Margaret P. Pierson, MOT, OTR/L
Occupational Therapist · Phoenix, AZ
Margaret P. Pierson, MOT, OTR/L is an occupational therapist with a practice address in Phoenix, Arizona, and NPI 1427381946, issued on Sep 16, 2009. Check the license (Arizona 4217, as entered in NPPES) with the Arizona board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Margaret P. Pierson
- Credential
- MOT, OTR/L
- Primary taxonomy
- Occupational Therapist 225X00000X
- License number
- 4217 AZ
Self-reported in NPPES; status is on the state search - Practice location
- 3401 N 67TH Ave, Phoenix, AZ 85033
- Phone
- (623) 691-4091
- Enumerated
- Sep 16, 2009
- Record last updated
- Sep 16, 2009 (not updated in 17 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20190523000090); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest occupational therapist records → All 2,133 in Arizona → Look up another NPI →
Also registered at 3401 N 67TH Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Chawna Anderson, LPNLicensed Practical Nurse1487840500
- Monica Avina-Vizzerra, M.S.Speech-Language Pathologist1306153028
- Andrea Babcock, MS OTRLPediatric Occupational Therapist1457495970
- Noreen Baldwin, M.S.Speech-Language Pathologist1871646091
- Marisol Barreto, L.P.N.Licensed Practical Nurse1235332800
- Linda BateyRegistered Nurse1518249945
Verify Margaret P. Pierson in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Arizona board licenses this profession
Search for license 4217Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Bills Medicare through one group practice
- Empowerme Rehabilitation LLCScottsdale, AZ
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Margaret P. Pierson among 2,133 occupational therapist records in Arizona
Margaret P. Pierson, MOT, OTR/L is one of 2,133 occupational therapist records with a practice address in Arizona. 11% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2009, is newer than 26% of them.
- NPI issued2009 · 26% of these records are older, 71% newer
- In a Medicare fileYes · 11% of these records are
- In the CMS Doctors and Clinicians fileYes · 12% of these records are
- Graduated1985 · median 2019 among the 263 with a school on file
- Record last updated2009 · 62% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 225X00000X and a Arizona practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
538 occupational therapist records list a practice address in Phoenix
They are 538 of the 31,399 NPPES records with a practice address in Phoenix, and 2,133 occupational therapist records in Arizona.
All 2,133 in Arizona → Every provider in Phoenix → Occupational Therapist nationwide →
The 8 occupational therapist records with the nearest ZIP codes
- Christina Eng, OTR/LPhoenix, AZ 850331831379049
- Sarah Kaiser, OTR/LPhoenix, AZ 850331902069008
- Pamela Matlin, OTRLPhoenix, AZ 850331992831598
- Diane Quisenberry, OTRLPhoenix, AZ 850331245366368
- Sarah Stauffer, OTD, OTR/LPhoenix, AZ 850331760635775
- Isabel Suarez, MOT, OTR/LPhoenix, AZ 850331619470077
- Monica AlvarezPhoenix, AZ 850321992543417
- Audrey Baker, OTD, OTR/LPhoenix, AZ 850321043094675
Common questions
What is Margaret P. Pierson, MOT, OTR/L's NPI number?
Margaret P. Pierson, MOT, OTR/L's National Provider Identifier (NPI) is 1427381946, issued on Sep 16, 2009. An NPI identifies a provider in billing; it is not a license.
Where is Margaret P. Pierson, MOT, OTR/L located?
The NPPES record lists a practice address at 3401 N 67TH Ave, Phoenix, AZ, 85033. Phone: (623) 691-4091. Providers update this record themselves, so call before visiting.
How can I verify Margaret P. Pierson, MOT, OTR/L's license?
NPPES lists Arizona license number 4217, as entered by the provider. Search the Arizona board that licenses this profession; the NPPES record confirms identity only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.