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John Winther, M.D.
NPI 1992856959 · Pediatrics Physician · Federal Way, WA
John Winther, M.D. is a Pediatrics Physician provider in Federal Way, WA (NPI 1992856959).
Provider details
- NPI number
- 1992856959
- Entity type
- Individual
- Primary specialty
- Pediatrics PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- MD00019985 (WA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
Detailed profile(90/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
19 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
301 S 320th St
Federal Way, WA 98003-5200
Phone: (253) 874-7000
Street-level locationGet directions
Mailing address
Po Box 34584
Seattle, WA 98124-1584
Registry dates
- Enumerated
- 2007-01-16
- Last updated
- 2007-10-18
Frequently asked questions
- What is John Winther's NPI number?
- John Winther's National Provider Identifier (NPI) is 1992856959, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is John Winther's specialty?
- John Winther is listed in the NPPES registry with a primary specialty of Pediatrics Physician (Allopathic & Osteopathic Physicians).
- Where is John Winther located?
- John Winther's practice location on file with NPPES is 301 S 320th St, Federal Way, WA 98003-5200.
- What is John Winther's phone number?
- The practice phone number listed in the NPPES registry for John Winther is (253) 874-7000.
- Is John Winther's NPI active?
- Yes — John Winther's NPI (1992856959) is active in the NPPES registry as of the last update on 2007-10-18.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.