Diana Bystry
Occupational Therapist · Fullerton, CA
Diana Bystry is an occupational therapist with a practice address in Fullerton, California, and NPI 1770222424, issued on Jun 1, 2022. Check the license with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Diana Bystry
- Primary taxonomy
- Occupational Therapist 225X00000X
- Practice location
- 1510 E Commonwealth Ave, Fullerton, CA 92831
- Phone
- (216) 772-1030
- Enumerated
- Jun 1, 2022
- Record last updated
- Jun 1, 2022
- Medicare enrollment
- Enrolled (PECOS I20220930002433); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest occupational therapist records → All 9,244 in California → Look up another NPI →
Also registered at 1510 E Commonwealth Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Sydney Hoang, OTOccupational Therapist1659006302
Verify Diana Bystry in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this professionCheck the board
- 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Bills Medicare through 2 group practices
- New Life Physical Therapy Services PCYorba Linda, CA
- Orthopaedic And Neurological Rehab IncSanta Ana, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Diana Bystry among 9,244 occupational therapist records in California
Diana Bystry 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. Its NPI, issued in 2022, is newer than 71% of them.
- NPI issued2022 · 71% of these records are older, 23% newer
- In a Medicare fileYes · 9% of these records are
- In the CMS Doctors and Clinicians fileYes · 10% of these records are
- Graduated2016 · median 2018 among the 910 with a school on file
- Record last updated2022 · 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.
All 9,244 in California → Every provider in Fullerton → Occupational Therapist nationwide →
The 8 occupational therapist records with the nearest ZIP codes
- John Arthur Alba, RPTFullerton, CA 928311184894446
- Dennis Ray Baloy, OTR-LFullerton, CA 928311437357308
- Andrea Chan, OTRFullerton, CA 928311033140231
- So Young Choi, OTR/LFullerton, CA 928311063886794
- Sydney Hoang, OTFullerton, CA 928311659006302
- Cherlene Hung, MS, OTR/LFullerton, CA 928311831799485
- Pooja ShahFullerton, CA 928311699074377
- Abelardo TorresFullerton, CA 928311124416532
Common questions
What is Diana Bystry's NPI number?
Diana Bystry's National Provider Identifier (NPI) is 1770222424, issued on Jun 1, 2022. An NPI identifies a provider in billing; it is not a license.
Where is Diana Bystry located?
The NPPES record lists a practice address at 1510 E Commonwealth Ave, Fullerton, CA, 92831. Phone: (216) 772-1030. Providers update this record themselves, so call before visiting.
How can I verify Diana Bystry's license?
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. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
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.