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Marcella Castellanos
NPI 1780203471 · Health Educator · Mill Valley, CA
Marcella Castellanos is a Health Educator provider in Mill Valley, CA (NPI 1780203471).
Provider details
- NPI number
- 1780203471
- Entity type
- Individual
- Primary specialty
- Health EducatorOther Service Providers
- Sex
- Female
- Sole proprietor
- Yes
Specialties & taxonomies
Other Service Providers
Profile Score
Established profile(62/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
6 yrs in NPPES registry
- Profile completeness38% of score
83% of core fields populated
- Practice footprint23% of score
2 documented practice locations
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
35 Miller Ave Ste 273
Mill Valley, CA 94941-1903
Phone: (415) 302-3651
Street-level locationGet directions
Mailing address
9596 Sierra Madre Ct
Soledad, CA 93960-3474
Additional practice locations (1)
- 35 Miller Ave Ste 273Mill Valley, CA 94941-1903Phone: (415) 302-3651
Registry dates
- Enumerated
- 2020-04-13
- Last updated
- 2020-04-13
- Certified
- 2020-04-13
Frequently asked questions
- What is Marcella Castellanos's NPI number?
- Marcella Castellanos's National Provider Identifier (NPI) is 1780203471, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Marcella Castellanos's specialty?
- Marcella Castellanos is listed in the NPPES registry with a primary specialty of Health Educator (Other Service Providers).
- Where is Marcella Castellanos located?
- Marcella Castellanos's practice location on file with NPPES is 35 Miller Ave Ste 273, Mill Valley, CA 94941-1903.
- What is Marcella Castellanos's phone number?
- The practice phone number listed in the NPPES registry for Marcella Castellanos is (415) 302-3651.
- Is Marcella Castellanos's NPI active?
- Yes — Marcella Castellanos's NPI (1780203471) is active in the NPPES registry as of the last update on 2020-04-13.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.