Elizabeth Mack, RN, ARNP-C
NPI 1881143758 · Nurse Practitioner · Seattle, WA
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Elizabeth Mack, RN, ARNP-C is a Nurse Practitioner provider in Seattle, WA (NPI 1881143758).
Provider details
- NPI number
- 1881143758
- Entity type
- Individual
- Primary specialty
- Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- RN, ARNP-C
- Sex
- Female
- Sole proprietor
- No
- License
- RN60562783 (WA)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Nursing Service Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure33% of score
9 yrs in NPPES registry
- Profile completeness33% of score
100% of core fields populated
- Practice footprint20% of score
2 documented practice locations
- Open Payments transparency13% of score
Has Open Payments disclosures (2024)
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 · 57 distinct drugs on file.
| Drug | Part D claims (2024) |
|---|---|
| Tamsulosin Hcl | 109 |
| Atorvastatin Calcium | 81 |
| Olanzapine | 73 |
| Famotidine | 71 |
| Dolutegravir Sodiumbrand: Tivicay | 60 |
| Losartan Potassium | 57 |
| Finasteride | 54 |
| Citalopram Hydrobromidebrand: Citalopram Hbr | 51 |
| Gabapentin | 47 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$25 across 1 record (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Additional practice locations (1)
- 450 Alaskan Way S Ste 200Seattle, WA 98104-2785Phone: (888) 731-8994
Registry dates
- Enumerated
- 2016-10-03
- Last updated
- 2025-12-18
- Certified
- 2025-12-18
Frequently asked questions
- What is Elizabeth Mack's NPI number?
- Elizabeth Mack's National Provider Identifier (NPI) is 1881143758, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Elizabeth Mack's specialty?
- Elizabeth Mack is listed in the NPPES registry with a primary specialty of Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Elizabeth Mack located?
- Elizabeth Mack's practice location on file with NPPES is 3410 Claremont Ave S, Seattle, WA 98144-6815.
- What is Elizabeth Mack's phone number?
- The practice phone number listed in the NPPES registry for Elizabeth Mack is (206) 725-0747.
- Does Elizabeth Mack accept Medicare?
- Elizabeth Mack is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Elizabeth Mack's NPI active?
- Yes — Elizabeth Mack's NPI (1881143758) is active in the NPPES registry as of the last update on 2025-12-18.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.