Nathan Jansen, D.O.
NPI 1285049981 · Family Medicine Physician · Seattle, WA
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Nathan Jansen, D.O. is a Family Medicine Physician provider in Seattle, WA (NPI 1285049981).
Provider details
- NPI number
- 1285049981
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- D.O.
- Sex
- Male
- Sole proprietor
- No
- License
- OP60792760 (WA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
12 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
577 Medicare services, 2024 (ranked within specialty)
Medicare volume is ranked against active providers in the same specialty. 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 does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 233 | $144 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 90 | $101 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 65 | $150 |
| Osteopathic Manipulative Treatment, 1-2 Body Regions98925 | 59 | $35 |
| Visit Complexity Inherent to Evaluation and Management Associated With Medical Care Services That Serve As the Continuing Focal Point for All Needed Health Care Services And/Or With Medical Care Services That Are Part of Ongoing Care Related to a Patient'SG2211 | 35 | $18 |
| Admn Sarscov2 Vacc 1 Dose |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 83 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 472 | 135 |
| Lisinopril | 220 | 64 |
| Levothyroxine Sodium | 181 | 48 |
| Losartan Potassium | 160 | 48 |
| Amlodipine Besylate | 136 | 45 |
| Tamsulosin Hcl | 107 | 35 |
| Metformin Hcl |
Practice location
Mailing address
Registry dates
- Enumerated
- 2014-06-23
- Last updated
- 2021-04-19
- Certified
- 2021-04-19
Frequently asked questions
- What is Nathan Jansen's NPI number?
- Nathan Jansen's National Provider Identifier (NPI) is 1285049981, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Nathan Jansen's specialty?
- Nathan Jansen is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Nathan Jansen located?
- Nathan Jansen's practice location on file with NPPES is 10330 Meridian Ave N Ste 230, Seattle, WA 98133-9441.
- What is Nathan Jansen's phone number?
- The practice phone number listed in the NPPES registry for Nathan Jansen is (206) 668-4737.
- Does Nathan Jansen accept Medicare?
- Nathan Jansen is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Nathan Jansen's NPI active?
- Yes — Nathan Jansen's NPI (1285049981) is active in the NPPES registry as of the last update on 2021-04-19.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.