Ryan Kartheiser
NPI 1225569734 · Family Medicine Physician · Seattle, WA
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Ryan Kartheiser is a Family Medicine Physician provider in Seattle, WA (NPI 1225569734).
Provider details
- NPI number
- 1225569734
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Sex
- Male
- Sole proprietor
- No
- License
- MD60958090 (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
9 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
2 documented practice locations
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 · 22 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 45 | 13 |
| Losartan Potassium | 43 | 11 |
| Rosuvastatin Calcium | 41 | — |
| Amlodipine Besylate | 32 | 12 |
| Lisinopril | 30 | — |
| Famotidine | 23 | — |
| Metoprolol Succinate | 22 |
Practice location
Mailing address
Additional practice locations (1)
- 32018 23rd Ave SFederal Way, WA 98003-6022Phone: (206) 520-5000
Registry dates
- Enumerated
- 2017-03-26
- Last updated
- 2024-12-09
- Certified
- 2024-12-09
Frequently asked questions
- What is Ryan Kartheiser's NPI number?
- Ryan Kartheiser's National Provider Identifier (NPI) is 1225569734, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Ryan Kartheiser's specialty?
- Ryan Kartheiser is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Ryan Kartheiser located?
- Ryan Kartheiser's practice location on file with NPPES is 1959 Ne Pacific St., Seattle, WA 98195-0001.
- What is Ryan Kartheiser's phone number?
- The practice phone number listed in the NPPES registry for Ryan Kartheiser is (206) 520-5000.
- Does Ryan Kartheiser accept Medicare?
- Ryan Kartheiser is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Ryan Kartheiser's NPI active?
- Yes — Ryan Kartheiser's NPI (1225569734) is active in the NPPES registry as of the last update on 2024-12-09.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.