DAVID Y CHAN OTR/L
NPI 1720304405
Occupational Therapist in Irvine, CA

Active since April 20, 2010Accepts Medicare Assignment

NPPES record last updated: April 20, 2010. Verified against the NPPES registry weekly; last sync: November 01, 2026.

About David Y Chan Otr/l NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DAVID Y CHAN OTR/L (NPI 1720304405) is an individual occupational therapist in Irvine, California, licensed in California (8053) and active in the NPI registry since April 2010. He is a graduate of Other (2004).

NPPES Registry Identity

NPI1720304405
Entity TypeIndividualMale
Primary Taxonomy225X00000X
Provider Legal NameDAVID Y CHANCredential: OTR/L
Location Address81 WATERMANIrvine, CA 92602-1654
Mailing Address81 WatermanIrvine, CA 92602-1654
Sole ProprietorYes
Medical School CMSOtherGraduated 2004
Enumeration DateApril 20, 2010
✔ NPI 1720304405 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyOccupational TherapistRespiratory, Developmental, Rehabilitative and Restorative Service Providers
Taxonomy Code225X00000X
License✔ Licensed in CA · 8053
Definition
An occupational therapist is a person who has graduated from an entry-level occupational therapy program accredited by the Accreditation Council for Occupational Therapy Education (ACOTE) or predecessor organizations, or approved by the World Federation of Occupational Therapists (WFOT), or an equivalent international occupational therapy education program; has successfully completed a period of supervised fieldwork experience required by the occupational therapy program; has passed a nationally recognized entry-level examination for occupational therapists, and fulfills state requirements for licensure, certification, or registration. An occupational therapist provides interventions based on evaluation and which emphasize the therapeutic use of everyday life activities (i.e., occupations) with individuals or groups for the purpose of facilitating participation in roles and situations and in home, school, workplace, community and other settings. Occupational therapy services are provided for the purpose of promoting health and wellness and are provided to those who have or are at risk for developing an illness, injury, disease, disorder, condition, impairment, disability, activity limitation, or participation restriction. Occupational therapists address the physical, cognitive, psychosocial, sensory, and other aspects of occupational performance in a variety of contexts to support engagement in everyday life activities that affect health, well-being, and quality of life.
81 WATERMAN, Irvine, CA 92602

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

David Y Chan Otr/l is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID4880873587
PECOS Enrollment IDI20110127000385

Medicare Billing Reassignment

Medicare enrollment records show David Chan reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Physical Therapy
514 8TH ST
Huntington Beach, CA 92648
  • Reassigned Medicare billing, California enrollment
  • 43 clinicians in this Medicare group

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is David Chan's NPI number?

The NPI number for David Chan is 1720304405. It was assigned to this individual provider in the NPPES registry on April 20, 2010.

Where is David Chan located?

David Chan practices at 81 Waterman, Irvine, CA 92602. The listed phone number is (714) 760-1986.

What is David Chan's specialty?

The primary specialty registered for this NPI is Occupational Therapist with taxonomy code 225X00000X.

Is David Chan enrolled in Medicare?

Yes. David Chan is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

Which organization bills Medicare for David Chan's services?

According to the CMS Revalidation Reassignment List (October 2026 release), David Chan reassigns Medicare benefits to Mobile Therapy Specialists Inc (Huntington Beach, CA). The reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for David Chan's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for David Chan was last updated on April 20, 2010. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 16 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.