records as-is - no composite score, no star rating, no editorial opinion layered on top.
Prescribing volume
212
Medicare Part D claims · 34 beneficiaries · Psychiatry Physician avg: 1K
MIPS score
93.5/100
▲ 10 pts above national avg 83.5 · Exceptional
What the federal data shows
Patrick Mathiasen, MD reported a CMS MIPS final score of 93.5/100 - above the 83.5 national average - and filed 212 Medicare Part D claims in 2024.
- 93.5/100
- MIPS score · +10 vs avg
- 212
- Part D claims, 2024
- Likely
- board-certified (heuristic)
- ≥69th
- pct among measured MIPS (lower-bound band)
Every figure on this page comes straight from federal CMS records (NPPES, Medicare Part D, MIPS, Open Payments) - no proprietary rating or editorial opinion is applied.
Federal trust snapshot
What official records show about Patrick Mathiasen, MD
Federal records show an active NPI with both Medicare prescribing volume and a measured CMS quality score — objective registry data, not patient reviews.
- Verified
NPI registry status
Active listing in the CMS National Provider Identifier Registry (NPI 1316962145), first enumerated 07/13/2006.
Source: CMS NPPES
- Reported
Medicare Part D participation
Filed 212 Medicare Part D prescription claims in the 2023 CMS public use file — indicates active Medicare prescribing participation.
Source: CMS Part D Prescriber PUF
- Reported
CMS quality reporting (MIPS)
Reported a CMS MIPS final score of 93.5/100 in the Quality Payment Program — a federal quality measure, not a patient review.
Source: CMS Quality Payment Program
- Reported
Board certification signal
Heuristic suggests board-certified status based on ABMS-eligible specialty taxonomy plus active CMS participation signals — not a direct ABMS verification.
- Reported
Hospital affiliations
1 CMS Care Compare hospital affiliation on record — practice footprint from the Doctors and Clinicians file.
Source: CMS Care Compare
- State context
State board disciplinary context
Washington statewide board action statistics are published annually — these figures describe aggregate state activity, not Patrick Mathiasen, MD's individual license status. Verify directly with the state medical board.
Source: WMC annual report 2023
- Not in federal data
Individual sanction lookup
PlainDoctor does not publish per-provider disciplinary determinations. Confirm current license and any individual actions through the state medical board or FSMB verification service.
Source: State medical board / FSMB
This trust snapshot summarizes only what appears in federal CMS/NPPES public records. It is not a composite score, star rating, patient review, or clinical recommendation. PlainDoctor never fabricates reviews or AggregateRating schema.
CMS NPPES provider registry desk
NPI 1316962145 · Psychiatry Physician
NPI-10 · ENUM-LEGACY · TAX-MEGA · MIPS-ELITE · RX-LIGHT · BOOK-LIGHT · PHOTO-FINISH
- NPI-10 1316962145
- ENUM-LEGACY 2006
- TAX-MEGA 54K Psychiatry Physician
- MIPS-ELITE 93.5/100
- RX-LIGHT 212
- BOOK-LIGHT 1,153 in Washington
- PHOTO-FINISH Semhal Abbay, MD · ±0.1
MIPS final-score neighbourhood
Same-specialty nationwide peers by CMS final score, not geographic proximity
- Semhal Abbay, MD…
Semhal Abbay, MD
93.4 MIPS pts
- Maria Linden, M.…
Maria Linden, M.D.
93.4 MIPS pts
- Yogesh Pareek, M…
Yogesh Pareek, M.D.
93.4 MIPS pts
- Mathiasen · this…
Mathiasen · this provider
93.5 MIPS pts
What this shows Nearest measured MIPS peers for this NUCC specialty (2023 performance year).
Patrick Mathiasen, MD's MIPS score vs every measured U.S. clinician
CMS Merit-based Incentive Payment System (MIPS) final score, 2023, the federal quality measure. Clinicians whose score CMS assigned without scoring any category are excluded.
94 ≥ 69th percentile 69% of 454,083 measured providers are in lower value bands
Each bar is a band; taller bars hold more measured providers. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.
The percentile is a conservative whole-score-point band: it counts only measured clinicians in lower score bands. A CMS MIPS metric is not a recommendation or a clinical-quality rating by PlainDoctor. See methodology § corpus placement.
Source CMS Merit-based Incentive Payment System (MIPS) · 2023
Where Patrick Mathiasen, MD sits
This provider among psychiatry physician peers
Across the 4,541 psychiatry physician providers who report both Medicare Part D prescribing and a MIPS quality score, Patrick Mathiasen, MD writes more Part D claims than 40% of them and scores higher on MIPS quality than 71% - placing this provider in the lower-volume, high-quality quadrant. Volume reflects patient-panel size and specialty, not quality; the two axes are independent.
