Mackenzie Welsh
NPI 1255964938 · Pharmacist · Seattle, WA
Mackenzie Welsh is a Pharmacist provider in Seattle, WA (NPI 1255964938).
Provider details
- NPI number
- 1255964938
- Entity type
- Individual
- Primary specialty
- PharmacistPharmacy Service Providers
- Sex
- Female
- Sole proprietor
- No
- License
- PH60953059 (WA)
Specialties & taxonomies
Pharmacy Service Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
6 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 10 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Oxycodone Hcl | 172 | 48 |
| Oxycodone Hclbrand: Oxycontin | 46 | — |
| Morphine Sulfatebrand: Morphine Sulfate Er | 41 | 12 |
| Methadone Hcl | 33 | — |
| Hydromorphone Hcl | 32 | — |
| Pregabalin | 22 | 12 |
| Gabapentin |
Practice location
Mailing address
Registry dates
- Enumerated
- 2020-02-20
- Last updated
- 2020-02-20
- Certified
- 2020-02-20
Frequently asked questions
- What is Mackenzie Welsh's NPI number?
- Mackenzie Welsh's National Provider Identifier (NPI) is 1255964938, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mackenzie Welsh's specialty?
- Mackenzie Welsh is listed in the NPPES registry with a primary specialty of Pharmacist (Pharmacy Service Providers).
- Where is Mackenzie Welsh located?
- Mackenzie Welsh's practice location on file with NPPES is 1959 Ne Pacific St, Seattle, WA 98195-0001.
- What is Mackenzie Welsh's phone number?
- The practice phone number listed in the NPPES registry for Mackenzie Welsh is (319) 899-1678.
- Is Mackenzie Welsh's NPI active?
- Yes — Mackenzie Welsh's NPI (1255964938) is active in the NPPES registry as of the last update on 2020-02-20.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.