Kirsten Hansen Day, MD
NPI 1861856585 · Family Medicine Physician · Federal Way, WA
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Kirsten Hansen Day, MD is a Family Medicine Physician provider in Federal Way, WA (NPI 1861856585).
Provider details
- NPI number
- 1861856585
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- MD60852496 (WA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
10 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 · 42 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 102 | 28 |
| Lisinopril | 77 | 16 |
| Amlodipine Besylate | 52 | 16 |
| Levothyroxine Sodium | 51 | 11 |
| Metformin Hcl | 47 | 13 |
| Gabapentin | 44 | — |
| Fluticasone Propionate | 39 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2016-04-08
- Last updated
- 2024-12-30
- Certified
- 2024-12-30
Frequently asked questions
- What is Kirsten Hansen Day's NPI number?
- Kirsten Hansen Day's National Provider Identifier (NPI) is 1861856585, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Kirsten Hansen Day's specialty?
- Kirsten Hansen Day is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Kirsten Hansen Day located?
- Kirsten Hansen Day's practice location on file with NPPES is 33431 13th Pl S, Federal Way, WA 98003-6357.
- What is Kirsten Hansen Day's phone number?
- The practice phone number listed in the NPPES registry for Kirsten Hansen Day is (253) 874-7634.
- Does Kirsten Hansen Day accept Medicare?
- Kirsten Hansen Day is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Kirsten Hansen Day's NPI active?
- Yes — Kirsten Hansen Day's NPI (1861856585) is active in the NPPES registry as of the last update on 2024-12-30.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.