John Wiederspan
NPI 1891249785 · Certified Registered Nurse Anesthetist · Seattle, WA
Enrolled with Medicare as Practitioner - Certified Registered Nurse Anesthetist (crna) · source: CMS PECOS Public Provider Enrollment (2026.04.01)
John Wiederspan is a Certified Registered Nurse Anesthetist provider in Seattle, WA (NPI 1891249785).
Provider details
- NPI number
- 1891249785
- Entity type
- Individual
- Primary specialty
- Certified Registered Nurse AnesthetistPhysician Assistants & Advanced Practice Nursing Providers
- Sex
- Male
- Sole proprietor
- No
- License
- AP60699321 (WA)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
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
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
- 2016-08-08
- Last updated
- 2016-11-13
Frequently asked questions
- What is John Wiederspan's NPI number?
- John Wiederspan's National Provider Identifier (NPI) is 1891249785, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is John Wiederspan's specialty?
- John Wiederspan is listed in the NPPES registry with a primary specialty of Certified Registered Nurse Anesthetist (Physician Assistants & Advanced Practice Nursing Providers).
- Where is John Wiederspan located?
- John Wiederspan's practice location on file with NPPES is 1959 Ne Pacific St, Seattle, WA 98195-0001.
- What is John Wiederspan's phone number?
- The practice phone number listed in the NPPES registry for John Wiederspan is (206) 598-4260.
- Does John Wiederspan accept Medicare?
- John Wiederspan is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is John Wiederspan's NPI active?
- Yes — John Wiederspan's NPI (1891249785) is active in the NPPES registry as of the last update on 2016-11-13.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.