Ruby Griswold
NPI 1346961471 · Physician Assistant · Seattle, WA
Enrolled with Medicare as Practitioner - Physician Assistant · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Ruby Griswold is a Physician Assistant provider in Seattle, WA (NPI 1346961471).
Provider details
- NPI number
- 1346961471
- Entity type
- Individual
- Primary specialty
- Physician AssistantPhysician Assistants & Advanced Practice Nursing Providers
- Sex
- Female
- Sole proprietor
- No
- License
- PA61489588 (WA)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
3 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.
Practice location
Mailing address
Registry dates
- Enumerated
- 2022-09-07
- Last updated
- 2023-10-23
- Certified
- 2023-10-23
Frequently asked questions
- What is Ruby Griswold's NPI number?
- Ruby Griswold's National Provider Identifier (NPI) is 1346961471, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Ruby Griswold's specialty?
- Ruby Griswold is listed in the NPPES registry with a primary specialty of Physician Assistant (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Ruby Griswold located?
- Ruby Griswold's practice location on file with NPPES is 4311 11th Ave Ne Ste 200, Seattle, WA 98105-6367.
- What is Ruby Griswold's phone number?
- The practice phone number listed in the NPPES registry for Ruby Griswold is (206) 616-4001.
- Does Ruby Griswold accept Medicare?
- Ruby Griswold is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Ruby Griswold's NPI active?
- Yes — Ruby Griswold's NPI (1346961471) is active in the NPPES registry as of the last update on 2023-10-23.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.