Lia Grantz
NPI 1154149474 · Family Nurse Practitioner · Seattle, WA
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Lia Grantz is a Family Nurse Practitioner provider in Seattle, WA (NPI 1154149474).
Provider details
- NPI number
- 1154149474
- Entity type
- Individual
- Primary specialty
- Family Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Sex
- Female
- Sole proprietor
- Yes
- License
- AP70053934 (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
1 yr 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
- 2024-09-26
- Last updated
- 2025-10-14
- Certified
- 2025-10-14
Frequently asked questions
- What is Lia Grantz's NPI number?
- Lia Grantz's National Provider Identifier (NPI) is 1154149474, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Lia Grantz's specialty?
- Lia Grantz is listed in the NPPES registry with a primary specialty of Family Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Lia Grantz located?
- Lia Grantz's practice location on file with NPPES is 4800 Sand Point Way Ne, Seattle, WA 98105-3901.
- What is Lia Grantz's phone number?
- The practice phone number listed in the NPPES registry for Lia Grantz is (206) 987-2000.
- Does Lia Grantz accept Medicare?
- Lia Grantz is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Lia Grantz's NPI active?
- Yes — Lia Grantz's NPI (1154149474) is active in the NPPES registry as of the last update on 2025-10-14.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.