Sydney Duncan
Mental Health Counselor · Santa Ana, CA
Sydney Duncan is a mental health counselor with a practice address in Santa Ana, California, and NPI 1053999243, issued on Mar 30, 2021. 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
- Sydney Duncan
- Primary taxonomy
- Mental Health Counselor 101YM0800X
- Practice location
- 18221 E 17TH St, Santa Ana, CA 92705
- Phone
- (714) 730-0930
- Enumerated
- Mar 30, 2021
- Record last updated
- Aug 23, 2021 (not updated in 5 years: call before relying on the address or phone)
- Entity
- Type 1 · individual
Also registered at 18221 E 17TH St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Hazel Cornejo CamachoMarriage & Family Therapist1821508904
- Catherine CortezDay Training/Habilitation Specialist1720974777
Verify Sydney Duncan 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
684 mental health counselor records list a practice address in Santa Ana
They are 684 of the 8,904 NPPES records with a practice address in Santa Ana, and 28,617 mental health counselor records in California. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
All 684 in Santa Ana → All 28,617 in California → Every provider in Santa Ana →
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Common questions
What is Sydney Duncan's NPI number?
Sydney Duncan's National Provider Identifier (NPI) is 1053999243, issued on Mar 30, 2021. An NPI identifies a provider in billing; it is not a license.
Where is Sydney Duncan located?
The NPPES record lists a practice address at 18221 E 17TH St, Santa Ana, CA, 92705. Phone: (714) 730-0930. Providers update this record themselves, so call before visiting.
How can I verify Sydney Duncan'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.