Alexander Richard Williamson, DPT
Physical Therapist · Laguna Hills, CA
Alexander Richard Williamson, DPT is a physical therapist with a practice address in Laguna Hills, California, and NPI 1265091862, issued on Jun 7, 2019. Check the license (California PT296726, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Alexander Richard Williamson
- Credential
- DPT
- Primary taxonomy
- Physical Therapist 225100000X
- License number
- PT296726 CA
Self-reported in NPPES; status is on the state search - Practice location
- 23001 Del Lago Dr Ste C1, Laguna Hills, CA 92653
- Phone
- (949) 387-7333
- Enumerated
- Jun 7, 2019
- Record last updated
- Apr 21, 2024
- Fax
- (949) 916-7309
- Medicare enrollment
- Enrolled (PECOS I20190725000393); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest physical therapist records → All 22,531 in California → Look up another NPI →
Also registered at 23001 Del Lago Dr Ste C1
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Kevin AguinaldoPhysical Therapist1649648023
- Alyssa Caplan, PT, DPTPhysical Therapist1689128357
- Shawn Hansen, DPTPhysical Therapist1164220406
- Catherine HelgesonPhysical Therapist1417881327
- Nastassia MilivojevicPhysical Therapist1871449942
- Laura Scott, M.P.T.Physical Therapist1447549399
Verify Alexander Richard Williamson in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license PT296726Check 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
- Prosport Physical Therapy Professionals IncLaguna Hills, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Alexander Richard Williamson among 22,531 physical therapist records in California
Alexander Richard Williamson, DPT is one of 22,531 physical therapist records with a practice address in California. 32% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2019, is newer than 64% of them.
- NPI issued2019 · 64% of these records are older, 31% newer
- In a Medicare fileYes · 32% of these records are
- In the CMS Doctors and Clinicians fileYes · 34% of these records are
- Graduated2019 · median 2017 among the 7,751 with a school on file
- Record last updated2024 · 61% 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 California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
106 physical therapist records list a practice address in Laguna Hills
They are 106 of the 2,069 NPPES records with a practice address in Laguna Hills, and 22,531 physical therapist records in California.
All 22,531 in California → Every provider in Laguna Hills → Physical Therapist nationwide →
The 8 physical therapist records with the nearest ZIP codes
- Victor Carlos, DPTLaguna Hills, CA 926531952362964
- Katharine Clarke, P.T & PSYCHOLOGISTLaguna Hills, CA 926531629092127
- Janice Dotts, RPTLaguna Hills, CA 926531679661904
- Linda Fitzgerald, RPTLaguna Hills, CA 926531790719847
- Barry Klonsky, RPTLaguna Hills, CA 926531700975661
- Peter Konopasky, RPTLaguna Hills, CA 926531720169980
- Paul Konopasky, RPTLaguna Hills, CA 926531376624528
- Anna Lamboy, P.T.Laguna Hills, CA 926531295750032
Common questions
What is Alexander Richard Williamson, DPT's NPI number?
Alexander Richard Williamson, DPT's National Provider Identifier (NPI) is 1265091862, issued on Jun 7, 2019. An NPI identifies a provider in billing; it is not a license.
Where is Alexander Richard Williamson, DPT located?
The NPPES record lists a practice address at 23001 Del Lago Dr Ste C1, Laguna Hills, CA, 92653. Phone: (949) 387-7333. Providers update this record themselves, so call before visiting.
How can I verify Alexander Richard Williamson, DPT's license?
NPPES lists California license number PT296726, as entered by the provider. Search the California 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.