Orion Siu
NPI 1538842844 · Physical Therapist · Oakland, CA
Enrolled with Medicare as Practitioner - Physical Therapist in Private Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Orion Siu is a Physical Therapist provider in Oakland, CA (NPI 1538842844).
Provider details
- NPI number
- 1538842844
- Entity type
- Individual
- Primary specialty
- Physical TherapistRespiratory, Developmental, Rehabilitative and Restorative Service Providers
- Sex
- Male
- Sole proprietor
- No
- License
- 304535 (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 tenure38% of score
2 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
- 2023-08-11
- Last updated
- 2023-08-11
- Certified
- 2023-08-11
Frequently asked questions
- What is Orion Siu's NPI number?
- Orion Siu's National Provider Identifier (NPI) is 1538842844, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Orion Siu's specialty?
- Orion Siu is listed in the NPPES registry with a primary specialty of Physical Therapist (Respiratory, Developmental, Rehabilitative and Restorative Service Providers).
- Where is Orion Siu located?
- Orion Siu's practice location on file with NPPES is 4341 Piedmont Ave Ste 201, Oakland, CA 94611-4792.
- What is Orion Siu's phone number?
- The practice phone number listed in the NPPES registry for Orion Siu is (341) 200-1960.
- Does Orion Siu accept Medicare?
- Orion Siu is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Orion Siu's NPI active?
- Yes — Orion Siu's NPI (1538842844) is active in the NPPES registry as of the last update on 2023-08-11.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.