IndividualActive
Mary Sierra
NPI 1780219956 · Behavior Technician · San Jose, CA
Mary Sierra is a Behavior Technician provider in San Jose, CA (NPI 1780219956).
Provider details
- NPI number
- 1780219956
- Entity type
- Individual
- Primary specialty
- Behavior TechnicianBehavioral Health & Social Service Providers
- Sex
- Female
- Sole proprietor
- No
Specialties & taxonomies
Behavioral Health & Social Service Providers
Profile Score
Established profile(58/100 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
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
1887 Monterey Hwy Ste 225
San Jose, CA 95112-6192
Phone: (408) 706-6855
Street-level locationGet directions
Mailing address
16782 Von Karman Ave Ste 11
Irvine, CA 92606-2417
Registry dates
- Enumerated
- 2020-03-09
- Last updated
- 2020-03-09
- Certified
- 2020-03-09
Frequently asked questions
- What is Mary Sierra's NPI number?
- Mary Sierra's National Provider Identifier (NPI) is 1780219956, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mary Sierra's specialty?
- Mary Sierra is listed in the NPPES registry with a primary specialty of Behavior Technician (Behavioral Health & Social Service Providers).
- Where is Mary Sierra located?
- Mary Sierra's practice location on file with NPPES is 1887 Monterey Hwy Ste 225, San Jose, CA 95112-6192.
- What is Mary Sierra's phone number?
- The practice phone number listed in the NPPES registry for Mary Sierra is (408) 706-6855.
- Is Mary Sierra's NPI active?
- Yes — Mary Sierra's NPI (1780219956) is active in the NPPES registry as of the last update on 2020-03-09.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.