John Dietel
Occupational Therapist · Ontario, CA
John Dietel is an occupational therapist with a practice address in Ontario, California, and NPI 1104941640, issued on Mar 21, 2007. Check the license with the California board that licenses this profession; the federal record below is the public data PlainDoctor holds for this provider.
- Name
- John Dietel
- Primary taxonomy
- Occupational Therapist 225X00000X
- License numbers
- U1-0000690 DE
OC007485L PA
Self-reported in NPPES; status is on the state search - Practice location
- 1661 S Euclid Ave, Ontario, CA 91762
- Phone
- (909) 984-6713
- Enumerated
- Mar 21, 2007
- Record last updated
- Jan 27, 2023
- Entity
- Type 1 · individual
8 nearest occupational therapist records → All 9,244 in California → Look up another NPI →
Also registered at 1661 S Euclid Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Kyanguu NzuveOccupational Therapist1306665930
- Maria PamplonaOccupational Therapy Assistant1700586054
- Clarisa SuvaPhysical Therapy Assistant1689373532
- Carlos ValdesPhysical Therapy Assistant1710683719
- Jessica WillisPhysical Therapy Assistant1801585237
Verify John Dietel 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
John Dietel among 9,244 occupational therapist records in California
John Dietel 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 2007, is newer than 5% of them.
- NPI issued2007 · 5% of these records are older, 89% newer
- In a Medicare fileNo · 9% of these records are
- In the CMS Doctors and Clinicians fileNo · 10% of these records are
- Record last updated2023 · 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).
Occupational Therapist providers in California
There are 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 Ontario → Occupational Therapist nationwide →
The 8 occupational therapist records with the nearest ZIP codes
- Alyzah Dalnay, OTR/LOntario, CA 917621144920075
- Andrea Diaz, OTR/LOntario, CA 917621568329308
- Hannah Klein, OTR/LOntario, CA 917621437700739
- Charmaine Lim, OTOntario, CA 917621447843214
- Kyanguu NzuveOntario, CA 917621306665930
- Buenaventura Peralta, OTR/LOntario, CA 917621760089304
- Christina Uplinger, OTR/LOntario, CA 917621114666799
- Amber ZurekOntario, CA 917621104783950
Common questions
What is John Dietel's NPI number?
John Dietel's National Provider Identifier (NPI) is 1104941640, issued on Mar 21, 2007. An NPI identifies a provider in billing; it is not a license.
Where is John Dietel located?
The NPPES record lists a practice address at 1661 S Euclid Ave, Ontario, CA, 91762. Phone: (909) 984-6713. Providers update this record themselves, so call before visiting.
How can I verify John Dietel'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. 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.