What is Deborah Washington's NPI number?

Deborah Washington's National Provider Identifier (NPI) is 1992794044, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is Deborah Washington's specialty?

Deborah Washington is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).

Where is Deborah Washington located?

Deborah Washington's practice location on file with NPPES is 1101 Madison St, Seattle, WA 98104-1306.

What is Deborah Washington's phone number?

The practice phone number listed in the NPPES registry for Deborah Washington is (206) 505-1101.

Does Deborah Washington accept Medicare?

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

Is Deborah Washington's NPI active?

Yes — Deborah Washington's NPI (1992794044) is active in the NPPES registry as of the last update on 2021-05-10.

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Deborah Washington, M.D.

NPI 1992794044 · Internal Medicine Physician · Seattle, WA

Deborah Washington, M.D. is a Internal Medicine Physician provider in Seattle, WA (NPI 1992794044).

Provider details

NPI number: 1992794044
Entity type: Individual
Primary specialty: Internal Medicine PhysicianAllopathic & Osteopathic Physicians
Credential: M.D.
Sex: Female
Sole proprietor: No
License: MD00035222 (WA)

Practice location

1101 Madison St

Suite 301

Seattle, WA 98104-1306

Phone: (206) 505-1101

Street-level locationGet directions

More WA providers

Mailing address

1101 Madison St

Seattle, WA 98104-1306

Specialties & taxonomies

Internal Medicine PhysicianPrimary207R00000XLicense MD00035222 (WA)
Allopathic & Osteopathic Physicians

Additional practice locations (1)

1401 Madison St Ste 100
Seattle, WA 98104-1316
Phone: (206) 386-6111

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

Profile Score

Detailed profile(95/100 index)

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

Registry tenure38% of score
21 yrs in NPPES registry
Profile completeness38% of score
100% of core fields populated
Practice footprint23% of score
2 documented practice locations

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: 2005-10-20
Last updated: 2021-05-10
Certified: 2021-05-10

Frequently asked questions

What is Deborah Washington's NPI number?: Deborah Washington's National Provider Identifier (NPI) is 1992794044, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
What is Deborah Washington's specialty?: Deborah Washington is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
Where is Deborah Washington located?: Deborah Washington's practice location on file with NPPES is 1101 Madison St, Seattle, WA 98104-1306.
What is Deborah Washington's phone number?: The practice phone number listed in the NPPES registry for Deborah Washington is (206) 505-1101.
Does Deborah Washington accept Medicare?: Deborah Washington is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
Is Deborah Washington's NPI active?: Yes — Deborah Washington's NPI (1992794044) is active in the NPPES registry as of the last update on 2021-05-10.

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

Additional practice locations (1)

Profile Score

Registry dates

Frequently asked questions

Specialties & taxonomies

Additional practice locations (1)

Profile Score

Frequently asked questions