Simon Demisiew
Behavior Analyst · San Dimas, CA
Simon Demisiew is a behavior analyst with a practice address in San Dimas, California, and NPI 1730749185, issued on Jun 18, 2019. 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
- Simon Demisiew
- Primary taxonomy
- Behavior Analyst 103K00000X
- Practice location
- 677 Cliffside Dr, San Dimas, CA 91773
- Phone
- (626) 345-6455
- Enumerated
- Jun 18, 2019
- Record last updated
- Jun 18, 2019 (not updated in 7 years: call before relying on the address or phone)
- Entity
- Type 1 · individual
Also registered at 677 Cliffside Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Armaine De GuzmanBehavior Technician1972076602
- Jordan EverettBehavior Technician1538843388
Verify Simon Demisiew 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
23 behavior analyst records list a practice address in San Dimas
They are 23 of the 942 NPPES records with a practice address in San Dimas, and 20,348 behavior analyst records in California. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
All 23 in San Dimas → All 20,348 in California → Every provider in San Dimas →
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- Valerie Abaniel, M.A BCBAFullerton, CA1336377340
- Althea Abaqueta, BCBAFountain Valley, CA1619272853
- Stephanie AbarcaCorona, CA1124987656
- Vanessa AbarcaSan Jose, CA1558900910
- Josette Abbas, BCBAWalnut Creek, CA1407357916
Common questions
What is Simon Demisiew's NPI number?
Simon Demisiew's National Provider Identifier (NPI) is 1730749185, issued on Jun 18, 2019. An NPI identifies a provider in billing; it is not a license.
Where is Simon Demisiew located?
The NPPES record lists a practice address at 677 Cliffside Dr, San Dimas, CA, 91773. Phone: (626) 345-6455. Providers update this record themselves, so call before visiting.
How can I verify Simon Demisiew'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.