NPPES file of Aug 9, 2026

Andrea Y. Chan, OTR

Occupational Therapist · Fullerton, CA

Andrea Y. Chan, OTR is an occupational therapist with a practice address in Fullerton, California, and NPI 1033140231, issued on Jul 5, 2006. Check the license (California 8839, as entered in NPPES) with the California board that licenses this profession; the federal record below is the public data PlainDoctor holds for this provider.

Record from CMS NPPES, file of Aug 9, 2026 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1033140231
Name
Andrea Y. Chan
Credential
OTR
Primary taxonomy
Occupational Therapist 225X00000X
License number
8839 CA
Self-reported in NPPES; status is on the state search
Practice location
2000 E Chapman Ave, Fullerton, CA 92831
Phone
(714) 870-1744
Enumerated
Jul 5, 2006
Record last updated
Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
Fax
(714) 870-1784
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
Download card Updates feed

8 nearest occupational therapist records → All 9,244 in California → Look up another NPI →

Also registered at 2000 E Chapman Ave

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Anant Desai, PTPhysical Therapist1881621555
  2. Smit Gandhi, MPTPhysical Therapist1346271137
  3. Dennis Kudlik, DDSDentist1033381934
  4. Howard Pyo, D.OFamily Medicine Physician1831540632
  5. Silvia Ray, M.ED.Speech-Language Pathologist1710915434
  6. Corina Tieves, PTAPhysical Therapy Assistant1396771929

Verify Andrea Y. Chan in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich California board licenses this profession
    Search for license 8839    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Find the California license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

Is this page about you? You can ask us to correct, restrict or remove it: how.

Andrea Y. Chan among 9,244 occupational therapist records in California

Andrea Y. Chan, OTR is one of 9,244 occupational therapist records with a practice address in California. 9% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does not. Its NPI, issued in 2006, is newer than under 1% of them.

  • NPI issued2006 · under 1% of these records are older, 95% newer
  • In a Medicare fileNo · 9% of these records are
  • In the CMS Doctors and Clinicians fileNo · 10% of these records are
  • Record last updated2007 · 56% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 225X00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

53 occupational therapist records list a practice address in Fullerton

They are 53 of the 5,437 NPPES records with a practice address in Fullerton, and 9,244 occupational therapist records in California. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

All 9,244 in California → Every provider in Fullerton → Occupational Therapist nationwide →

The 8 occupational therapist records with the nearest ZIP codes

  1. John Arthur Alba, RPTFullerton, CA 928311184894446
  2. Dennis Ray Baloy, OTR-LFullerton, CA 928311437357308
  3. Diana BystryFullerton, CA 928311770222424
  4. So Young Choi, OTR/LFullerton, CA 928311063886794
  5. Sydney Hoang, OTFullerton, CA 928311659006302
  6. Cherlene Hung, MS, OTR/LFullerton, CA 928311831799485
  7. Pooja ShahFullerton, CA 928311699074377
  8. Abelardo TorresFullerton, CA 928311124416532

Common questions

What is Andrea Y. Chan, OTR's NPI number?

Andrea Y. Chan, OTR's National Provider Identifier (NPI) is 1033140231, issued on Jul 5, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Andrea Y. Chan, OTR located?

The NPPES record lists a practice address at 2000 E Chapman Ave, Fullerton, CA, 92831. Phone: (714) 870-1744. Providers update this record themselves, so call before visiting.

How can I verify Andrea Y. Chan, OTR's license?

NPPES lists California license number 8839, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. An NPI identifies who bills; it is not a license.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.