What is Emily Grossniklaus's NPI number?

Emily Grossniklaus's National Provider Identifier (NPI) is 1003278706, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is Emily Grossniklaus's specialty?

Emily Grossniklaus is listed in the NPPES registry with a primary specialty of Hospitalist Physician (Allopathic & Osteopathic Physicians).

Where is Emily Grossniklaus located?

Emily Grossniklaus's practice location on file with NPPES is 1959 Ne Pacific St, Seattle, WA 98195-2420.

What is Emily Grossniklaus's phone number?

The practice phone number listed in the NPPES registry for Emily Grossniklaus is (206) 520-5000.

Does Emily Grossniklaus accept Medicare?

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

Is Emily Grossniklaus's NPI active?

Yes — Emily Grossniklaus's NPI (1003278706) is active in the NPPES registry as of the last update on 2025-03-13.

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Emily Grossniklaus, M.D.

NPI 1003278706 · Hospitalist Physician · Seattle, WA

Emily Grossniklaus, M.D. is a Hospitalist Physician provider in Seattle, WA (NPI 1003278706).

Provider details

NPI number: 1003278706
Entity type: Individual
Primary specialty: Hospitalist PhysicianAllopathic & Osteopathic Physicians
Credential: M.D.
Sex: Female
Sole proprietor: No
License: MD60877066 (WA)

Practice location

1959 Ne Pacific St

Seattle, WA 98195-2420

Phone: (206) 520-5000

Street-level locationGet directions

More WA providers

Mailing address

Po Box 50095

Seattle, WA 98145-5095

Specialties & taxonomies

Hospitalist PhysicianPrimary208M00000XLicense MD60877066 (WA)
Allopathic & Osteopathic Physicians
Internal Medicine Physician207R00000XLicense MD60877066 (WA)
Allopathic & Osteopathic Physicians

Enrolled with Medicare as Practitioner - Hospitalist · source: CMS PECOS Public Provider Enrollment (2026.04.01)

Profile Score

Established profile(73/100 index)

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

Registry tenure38% of score
10 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: 2016-03-22
Last updated: 2025-03-13
Certified: 2025-03-13

Frequently asked questions

What is Emily Grossniklaus's NPI number?: Emily Grossniklaus's National Provider Identifier (NPI) is 1003278706, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
What is Emily Grossniklaus's specialty?: Emily Grossniklaus is listed in the NPPES registry with a primary specialty of Hospitalist Physician (Allopathic & Osteopathic Physicians).
Where is Emily Grossniklaus located?: Emily Grossniklaus's practice location on file with NPPES is 1959 Ne Pacific St, Seattle, WA 98195-2420.
What is Emily Grossniklaus's phone number?: The practice phone number listed in the NPPES registry for Emily Grossniklaus is (206) 520-5000.
Does Emily Grossniklaus accept Medicare?: Emily Grossniklaus is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
Is Emily Grossniklaus's NPI active?: Yes — Emily Grossniklaus's NPI (1003278706) is active in the NPPES registry as of the last update on 2025-03-13.

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