OrganizationActive
Northwest Colon and Rectal Clinic
NPI 1215092929 · Specialist · Seattle, WA
Northwest Colon and Rectal Clinic is a Specialist organization in Seattle, WA (NPI 1215092929).
Provider details
- NPI number
- 1215092929
- Entity type
- Organization
- Primary specialty
- SpecialistOther Service Providers
- Organization subpart
- No
- Authorized official
- Denise Gwinn, Administrator(206) 386-6600
Specialties & taxonomies
Other Service Providers
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
1101 Madison St
Suite 500
Seattle, WA 98104-1306
Phone: (206) 386-6600
Fax: (206) 386-2452
Street-level locationGet directions
Mailing address
1101 Madison St
Seattle, WA 98104-1306
Registry dates
- Enumerated
- 2006-12-22
- Last updated
- 2020-08-22
Frequently asked questions
- What is Northwest Colon and Rectal Clinic's NPI number?
- Northwest Colon and Rectal Clinic's National Provider Identifier (NPI) is 1215092929, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is Northwest Colon and Rectal Clinic?
- Northwest Colon and Rectal Clinic is classified in the NPPES registry as Specialist (Other Service Providers).
- Where is Northwest Colon and Rectal Clinic located?
- Northwest Colon and Rectal Clinic's practice location on file with NPPES is 1101 Madison St, Seattle, WA 98104-1306.
- What is Northwest Colon and Rectal Clinic's phone number?
- The practice phone number listed in the NPPES registry for Northwest Colon and Rectal Clinic is (206) 386-6600.
- Who is the authorized official for Northwest Colon and Rectal Clinic?
- The authorized official listed on Northwest Colon and Rectal Clinic's NPPES record is Denise Gwinn, Administrator. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is Northwest Colon and Rectal Clinic's NPI active?
- Yes — Northwest Colon and Rectal Clinic's NPI (1215092929) is active in the NPPES registry as of the last update on 2020-08-22.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.