Siobhan Chamoun
Clinical Psychologist · Los Angeles, CA
Siobhan Chamoun is a clinical psychologist with a practice address in Los Angeles, California, and NPI 1215484274, issued on Sep 7, 2016. Check the license (California PSY33018, 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.
- Name
- Siobhan Chamoun
- Primary taxonomy
- Clinical Psychologist 103TC0700X
- License number
- PSY33018 CA
Self-reported in NPPES; status is on the state search - Practice location
- 2898 Rowena Ave, Los Angeles, CA 90039
- Phone
- (323) 660-0728
- Enumerated
- Sep 7, 2016
- Record last updated
- May 17, 2022
- Entity
- Type 1 · individual
8 nearest clinical psychologist records → All 12,647 in California → Look up another NPI →
Also registered at 2898 Rowena Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Katie Enney, PSY.D.Psychologist1144776246
- Mario Prietto, L.C.S.W.Clinical Social Worker1306025648
- Anne Ruane, PSYDClinical Psychologist1316286099
- Justin Shubert, PSY.D.Clinical Psychologist1659689412
Verify Siobhan Chamoun in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license PSY33018Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Siobhan Chamoun among 12,647 clinical psychologist records in California
Siobhan Chamoun is one of 12,647 clinical psychologist 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 2016, is newer than 77% of them.
- NPI issued2016 · 77% of these records are older, 19% newer
- In a Medicare fileNo · 9% of these records are
- In the CMS Doctors and Clinicians fileNo · 19% of these records are
- Record last updated2022 · 63% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 103TC0700X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
1,268 clinical psychologist records list a practice address in Los Angeles
They are 1,268 of the 69,537 NPPES records with a practice address in Los Angeles, and 12,647 clinical psychologist records in California. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
All 12,647 in California → Every provider in Los Angeles → Clinical Psychologist nationwide →
The 8 clinical psychologist records with the nearest ZIP codes
- Elizabeth Christensen, PHDLos Angeles, CA 900391912941030
- Dina Daleo, PSY.D.Los Angeles, CA 900391639346208
- Richard Espinoza, PSY.D.Los Angeles, CA 900391215376538
- Martin Hsia, PSY.D.Los Angeles, CA 900391902131626
- Dorothea McArthur, PHDLos Angeles, CA 900391447346168
- Meredith Murphy, PH.D.Los Angeles, CA 900391720234933
- Franziska Reff, PSYDLos Angeles, CA 900391285968529
- Anne Ruane, PSYDLos Angeles, CA 900391316286099
Common questions
What is Siobhan Chamoun's NPI number?
Siobhan Chamoun's National Provider Identifier (NPI) is 1215484274, issued on Sep 7, 2016. An NPI identifies a provider in billing; it is not a license.
Where is Siobhan Chamoun located?
The NPPES record lists a practice address at 2898 Rowena Ave, Los Angeles, CA, 90039. Phone: (323) 660-0728. Providers update this record themselves, so call before visiting.
How can I verify Siobhan Chamoun's license?
NPPES lists California license number PSY33018, 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.
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.