Ryan Chadderton, PSYD.
NPI 1609998335 · Marriage & Family Therapist · Garden Grove, CA
Ryan Chadderton, PSYD. is a Marriage & Family Therapist provider in Garden Grove, CA (NPI 1609998335).
Provider details
- NPI number
- 1609998335
- Entity type
- Individual
- Primary specialty
- Marriage & Family TherapistBehavioral Health & Social Service Providers
- Credential
- PSYD.
- Sex
- Male
- Sole proprietor
- No
Specialties & taxonomies
Behavioral Health & Social Service Providers
- Psychologist103T00000X
Behavioral Health & Social Service Providers
- Rehabilitation Practitioner225400000X
Respiratory, Developmental, Rehabilitative and Restorative Service Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
19 yrs in NPPES registry
- Profile completeness38% of score
83% of core fields populated
- Practice footprint23% of score
1 documented practice location
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
Practice location
Mailing address
Registry dates
- Enumerated
- 2007-04-04
- Last updated
- 2025-11-20
- Certified
- 2025-11-20
Frequently asked questions
- What is Ryan Chadderton's NPI number?
- Ryan Chadderton's National Provider Identifier (NPI) is 1609998335, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Ryan Chadderton's specialty?
- Ryan Chadderton is listed in the NPPES registry with a primary specialty of Marriage & Family Therapist (Behavioral Health & Social Service Providers).
- Where is Ryan Chadderton located?
- Ryan Chadderton's practice location on file with NPPES is 10331 Stanford Ave, Garden Grove, CA 92840-6351.
- What is Ryan Chadderton's phone number?
- The practice phone number listed in the NPPES registry for Ryan Chadderton is (714) 663-6391.
- Is Ryan Chadderton's NPI active?
- Yes — Ryan Chadderton's NPI (1609998335) is active in the NPPES registry as of the last update on 2025-11-20.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.