Mary Oconnor
NPI 1700840691 · Internal Medicine Physician · Seattle, WA
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mary Oconnor is a Internal Medicine Physician provider in Seattle, WA (NPI 1700840691).
Provider details
- NPI number
- 1700840691
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Sex
- Female
- Sole proprietor
- No
- License
- 28887 (WA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
20 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.
Practice location
Mailing address
Additional practice locations (1)
- 201 16th Ave ESeattle, WA 98112-5226Phone: (206) 326-3000
Registry dates
- Enumerated
- 2006-04-17
- Last updated
- 2021-05-20
- Certified
- 2021-05-20
Frequently asked questions
- What is Mary Oconnor's NPI number?
- Mary Oconnor's National Provider Identifier (NPI) is 1700840691, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mary Oconnor's specialty?
- Mary Oconnor is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Mary Oconnor located?
- Mary Oconnor's practice location on file with NPPES is 3901 Hoyt Ave, Seattle, WA 98201-4918.
- What is Mary Oconnor's phone number?
- The practice phone number listed in the NPPES registry for Mary Oconnor is (425) 259-0966.
- Does Mary Oconnor accept Medicare?
- Mary Oconnor is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mary Oconnor's NPI active?
- Yes — Mary Oconnor's NPI (1700840691) is active in the NPPES registry as of the last update on 2021-05-20.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.