Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
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Mr. Ryan O Chadderton, PSYD

Individual provider Marriage & Family Therapist · NPI 1609998335

Mr. Ryan O Chadderton, PSYD is a Marriage & Family Therapist in Garden Grove, California. Licensed in California. Registered with an NPI since 2007.

Licensed in
CA
In the registry since
2007
Specialties on file
3
What do these letters mean?
PSYD — Doctor of Psychology
A doctoral psychologist trained primarily for clinical practice.

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Practice location Address checks out

10331 Stanford Ave
Garden Grove, CA 92840-6351
Phone: (714) 663-6391
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Marriage & Family Therapist (primary) Taxonomy 106H00000X · Licence 164428 (CA)
Psychologist Taxonomy 103T00000X (CA)
Rehabilitation Practitioner Taxonomy 225400000X

Record details

NPI number1609998335
Entity typeIndividual (Type 1)
GenderMale
Credentials PSYD
Sole proprietorNo
NPI enumeratedApril 4, 2007
Last updated in NPPESJuly 30, 2026
Certification dateJuly 30, 2026

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