John Michael Horton, M.D.
Psychiatry Physician · Seattle, WA
John Michael Horton, M.D. is a psychiatry physician with a practice address in Seattle, Washington, and NPI 1174553036, issued on Jul 4, 2006. Check the license (Washington 00023531, as entered in NPPES) on the Washington Medical Commission; the Medicare figures below come from public CMS files.
- Name
- John Michael Horton
- Credential
- M.D.
- Primary taxonomy
- Psychiatry Physician 2084P0800X
- License number
- 00023531 WA
Self-reported in NPPES; status is on the state search - Practice location
- 4033 E Madison St, Seattle, WA 98112
- Phone
- (206) 328-8477
- Enumerated
- Jul 4, 2006
- Record last updated
- Sep 29, 2007 (not updated in 19 years: call before relying on the address or phone)
- Fax
- (206) 324-3276
- Medicaid ID
- 1017979 WA
- Medicare enrollment
- Enrolled (PECOS I20100217000320); accepts Medicare assignment
- Medical or professional school
- University Of Washington School Of Medicine, 1972
- 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 4033 E Madison St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify John Michael Horton in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWashington Medical Commission
Search for license 00023531Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
93% fewer Medicare Part D claims than the average psychiatry physician in 2024
71 Medicare Part D claims, against an average of 1,000 among the 35,054 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims.
Most prescribed
- Bupropion Xl15 claims
- Fluoxetine Hcl15 claims
- Buspirone Hcl11 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 Michael Horton among 1,195 psychiatry physician records in Washington
John Michael Horton, 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 2006, is newer than 5% of them.
- NPI issued2006 · 5% of these records are older, 57% newer
- In a Medicare fileYes · 61% of these records are
- In the CMS Doctors and Clinicians fileYes · 39% of these records are
- Graduated1972 · median 2007 among the 462 with a school on file
- 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
- Marco Baquero, MDSeattle, WA 981121730298902
- Rowin Cantrell, M.D.Seattle, WA 981121821042813
- Margaret Cashman, MD ACPSeattle, WA 981121366444325
- Tobias DangSeattle, WA 981121184704165
- Scot Gibson, MDSeattle, WA 981121639289143
- Kate Grossman, MDSeattle, WA 981121629159777
- Mark Hamblin, M.D.Seattle, WA 981121245335363
- Mark Hoerr, MDSeattle, WA 981121356378400
Common questions
What is John Michael Horton, M.D.'s NPI number?
John Michael Horton, M.D.'s National Provider Identifier (NPI) is 1174553036, issued on Jul 4, 2006. An NPI identifies a provider in billing; it is not a license.
Where is John Michael Horton, M.D. located?
The NPPES record lists a practice address at 4033 E Madison St, Seattle, WA, 98112. Phone: (206) 328-8477. Providers update this record themselves, so call before visiting.
How can I verify John Michael Horton, M.D.'s license?
NPPES lists Washington license number 00023531, 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 Michael Horton, M.D. prescribe under Medicare Part D?
In 2024, John Michael Horton, M.D. had 71 Medicare Part D claims; 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.