Guardian Pharmacy of Washington, LLC
NPI 1790653798 · Long Term Care Pharmacy · Mountlake Terrace, WA
Enrolled with Medicare as Part B Supplier - Pharmacy · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Guardian Pharmacy of Washington, LLC is a Long Term Care Pharmacy organization in Mountlake Terrace, WA (NPI 1790653798).
Provider details
- NPI number
- 1790653798
- Entity type
- Organization
- Primary specialty
- Long Term Care PharmacySuppliers
- Organization subpart
- No
- Authorized official
- Stephen Boulanger, President(425) 673-5200
Specialties & taxonomies
Suppliers
- Compounding Pharmacy3336C0004X
Suppliers
- Community/Retail Pharmacy3336C0003X
Suppliers
Suppliers
- Pharmacy333600000X
Suppliers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
Under 1 yr in 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.
Practice location
Mailing address
Other names (DBA / former)
- Doing business as
- Mercury Pharmacy Services
Registry dates
- Enumerated
- 2025-10-29
- Last updated
- 2026-01-30
- Certified
- 2026-01-30
Frequently asked questions
- What is Guardian Pharmacy of Washington, LLC's NPI number?
- Guardian Pharmacy of Washington, LLC's National Provider Identifier (NPI) is 1790653798, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is Guardian Pharmacy of Washington, LLC?
- Guardian Pharmacy of Washington, LLC is classified in the NPPES registry as Long Term Care Pharmacy (Suppliers).
- Where is Guardian Pharmacy of Washington, LLC located?
- Guardian Pharmacy of Washington, LLC's practice location on file with NPPES is 22316 70th Ave W Ste E, Mountlake Terrace, WA 98043-2184.
- What is Guardian Pharmacy of Washington, LLC's phone number?
- The practice phone number listed in the NPPES registry for Guardian Pharmacy of Washington, LLC is (425) 673-5200.
- Does Guardian Pharmacy of Washington, LLC accept Medicare?
- Guardian Pharmacy of Washington, LLC is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Who is the authorized official for Guardian Pharmacy of Washington, LLC?
- The authorized official listed on Guardian Pharmacy of Washington, LLC's NPPES record is Stephen Boulanger, President. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is Guardian Pharmacy of Washington, LLC's NPI active?
- Yes — Guardian Pharmacy of Washington, LLC's NPI (1790653798) is active in the NPPES registry as of the last update on 2026-01-30.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.