Mackenzie Welsh
Pharmacist · Seattle, WA
Mackenzie Welsh is a pharmacist with a practice address in Seattle, Washington, and NPI 1255964938, issued on Feb 20, 2020. Check the license (Washington PH60953059, as entered in NPPES) with the Washington board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Mackenzie Welsh
- Primary taxonomy
- Pharmacist 183500000X
- License number
- PH60953059 WA
Self-reported in NPPES; status is on the state search - Practice location
- 1959 NE Pacific St, Seattle, WA 98195
- Phone
- (319) 899-1678
- Enumerated
- Feb 20, 2020
- Record last updated
- Feb 20, 2020 (not updated in 6 years: call before relying on the address or phone)
- Entity
- Type 1 · individual
8 nearest pharmacist records → All 7,777 in Washington → Look up another NPI →
Also registered at 1959 NE Pacific St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Mackenzie Welsh in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Washington board licenses this profession
Search for license PH60953059Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
4.2 times the Medicare Part D claims of the average pharmacist in 2024
501 Medicare Part D claims for 84 beneficiaries, against an average of 119 among the 28,524 providers of this specialty who prescribed in Part D. Brand-name drugs were 16% of claims. 408 claims were for opioids.
Most prescribed
- Oxycodone Hcl172 claims
- Oxycontin46 claims
- Morphine Sulfate Er41 claims
- Methadone Hcl33 claims
- Hydromorphone Hcl32 claims
- Pregabalin22 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.
Mackenzie Welsh among 7,777 pharmacist records in Washington
Mackenzie Welsh is one of 7,777 pharmacist records with a practice address in Washington. 32% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2020, is newer than 79% of them.
- NPI issued2020 · 79% of these records are older, 17% newer
- In a Medicare fileYes · 32% of these records are
- In the CMS Doctors and Clinicians fileNo · under 1% of these records are
- Record last updated2020 · 75% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 183500000X and a Washington practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
1,476 pharmacist records list a practice address in Seattle
They are 1,476 of the 41,956 NPPES records with a practice address in Seattle, and 7,777 pharmacist records in Washington.
All 7,777 in Washington → Every provider in Seattle → Pharmacist nationwide →
The 8 pharmacist records with the nearest ZIP codes
- Deane Bell, R.PH.Seattle, WA 981951902981301
- Lynnette Bower, PHARMDSeattle, WA 981951861536898
- Connor Christy, PHARMDSeattle, WA 981951174610646
- Donald Downing, R.PH.Seattle, WA 981951235116021
- Jennifer Downing, PHARMDSeattle, WA 981951932243508
- Colleen Fisher, PHARMDSeattle, WA 981951275596868
- Emma Giden, PHARMDSeattle, WA 981951053400028
- Mia Hard, PHARM.D.Seattle, WA 981951932234689
Common questions
What is Mackenzie Welsh's NPI number?
Mackenzie Welsh's National Provider Identifier (NPI) is 1255964938, issued on Feb 20, 2020. An NPI identifies a provider in billing; it is not a license.
Where is Mackenzie Welsh located?
The NPPES record lists a practice address at 1959 NE Pacific St, Seattle, WA, 98195. Phone: (319) 899-1678. Providers update this record themselves, so call before visiting.
How can I verify Mackenzie Welsh's license?
NPPES lists Washington license number PH60953059, as entered by the provider. Search the Washington board that licenses this profession; the NPPES record confirms identity only.
How much does Mackenzie Welsh prescribe under Medicare Part D?
In 2024, Mackenzie Welsh had 501 Medicare Part D claims for 84 beneficiaries; the average among pharmacist prescribers was 119. 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.