Sienna Robertson
NPI 1891368908 · Marriage & Family Therapist · Arroyo Grande, CA
Sienna Robertson is a Marriage & Family Therapist provider in Arroyo Grande, CA (NPI 1891368908).
Provider details
- NPI number
- 1891368908
- Entity type
- Individual
- Primary specialty
- Marriage & Family TherapistBehavioral Health & Social Service Providers
- Sex
- Female
- Sole proprietor
- Yes
- License
- 118887 (CA)
Specialties & taxonomies
Behavioral Health & Social Service Providers
- Mental Health Counselor101YM0800X
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
4 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
- 2021-07-19
- Last updated
- 2022-08-15
- Certified
- 2022-08-15
Frequently asked questions
- What is Sienna Robertson's NPI number?
- Sienna Robertson's National Provider Identifier (NPI) is 1891368908, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Sienna Robertson's specialty?
- Sienna Robertson is listed in the NPPES registry with a primary specialty of Marriage & Family Therapist (Behavioral Health & Social Service Providers).
- Where is Sienna Robertson located?
- Sienna Robertson's practice location on file with NPPES is 119 Vista Cir, Arroyo Grande, CA 93420-1619.
- What is Sienna Robertson's phone number?
- The practice phone number listed in the NPPES registry for Sienna Robertson is (805) 710-2163.
- Is Sienna Robertson's NPI active?
- Yes — Sienna Robertson's NPI (1891368908) is active in the NPPES registry as of the last update on 2022-08-15.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.