Margaret Pierson, MOT, OTR/L
NPI 1427381946 · Occupational Therapist · Phoenix, AZ
Enrolled with Medicare as Practitioner - Occupational Therapist in Private Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Margaret Pierson, MOT, OTR/L is a Occupational Therapist provider in Phoenix, AZ (NPI 1427381946).
Provider details
- NPI number
- 1427381946
- Entity type
- Individual
- Primary specialty
- Occupational TherapistRespiratory, Developmental, Rehabilitative and Restorative Service Providers
- Credential
- MOT, OTR/L
- Sex
- Female
- Sole proprietor
- Yes
- License
- 4217 (AZ)
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
16 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
- 2009-09-16
- Last updated
- 2009-09-16
Frequently asked questions
- What is Margaret Pierson's NPI number?
- Margaret Pierson's National Provider Identifier (NPI) is 1427381946, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Margaret Pierson's specialty?
- Margaret Pierson is listed in the NPPES registry with a primary specialty of Occupational Therapist (Respiratory, Developmental, Rehabilitative and Restorative Service Providers).
- Where is Margaret Pierson located?
- Margaret Pierson's practice location on file with NPPES is 3401 N 67th Ave, Phoenix, AZ 85033-4517.
- What is Margaret Pierson's phone number?
- The practice phone number listed in the NPPES registry for Margaret Pierson is (623) 691-4091.
- Does Margaret Pierson accept Medicare?
- Margaret Pierson is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Margaret Pierson's NPI active?
- Yes — Margaret Pierson's NPI (1427381946) is active in the NPPES registry as of the last update on 2009-09-16.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.