IndividualActive
John Arden, PHD
NPI 1841351053 · Psychologist · Petaluma, CA
John Arden, PHD is a Psychologist provider in Petaluma, CA (NPI 1841351053).
Provider details
- NPI number
- 1841351053
- Entity type
- Individual
- Primary specialty
- PsychologistBehavioral Health & Social Service Providers
- Credential
- PHD
- Sex
- Male
- Sole proprietor
- No
- License
- PSY9688 (CA)
Specialties & taxonomies
Behavioral Health & Social Service Providers
Profile Score
Detailed profile(90/100 index)
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
100% 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
3900 Lakeville Hwy
Petaluma, CA 94954-5698
Phone: (707) 765-3761
Approximate (ZIP-level) locationGet directions
Mailing address
2800 Bloomfield Rd
Sebastopol, CA 95472-5809
Registry dates
- Enumerated
- 2006-12-12
- Last updated
- 2007-07-08
Frequently asked questions
- What is John Arden's NPI number?
- John Arden's National Provider Identifier (NPI) is 1841351053, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is John Arden's specialty?
- John Arden is listed in the NPPES registry with a primary specialty of Psychologist (Behavioral Health & Social Service Providers).
- Where is John Arden located?
- John Arden's practice location on file with NPPES is 3900 Lakeville Hwy, Petaluma, CA 94954-5698.
- What is John Arden's phone number?
- The practice phone number listed in the NPPES registry for John Arden is (707) 765-3761.
- Is John Arden's NPI active?
- Yes — John Arden's NPI (1841351053) is active in the NPPES registry as of the last update on 2007-07-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.