Jonathan Mosser, MD
NPI 1639448947 · Pediatric Infectious Diseases Physician · Seattle, WA
Enrolled with Medicare as Practitioner - Infectious Disease · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Jonathan Mosser, MD is a Pediatric Infectious Diseases Physician provider in Seattle, WA (NPI 1639448947).
Provider details
- NPI number
- 1639448947
- Entity type
- Individual
- Primary specialty
- Pediatric Infectious Diseases PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- MD60657190 (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 tenure38% of score
14 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.
Practice location
Mailing address
Registry dates
- Enumerated
- 2011-12-16
- Last updated
- 2019-06-17
Frequently asked questions
- What is Jonathan Mosser's NPI number?
- Jonathan Mosser's National Provider Identifier (NPI) is 1639448947, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Jonathan Mosser's specialty?
- Jonathan Mosser is listed in the NPPES registry with a primary specialty of Pediatric Infectious Diseases Physician (Allopathic & Osteopathic Physicians).
- Where is Jonathan Mosser located?
- Jonathan Mosser's practice location on file with NPPES is 4800 Sand Point Way Ne # Oc.7830, Seattle, WA 98105-3901.
- What is Jonathan Mosser's phone number?
- The practice phone number listed in the NPPES registry for Jonathan Mosser is (206) 520-5000.
- Does Jonathan Mosser accept Medicare?
- Jonathan Mosser is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Jonathan Mosser's NPI active?
- Yes — Jonathan Mosser's NPI (1639448947) is active in the NPPES registry as of the last update on 2019-06-17.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.