John Thomas Frederick, MD
Psychiatry Physician · Seattle, WA
John Thomas Frederick, MD is a psychiatry physician with a practice address in Seattle, Washington, and NPI 1790828911, issued on Feb 15, 2007. Check the license (Washington MD00036632, as entered in NPPES) on the Washington Medical Commission; the Medicare figures below come from public CMS files.
- Name
- John Thomas Frederick
- Credential
- MD
- Primary taxonomy
- Psychiatry Physician 2084P0800X
- License number
- MD00036632 WA
Self-reported in NPPES; status is on the state search - Practice location
- 1200 5TH Ave Ste 2010, Seattle, WA 98101
- Phone
- (206) 778-5584
- Enumerated
- Feb 15, 2007
- Record last updated
- Feb 20, 2018 (not updated in 8 years: call before relying on the address or phone)
- Medicaid ID
- 8286858 WA
- Entity
- Type 1 · individual
8 nearest psychiatry physician records → All 1,195 in Washington → Look up another NPI →
Verify John Thomas Frederick in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWashington Medical Commission
Search for license MD00036632Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
51% more Medicare Part D claims than the average psychiatry physician in 2024
1,507 Medicare Part D claims for 88 beneficiaries, against an average of 1,000 among the 35,054 providers of this specialty who prescribed in Part D. Brand-name drugs were 2% of claims.
Most prescribed
- Fluoxetine Hcl112 claims
- Clonazepam101 claims
- Bupropion Xl100 claims
- Lorazepam96 claims
- Lamotrigine93 claims
- Trazodone Hcl85 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.
John Thomas Frederick among 1,195 psychiatry physician records in Washington
John Thomas Frederick, 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 updated2018 · 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
- Karen Berlin, MDSeattle, WA 981011740346261
- Ann Branchaud, M.D.Seattle, WA 981011285681254
- Roy Clark, MDSeattle, WA 981011003965419
- Christpher Dattan, M.D.Seattle, WA 981011366593204
- Mark Everard, MDSeattle, WA 981011689620320
- Timothy Forslund, MDSeattle, WA 981011750471496
- Marty Hoiness, MDSeattle, WA 981011902817703
- David Kersey, M.D.Seattle, WA 981011932278348
Common questions
What is John Thomas Frederick, MD's NPI number?
John Thomas Frederick, MD's National Provider Identifier (NPI) is 1790828911, issued on Feb 15, 2007. An NPI identifies a provider in billing; it is not a license.
Where is John Thomas Frederick, MD located?
The NPPES record lists a practice address at 1200 5TH Ave Ste 2010, Seattle, WA, 98101. Phone: (206) 778-5584. Providers update this record themselves, so call before visiting.
How can I verify John Thomas Frederick, MD's license?
NPPES lists Washington license number MD00036632, 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 John Thomas Frederick, MD prescribe under Medicare Part D?
In 2024, John Thomas Frederick, MD had 1,507 Medicare Part D claims for 88 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.