Mackenzie Twaddell, OTD
NPI 1487376943 · Occupational Therapist · Seattle, WA
Enrolled with Medicare as Practitioner - Occupational Therapist in Private Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mackenzie Twaddell, OTD is a Occupational Therapist provider in Seattle, WA (NPI 1487376943).
Provider details
- NPI number
- 1487376943
- Entity type
- Individual
- Primary specialty
- Occupational TherapistRespiratory, Developmental, Rehabilitative and Restorative Service Providers
- Credential
- OTD
- Sex
- Female
- Sole proprietor
- No
Specialties & taxonomies
Respiratory, Developmental, Rehabilitative and Restorative Service Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
3 yrs in NPPES registry
- Profile completeness38% of score
83% 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
- 2022-09-13
- Last updated
- 2022-09-13
- Certified
- 2022-09-13
Frequently asked questions
- What is Mackenzie Twaddell's NPI number?
- Mackenzie Twaddell's National Provider Identifier (NPI) is 1487376943, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mackenzie Twaddell's specialty?
- Mackenzie Twaddell is listed in the NPPES registry with a primary specialty of Occupational Therapist (Respiratory, Developmental, Rehabilitative and Restorative Service Providers).
- Where is Mackenzie Twaddell located?
- Mackenzie Twaddell's practice location on file with NPPES is 2900 1st Ave Apt N409, Seattle, WA 98121-1040.
- What is Mackenzie Twaddell's phone number?
- The practice phone number listed in the NPPES registry for Mackenzie Twaddell is (717) 919-4351.
- Does Mackenzie Twaddell accept Medicare?
- Mackenzie Twaddell is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mackenzie Twaddell's NPI active?
- Yes — Mackenzie Twaddell's NPI (1487376943) is active in the NPPES registry as of the last update on 2022-09-13.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.