Catherine Sumerwell, DNP
NPI 1649674060 · Family Nurse Practitioner · Seattle, WA
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Catherine Sumerwell, DNP is a Family Nurse Practitioner provider in Seattle, WA (NPI 1649674060).
Provider details
- NPI number
- 1649674060
- Entity type
- Individual
- Primary specialty
- Family Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- DNP
- Sex
- Female
- Sole proprietor
- No
- License
- AP60505205 (WA)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
11 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
Mailing address
Registry dates
- Enumerated
- 2014-10-14
- Last updated
- 2018-03-07
Frequently asked questions
- What is Catherine Sumerwell's NPI number?
- Catherine Sumerwell's National Provider Identifier (NPI) is 1649674060, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Catherine Sumerwell's specialty?
- Catherine Sumerwell is listed in the NPPES registry with a primary specialty of Family Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Catherine Sumerwell located?
- Catherine Sumerwell's practice location on file with NPPES is 10521 Meridian Ave N, Seattle, WA 98133-9509.
- What is Catherine Sumerwell's phone number?
- The practice phone number listed in the NPPES registry for Catherine Sumerwell is (206) 296-4990.
- Does Catherine Sumerwell accept Medicare?
- Catherine Sumerwell is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Catherine Sumerwell's NPI active?
- Yes — Catherine Sumerwell's NPI (1649674060) is active in the NPPES registry as of the last update on 2018-03-07.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.