Ian Williamson
Physical Therapist · Glendale, AZ
Ian Williamson is a physical therapist with a practice address in Glendale, Arizona, and NPI 1396696381, issued on Feb 5, 2026. Check the license with the Arizona board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Ian Williamson
- Primary taxonomy
- Physical Therapist 225100000X
- Practice location
- 9494 W Northern Ave Ste 114&115, Glendale, AZ 85305
- Phone
- (623) 745-3112
- Enumerated
- Feb 5, 2026
- Record last updated
- Feb 5, 2026
- Medicare enrollment
- Enrolled (PECOS I20260227003105); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest physical therapist records → All 5,351 in Arizona → Look up another NPI →
Also registered at 9494 W Northern Ave Ste 114&115
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Dilawar MaanPhysical Therapist1275365140
- Jenifer RodriguezPhysical Therapist1972397123
- Dhruv ShahPhysical Therapist1437913894
- Daria Wilson, DPTPhysical Therapist1689368292
Verify Ian Williamson in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Arizona board licenses this professionCheck 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
- Ati Holdings OF Arizona LLCGlendale, AZ
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Ian Williamson among 5,351 physical therapist records in Arizona
Ian Williamson is one of 5,351 physical therapist records with a practice address in Arizona. 40% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2026, is newer than 97% of them.
- NPI issued2026 · 97% of these records are older, 0% newer
- In a Medicare fileYes · 40% of these records are
- In the CMS Doctors and Clinicians fileYes · 41% of these records are
- Graduated2025 · median 2018 among the 2,172 with a school on file
- Record last updated2026 · 54% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 225100000X and a Arizona practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
236 physical therapist records list a practice address in Glendale
They are 236 of the 5,447 NPPES records with a practice address in Glendale, and 5,351 physical therapist records in Arizona.
All 5,351 in Arizona → Every provider in Glendale → Physical Therapist nationwide →
The 8 physical therapist records with the nearest ZIP codes
- Barbara BuschGlendale, AZ 853051902667439
- Keith Butler, DPTGlendale, AZ 853051881088144
- Nicole Delia, DPTGlendale, AZ 853051114571502
- Steven Esquer, DPTGlendale, AZ 853051205206430
- Alaina Gignac, DPTGlendale, AZ 853051053049981
- Dilawar MaanGlendale, AZ 853051275365140
- Madison Madris, PTGlendale, AZ 853051720861610
- Rebecca Patton, PT, DPTGlendale, AZ 853051033607916
Common questions
What is Ian Williamson's NPI number?
Ian Williamson's National Provider Identifier (NPI) is 1396696381, issued on Feb 5, 2026. An NPI identifies a provider in billing; it is not a license.
Where is Ian Williamson located?
The NPPES record lists a practice address at 9494 W Northern Ave Ste 114&115, Glendale, AZ, 85305. Phone: (623) 745-3112. Providers update this record themselves, so call before visiting.
How can I verify Ian Williamson's license?
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.