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.

IndividualActive

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)

Practice location

301 S 320th St

Federal Way, WA 98003-5200

Phone: (253) 874-7000

Street-level locationGet directions

More WA providers

Mailing address

Po Box 34584

Seattle, WA 98124-1584

Specialties & taxonomies

Pediatrics PhysicianPrimary208000000XLicense MD00019985 (WA)
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.

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.

Provider details

Practice location

Mailing address

Specialties & taxonomies

Profile Score

Registry dates

Frequently asked questions

Specialties & taxonomies

Profile Score

Frequently asked questions