Yen Lam, MS, OTR/L
NPI 1235422841 · Pediatric Occupational Therapist · Fullerton, CA
Yen Lam, MS, OTR/L is a Pediatric Occupational Therapist provider in Fullerton, CA (NPI 1235422841).
Provider details
- NPI number
- 1235422841
- Entity type
- Individual
- Primary specialty
- Pediatric Occupational TherapistRespiratory, Developmental, Rehabilitative and Restorative Service Providers
- Credential
- MS, OTR/L
- Sex
- Female
- Sole proprietor
- No
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
15 yrs in NPPES registry
- Profile completeness38% of score
83% 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
- 2011-05-16
- Last updated
- 2026-04-06
- Certified
- 2026-04-06
Frequently asked questions
- What is Yen Lam's NPI number?
- Yen Lam's National Provider Identifier (NPI) is 1235422841, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Yen Lam's specialty?
- Yen Lam is listed in the NPPES registry with a primary specialty of Pediatric Occupational Therapist (Respiratory, Developmental, Rehabilitative and Restorative Service Providers).
- Where is Yen Lam located?
- Yen Lam's practice location on file with NPPES is 233 Orangefair Mall, Fullerton, CA 92832-3038.
- What is Yen Lam's phone number?
- The practice phone number listed in the NPPES registry for Yen Lam is (714) 870-6112.
- Is Yen Lam's NPI active?
- Yes — Yen Lam's NPI (1235422841) is active in the NPPES registry as of the last update on 2026-04-06.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.