Alexander Williamson, DPT
NPI 1265091862 · Physical Therapist · Laguna Hills, CA
Enrolled with Medicare as Practitioner - Physical Therapist in Private Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Alexander Williamson, DPT is a Physical Therapist provider in Laguna Hills, CA (NPI 1265091862).
Provider details
- NPI number
- 1265091862
- Entity type
- Individual
- Primary specialty
- Physical TherapistRespiratory, Developmental, Rehabilitative and Restorative Service Providers
- Credential
- DPT
- Sex
- Male
- Sole proprietor
- No
- License
- PT296726 (CA)
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 tenure28% of score
7 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
1,561 Medicare services, 2024 (ranked within specialty)
Medicare volume is ranked against active providers in the same specialty. 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.
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Therapy Procedure Using Exercise to Develop Strength, Endurance, Range of Motion, and Flexibility, Each 15 Minutes97110 | 627 | $25 |
| Therapy Procedure Using Manual Technique, Each 15 Minutes97140 | 501 | $22 |
| Therapy Procedure Using Functional Activities97530 | 390 | $39 |
| Evaluation for Physical Therapy, Typically 20 Minutes97161 | 43 | $105 |
Typical Medicare-allowed amounts for these services range $22–$105 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
Practice location
Mailing address
Registry dates
- Enumerated
- 2019-06-07
- Last updated
- 2024-04-21
- Certified
- 2024-04-21
Frequently asked questions
- What is Alexander Williamson's NPI number?
- Alexander Williamson's National Provider Identifier (NPI) is 1265091862, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Alexander Williamson's specialty?
- Alexander Williamson is listed in the NPPES registry with a primary specialty of Physical Therapist (Respiratory, Developmental, Rehabilitative and Restorative Service Providers).
- Where is Alexander Williamson located?
- Alexander Williamson's practice location on file with NPPES is 23001 Del Lago Dr Ste C1, Laguna Hills, CA 92653-1354.
- What is Alexander Williamson's phone number?
- The practice phone number listed in the NPPES registry for Alexander Williamson is (949) 387-7333.
- Does Alexander Williamson accept Medicare?
- Alexander Williamson is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Alexander Williamson's NPI active?
- Yes — Alexander Williamson's NPI (1265091862) is active in the NPPES registry as of the last update on 2024-04-21.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.