What is Isabelle Kiefaber's NPI number?

Isabelle Kiefaber's National Provider Identifier (NPI) is 1003433269, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is Isabelle Kiefaber's specialty?

Isabelle Kiefaber is listed in the NPPES registry with a primary specialty of Pediatrics Physician (Allopathic & Osteopathic Physicians).

Where is Isabelle Kiefaber located?

Isabelle Kiefaber's practice location on file with NPPES is 4800 Sand Point Way Ne # Oc.7830, Seattle, WA 98105-3901.

What is Isabelle Kiefaber's phone number?

The practice phone number listed in the NPPES registry for Isabelle Kiefaber is (206) 987-2525.

Does Isabelle Kiefaber accept Medicare?

Isabelle Kiefaber is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.

Is Isabelle Kiefaber's NPI active?

Yes — Isabelle Kiefaber's NPI (1003433269) is active in the NPPES registry as of the last update on 2024-04-25.

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Isabelle Kiefaber

NPI 1003433269 · Pediatrics Physician · Seattle, WA

Isabelle Kiefaber is a Pediatrics Physician provider in Seattle, WA (NPI 1003433269).

Provider details

NPI number: 1003433269
Entity type: Individual
Primary specialty: Pediatrics PhysicianAllopathic & Osteopathic Physicians
Sex: Female
Sole proprietor: No
License: ML61543728 (WA)

Practice location

4800 Sand Point Way Ne # Oc.7830

Seattle, WA 98105-3901

Phone: (206) 987-2525

Street-level locationGet directions

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Mailing address

4800 Sand Point Way Ne # Oc.7830

Seattle, WA 98105-3901

Specialties & taxonomies

Pediatrics PhysicianPrimary208000000XLicense ML61543728 (WA)
Allopathic & Osteopathic Physicians

Enrolled with Medicare as Order and Referring Only - Pediatric Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)

Profile Score

Established profile(65/100 index)

A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.

Registry tenure38% of score
6 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: 2020-07-02
Last updated: 2024-04-25
Certified: 2024-04-25

Frequently asked questions

What is Isabelle Kiefaber's NPI number?: Isabelle Kiefaber's National Provider Identifier (NPI) is 1003433269, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
What is Isabelle Kiefaber's specialty?: Isabelle Kiefaber is listed in the NPPES registry with a primary specialty of Pediatrics Physician (Allopathic & Osteopathic Physicians).
Where is Isabelle Kiefaber located?: Isabelle Kiefaber's practice location on file with NPPES is 4800 Sand Point Way Ne # Oc.7830, Seattle, WA 98105-3901.
What is Isabelle Kiefaber's phone number?: The practice phone number listed in the NPPES registry for Isabelle Kiefaber is (206) 987-2525.
Does Isabelle Kiefaber accept Medicare?: Isabelle Kiefaber is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
Is Isabelle Kiefaber's NPI active?: Yes — Isabelle Kiefaber's NPI (1003433269) is active in the NPPES registry as of the last update on 2024-04-25.

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