Toni Brassfield
Internal Medicine Physician · Seattle, WA
Toni Brassfield is an internal medicine physician with a practice address in Seattle, Washington, and NPI 1407420128, issued on May 17, 2021. Check the license (Washington OP61585443, as entered in NPPES) on the Washington Medical Commission; the Medicare figures below come from public CMS files.
- Name
- Toni Brassfield
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- OP61585443 WA
Self-reported in NPPES; status is on the state search - Practice location
- 1959 NE Pacific St # 356421, Seattle, WA 98195
- Phone
- (206) 543-3605
- Enumerated
- May 17, 2021
- Record last updated
- May 14, 2025
- Medicare enrollment
- Enrolled (PECOS I20250527001996); accepts Medicare assignment
- Medical or professional school
- Oklahoma State University College Of Osteopathic Medicine, 2022
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 3,079 in Washington → Look up another NPI →
Also registered at 1959 NE Pacific St # 356421
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Toni Brassfield in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWashington Medical Commission
Search for license OP61585443Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
88% fewer Medicare Part D claims than the average internal medicine physician in 2024
373 Medicare Part D claims for 66 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 14% of claims. 15 claims were for opioids.
Most prescribed
- Losartan Potassium23 claims
- Duloxetine Hcl17 claims
- Levothyroxine Sodium17 claims
- Lisinopril17 claims
- Alendronate Sodium16 claims
- Omeprazole15 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.
Bills Medicare through one group practice
- The Association OF University PhysiciansSeattle, WA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Toni Brassfield among 3,079 internal medicine physician records in Washington
Toni Brassfield is one of 3,079 internal medicine physician records with a practice address in Washington. 75% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2021, is newer than 91% of them.
- NPI issued2021 · 91% of these records are older, 7% newer
- In a Medicare fileYes · 75% of these records are
- In the CMS Doctors and Clinicians fileYes · 60% of these records are
- Graduated2022 · median 2006 among the 1,852 with a school on file
- Record last updated2025 · 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 207R00000X and a Washington practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
821 internal medicine physician records list a practice address in Seattle
They are 821 of the 41,956 NPPES records with a practice address in Seattle, and 3,079 internal medicine physician records in Washington.
All 3,079 in Washington → Every provider in Seattle → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
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- Annie Fang, MDSeattle, WA 981951679572168
- Rebecca Gettelman, MDSeattle, WA 981951750491262
- Brian Goldstein, MDSeattle, WA 981951902821275
- Daniel Leung, MDSeattle, WA 981951104936731
- Xi Li, M.D.Seattle, WA 981951891737631
Common questions
What is Toni Brassfield's NPI number?
Toni Brassfield's National Provider Identifier (NPI) is 1407420128, issued on May 17, 2021. An NPI identifies a provider in billing; it is not a license.
Where is Toni Brassfield located?
The NPPES record lists a practice address at 1959 NE Pacific St # 356421, Seattle, WA, 98195. Phone: (206) 543-3605. Providers update this record themselves, so call before visiting.
How can I verify Toni Brassfield's license?
NPPES lists Washington license number OP61585443, 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 Toni Brassfield prescribe under Medicare Part D?
In 2024, Toni Brassfield had 373 Medicare Part D claims for 66 beneficiaries; the average among internal medicine physician prescribers was 3,176. 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.