Each dot is one psychiatry physician peer from a representative sample of 60; the gold marker is Patrick Mathiasen, MD. Source: CMS Medicare Part D Prescriber data and the CMS Merit-based Incentive Payment System, 2023.
✓
Board certification likely (heuristic, not verified)
Patrick Mathiasen, MD practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + MIPS quality reporting + 1 hospital affiliation - signals consistent with board-certified status. For verified board certification, see CertificationMatters.org (the official ABMS public lookup).
What does the federal data show about Patrick Mathiasen, MD?
High performer (top quartile)Primary specialty
Psychiatry Physician
Medicare Part D claims
212 79% vs specialty avg
MIPS final score
93.5/100 10 pts vs avg
Specialty distribution in Washington
How Psychiatry Physician compares to other specialties among Washington providers
Medicare quality performance, MIPS
Patrick Mathiasen, MD's 2023 MIPS final score plotted against the Psychiatry Physician national average
- MIPS Final Score
- 93.5/100
- vs 83.5 national avg · 2023 performance year
How MIPS and board certification work
The Merit-based Incentive Payment System (MIPS) scores providers 0–100 across four performance categories: Quality, Cost, Promoting Interoperability, and Improvement Activities, weighted under 42 CFR §414.1380. Reporting is voluntary for many small practices, so absence of a MIPS score is not a quality signal.
Board certification through an ABMS or AOA member board signals voluntary post-licensure examination plus continuous Maintenance of Certification cycles. Verify any individual provider's status through certificationmatters.org (ABMS) or osteopathic.org (AOA).
Practice Address
Provider Details
| NPI | 1316962145 |
|---|---|
| Specialty | Psychiatry Physician |
| Credentials | MD |
| Gender | Male |
| NPI Issued | 07/13/2006 |
CMS Quality Score (MIPS)
Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.
93.4606
Final Score
Measured-score avg: 83.5
86.4242
Quality
Reporting: Group practice
Hospital and facility affiliations
Facilities where Patrick Mathiasen, MD bills Medicare from. Star ratings (1-5) are CMS Hospital Compare's "Hospital overall rating" - a composite of mortality, readmission, patient experience, safety, timely care, and efficient use of medical imaging measures. Source: CMS Care Compare.
Bhc Fairfax Hospital Inc
Everett, WA
Affiliations sourced from CMS Doctors and Clinicians National Downloadable File; hospital ratings from CMS Hospital General Information dataset (cross-referenced by facility name + state).
License & disciplinary context - Washington WMC 2023 annual report
Aggregate state board data only, NOT a determination of any individual provider's status. The figures below describe statewide disciplinary activity across all ~34K Washington medical licensees in 2023 - they are NOT specific to Patrick Mathiasen, MD. To verify Patrick Mathiasen, MD's current license status, search the WMC public license lookup directly, or check the Federation of State Medical Boards (FSMB) verification service.
88
Total board actions, Washington 2023
Across 85 cases
2.59
Actions per 1,000 licensees
Washington statewide rate
probation
Most common action type
31 cases
WMC publishes annual disciplinary statistics as part of public-record reporting under each state's Administrative Procedure Act. See the full breakdown by action type and year on the Washington disciplinary trends page. Cross-checked against FSMB U.S. Medical Regulatory Trends.
Medicare Part D Prescribing Data
CMS Medicare Part D prescriber-level data for calendar year 2024.
212
Total Claims
$9K
Total Drug Cost
34
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 212
- Total Day Supply
- 3,179
- Generic Drug Cost
- $4K
Patient Demographics
- Average Patient Age
- 43.0 years
- Avg HCC Risk Score
- 1.38
- Gender Split
- 41% female / 59% male
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2024. Based on Medicare Part D data only.
What Patrick Mathiasen, MD prescribes most
Top Medicare Part D drugs by claim count, 2024
- Trazodone Hcl
Trazodone Hcl
29 claims
- Benztropine Mesylate
Benztropine Mesylate
22 claims
- Divalproex Sodium
Divalproex Sodium
22 claims
- Risperidone
Risperidone
15 claims
| Drug | Claims |
|---|---|
| Trazodone Hcl | 29 |
| Benztropine Mesylate | 22 |
| Divalproex Sodium | 22 |
| Risperidone | 15 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Psychiatry Physician Overview
How Patrick Mathiasen, MD fits within the Psychiatry Physician landscape nationally.
