Sunny Chang, OT
NPI 1497990683 · Occupational Therapist · Palo Alto, CA
Sunny Chang, OT is a Occupational Therapist provider in Palo Alto, CA (NPI 1497990683).
Provider details
- NPI number
- 1497990683
- Entity type
- Individual
- Primary specialty
- Occupational TherapistRespiratory, Developmental, Rehabilitative and Restorative Service Providers
- Credential
- OT
- Sex
- Female
- Sole proprietor
- No
- License
- 18480 (CA)
Specialties & taxonomies
Respiratory, Developmental, Rehabilitative and Restorative Service Providers
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
17 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
3 documented practice locations
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
Additional practice locations (2)
- 321 Middlefield RdMenlo Park, CA 94025-3500Phone: (650) 736-2000
- 725 Welch RdPalo Alto, CA 94304-1601Phone: (650) 497-8000
Registry dates
- Enumerated
- 2008-12-03
- Last updated
- 2023-07-12
- Certified
- 2023-07-12
Frequently asked questions
- What is Sunny Chang's NPI number?
- Sunny Chang's National Provider Identifier (NPI) is 1497990683, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Sunny Chang's specialty?
- Sunny Chang is listed in the NPPES registry with a primary specialty of Occupational Therapist (Respiratory, Developmental, Rehabilitative and Restorative Service Providers).
- Where is Sunny Chang located?
- Sunny Chang's practice location on file with NPPES is 725 Welch Rd, Palo Alto, CA 94304-1601.
- What is Sunny Chang's phone number?
- The practice phone number listed in the NPPES registry for Sunny Chang is (650) 497-8000.
- Is Sunny Chang's NPI active?
- Yes — Sunny Chang's NPI (1497990683) is active in the NPPES registry as of the last update on 2023-07-12.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.