Peter P. Roy-Byrne, MD
Psychiatry Physician · Seattle, WA
Peter P. Roy-Byrne, MD is a psychiatry physician with a practice address in Seattle, Washington, and NPI 1225171457, issued on Feb 15, 2007. Check the license (Washington MD00023838, as entered in NPPES) on the Washington Medical Commission; the Medicare figures below come from public CMS files.
- Name
- Peter P. Roy-Byrne
- Credential
- MD
- Primary taxonomy
- Psychiatry Physician 2084P0800X
- License number
- MD00023838 WA
Self-reported in NPPES; status is on the state search - Practice location
- 325 9TH Ave, Seattle, WA 98104
- Phone
- (206) 341-4200
- Enumerated
- Feb 15, 2007
- Record last updated
- Oct 25, 2007 (not updated in 19 years: call before relying on the address or phone)
- Medicaid ID
- 8105231 WA
- Entity
- Type 1 · individual
8 nearest psychiatry physician records → All 1,195 in Washington → Look up another NPI →
Also registered at 325 9TH Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Peter P. Roy-Byrne in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWashington Medical Commission
Search for license MD00023838Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
64% fewer Medicare Part D claims than the average psychiatry physician in 2024
356 Medicare Part D claims for 25 beneficiaries, against an average of 1,000 among the 35,054 providers of this specialty who prescribed in Part D.
Most prescribed
- Lamotrigine57 claims
- Fluoxetine Hcl38 claims
- Trazodone Hcl23 claims
- Divalproex Sodium22 claims
- Olanzapine22 claims
- Carbamazepine Er18 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.
Industry payments in 2024: $13.60
1 payment: food and beverage; the largest payer was Lilly USA, LLC. The 13,693 providers of this specialty with any payment received $4,954.93 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Peter P. Roy-Byrne among 1,195 psychiatry physician records in Washington
Peter P. Roy-Byrne, MD 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 2007, is newer than 43% of them.
- NPI issued2007 · 43% of these records are older, 40% newer
- In a Medicare fileYes · 61% of these records are
- In the CMS Doctors and Clinicians fileNo · 39% of these records are
- Record last updated2007 · 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).
485 psychiatry physician records list a practice address in Seattle
They are 485 of the 41,956 NPPES records with a practice address in Seattle, and 1,195 psychiatry physician records in Washington.
All 1,195 in Washington → Every provider in Seattle → Psychiatry Physician nationwide →
The 8 psychiatry physician records with the nearest ZIP codes
- Neeru Bakshi, MDSeattle, WA 981041114018991
- Janet Berg, MDSeattle, WA 981041306804885
- Tawnya Christiansen, M.D.Seattle, WA 981041376556894
- Carmen Croicu, MDSeattle, WA 981041518993856
- Dorcas Dobie, M.D.Seattle, WA 981041437258415
- Sharon Farmer, MDSeattle, WA 981041144265125
- Shyam Gupta, MDSeattle, WA 981041205818598
- John Hamm, MDSeattle, WA 981041871565168
Common questions
What is Peter P. Roy-Byrne, MD's NPI number?
Peter P. Roy-Byrne, MD's National Provider Identifier (NPI) is 1225171457, issued on Feb 15, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Peter P. Roy-Byrne, MD located?
The NPPES record lists a practice address at 325 9TH Ave, Seattle, WA, 98104. Phone: (206) 341-4200. Providers update this record themselves, so call before visiting.
How can I verify Peter P. Roy-Byrne, MD's license?
NPPES lists Washington license number MD00023838, 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 Peter P. Roy-Byrne, MD prescribe under Medicare Part D?
In 2024, Peter P. Roy-Byrne, MD had 356 Medicare Part D claims for 25 beneficiaries; the average among psychiatry physician prescribers was 1,000. Part D covers Medicare prescriptions only.
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.