54,383
Psychiatry Physician Providers in US
56
States with Psychiatry Physician
1,010
Avg Claims per Provider
Patrick Mathiasen, MD's 212 claims are below the specialty average of 1,010.
Nationwide Psychiatry Physician peers with similar MIPS or enrollment year
Two federal-record peer sets for Mathiasen, both outside Washington so the neighborhoods are not geographic containment.
Similar MIPS final score
Nearest same-specialty clinicians by CMS MIPS final score (93.5 here).
Same NPPES enumeration year (2006)
Same-specialty clinicians who entered the NPI registry in the same calendar year, outside this state.
Nearby Psychiatry Physician Providers in Washington
Other clinicians with the same primary specialty enrolled in Washington, drawn from the same CMS NPPES roster as Mathiasen.
One of 1,153 Psychiatry Physician providers enrolled in Washington, 5 are shown here.
Dr. Sharon Abegg
M.D.
Olympia, WA
Dr. Stanley Abramski
MD
Bellevue, WA
Dr. William Adams
MD
Kirkland, WA
Dr. Richard Adamson
M.D.
Seattle, WA
Dr. Richard Adler
M.D.
Seattle, WA
Compare Psychiatry Physician nationally: see state-by-state distribution →
Frequently Asked Questions
What is Patrick Mathiasen, MD's specialty? ▼
Patrick Mathiasen, MD specializes in Psychiatry Physician and practices in Bellevue, Washington. Credentials: MD.
How much does Patrick Mathiasen, MD prescribe under Medicare Part D? ▼
In 2024, Patrick Mathiasen, MD wrote 212 Medicare Part D claims totaling $9K in drug costs for 34 beneficiaries.
What is Patrick Mathiasen, MD's Medicare quality score? ▼
Patrick Mathiasen, MD has a CMS MIPS Final Score of 93.5/100 (Quality: 86.4). The average MIPS Final Score across the 454,083 clinicians with at least one published category score is 83.5; clinicians whose score CMS assigned without scoring any category are excluded from that average. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is Patrick Mathiasen, MD located? ▼
Patrick Mathiasen, MD is located at 1035 116TH AVE NE, Bellevue, WA, 98004. Phone: (206) 722-0594.
What is Patrick Mathiasen, MD's NPI number? ▼
Patrick Mathiasen, MD's National Provider Identifier (NPI) is 1316962145, issued on 07/13/2006.
How many Psychiatry Physician providers are there in the US? ▼
There are 54,383 Psychiatry Physician providers across 56 states in the US. The average Psychiatry Physician provider writes 1,010 Medicare Part D claims per year.
What drugs does Patrick Mathiasen, MD prescribe most often? ▼
Based on 2024 Medicare Part D data, Patrick Mathiasen, MD's most frequently prescribed drugs include Trazodone Hcl, Benztropine Mesylate, Divalproex Sodium. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Patrick Mathiasen, MD accept Medicare? ▼
Patrick Mathiasen, MD appears in CMS Medicare data with 212 Part D claims and 34 Medicare beneficiaries in 2024. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Patrick Mathiasen, MD's credentials? ▼
Patrick Mathiasen, MD's NPI is 1316962145 with credentials MD. You can verify this through the NPPES NPI Registry, check state medical board records, and confirm board certification through the ABMS or AOA.
Data Sources
View source datasets and methodology notes
- Provider Directory
- CMS National Plan and Provider Enumeration System (NPPES), download.cms.gov/nppes, updated monthly. Contains NPI, specialty, credentials, and practice location.
- Specialty Classification
- NUCC Health Care Provider Taxonomy (nucc.org), the industry standard for classifying provider specialties in Medicare and Medicaid billing.
- Prescribing Data
- CMS Medicare Part D Prescriber Public Use File (2024). Includes claims, drug costs, beneficiaries, and opioid prescribing rates.
- Quality Performance
- CMS Merit-based Incentive Payment System (MIPS) - 2023 performance year.
- Limitations
- Provider data is self-reported to CMS. Prescribing data reflects Medicare Part D only and does not include commercial insurance, Medicaid, or cash prescriptions. Claims below 11 beneficiaries are suppressed by CMS for privacy.
See our complete data methodology for details on how we collect and process government data.
Data as of August 2026 (NPPES) / 2024 (Medicare Part D). Source: Centers for Medicare & Medicaid Services (CMS).
Disclaimer: Data from CMS NPPES and Medicare Part D. PlainDoctor does not rate or rank providers. Provider information is self-reported and may not be current. Always verify information directly with the provider. About · Methodology
Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of August 2026.