Claudia Viazzoli, PSY.D.
NPI 1487706131 · Psychologist · Mill Valley, CA
Claudia Viazzoli, PSY.D. is a Psychologist provider in Mill Valley, CA (NPI 1487706131).
Provider details
- NPI number
- 1487706131
- Entity type
- Individual
- Primary specialty
- PsychologistBehavioral Health & Social Service Providers
- Credential
- PSY.D.
- Sex
- Female
- Sole proprietor
- Yes
- License
- PSY19641 (CA)
Specialties & taxonomies
Behavioral Health & Social Service Providers
Behavioral Health & Social 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
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
Mailing address
Registry dates
- Enumerated
- 2007-01-16
- Last updated
- 2019-06-11
Frequently asked questions
- What is Claudia Viazzoli's NPI number?
- Claudia Viazzoli's National Provider Identifier (NPI) is 1487706131, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Claudia Viazzoli's specialty?
- Claudia Viazzoli is listed in the NPPES registry with a primary specialty of Psychologist (Behavioral Health & Social Service Providers).
- Where is Claudia Viazzoli located?
- Claudia Viazzoli's practice location on file with NPPES is 311 Miller Ave Ste L, Mill Valley, CA 94941-2897.
- What is Claudia Viazzoli's phone number?
- The practice phone number listed in the NPPES registry for Claudia Viazzoli is (415) 755-8084.
- Is Claudia Viazzoli's NPI active?
- Yes — Claudia Viazzoli's NPI (1487706131) is active in the NPPES registry as of the last update on 2019-06-11.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.