William Francis Pierson, M.D.
Psychiatry Physician · Bellevue, WA
William Francis Pierson, M.D. is a psychiatry physician with a practice address in Bellevue, Washington, and NPI 1528357001, issued on Apr 5, 2011. Check the license (Washington MD60554339, as entered in NPPES) on the Washington Medical Commission; the Medicare figures below come from public CMS files.
- Name
- William Francis Pierson
- Credential
- M.D.
- Primary taxonomy
- Psychiatry Physician 2084P0800X
- License number
- MD60554339 WA
Self-reported in NPPES; status is on the state search - Practice location
- 1750 112TH Ave NE, Bellevue, WA 98004
- Phone
- (425) 688-5460
- Enumerated
- Apr 5, 2011
- Record last updated
- Jun 28, 2016 (not updated in 10 years: call before relying on the address or phone)
- Fax
- (425) 739-4667
- Medicare enrollment
- Enrolled (PECOS I20150812008767); accepts Medicare assignment
- Medical or professional school
- State University Of New York At Buffalo School Of Medicine, 2011
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest psychiatry physician records → All 1,195 in Washington → Look up another NPI →
Also registered at 1750 112TH Ave NE
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Kate Casey, LMHCMental Health Counselor1932531654
- Neil Chasan, P.T., M.M.T.Physical Therapist1649232588
- Andrew Cole, M.D.Physical Medicine & Rehabilitation Physician1730135484
Verify William Francis Pierson in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWashington Medical Commission
Search for license MD60554339Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
81% more Medicare Part D claims than the average psychiatry physician in 2024
1,808 Medicare Part D claims for 167 beneficiaries, against an average of 1,000 among the 35,054 providers of this specialty who prescribed in Part D. Brand-name drugs were 7% of claims.
Most prescribed
- Lamotrigine116 claims
- Fluoxetine Hcl103 claims
- Olanzapine87 claims
- Trazodone Hcl84 claims
- Quetiapine Fumarate81 claims
- Clonazepam76 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
The practice group's MIPS final score for 2023 (Medicare payment program): 79.2 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Bills Medicare through 2 group practices
- King County Public Hospital District NO 2Kirkland, WA
- Overlake Medical Clinics LLCBellevue, WA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
William Francis Pierson among 1,195 psychiatry physician records in Washington
William Francis Pierson, M.D. is one of 1,195 psychiatry physician records with a practice address in Washington. 61% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2011, is newer than 70% of them.
- NPI issued2011 · 70% of these records are older, 28% newer
- In a Medicare fileYes · 61% of these records are
- In the CMS Doctors and Clinicians fileYes · 39% of these records are
- Graduated2011 · median 2007 among the 462 with a school on file
- Record last updated2016 · 63% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2084P0800X and a Washington practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Psychiatry Physician providers in Washington
There are 1,195 psychiatry physician records in Washington.
All 1,195 in Washington → Every provider in Bellevue → Psychiatry Physician nationwide →
The 8 psychiatry physician records with the nearest ZIP codes
- Stanley Abramski, MDBellevue, WA 980041245255181
- Santosh Agnani, MDBellevue, WA 980041134178882
- Christina Agustin, MDBellevue, WA 980041801823810
- Kristin Bernhart, MDBellevue, WA 980041881707966
- Gretchen Carlson, MDBellevue, WA 980041942319785
- Saul Helfing, MDBellevue, WA 980041841215787
- Kelan Koenig, MDBellevue, WA 980041689699035
- Patrick Mathiasen, MDBellevue, WA 980041316962145
Common questions
What is William Francis Pierson, M.D.'s NPI number?
William Francis Pierson, M.D.'s National Provider Identifier (NPI) is 1528357001, issued on Apr 5, 2011. An NPI identifies a provider in billing; it is not a license.
Where is William Francis Pierson, M.D. located?
The NPPES record lists a practice address at 1750 112TH Ave NE, Bellevue, WA, 98004. Phone: (425) 688-5460. Providers update this record themselves, so call before visiting.
How can I verify William Francis Pierson, M.D.'s license?
NPPES lists Washington license number MD60554339, as entered by the provider. Search the Washington Medical Commission at https://wahelms.my.site.com/s/license-search. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does William Francis Pierson, M.D. prescribe under Medicare Part D?
In 2024, William Francis Pierson, M.D. had 1,808 Medicare Part D claims for 167 beneficiaries; the average among psychiatry physician prescribers was 1,000. Part D covers Medicare prescriptions only.
What is William Francis Pierson, M.D.'s MIPS final score?
The 2023 MIPS final score is 79.2 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.