IndividualActive
Jillian Guelos
NPI 1316517899 · Behavior Technician · Fremont, CA
Jillian Guelos is a Behavior Technician provider in Fremont, CA (NPI 1316517899).
Provider details
- NPI number
- 1316517899
- Entity type
- Individual
- Primary specialty
- Behavior TechnicianBehavioral Health & Social Service Providers
- Sex
- Female
- Sole proprietor
- No
- License
- 46-1305562 (CA)
Specialties & taxonomies
Behavioral Health & Social 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
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
39210 State St Ste 204
Fremont, CA 94538-1456
Phone: (510) 894-4135
Approximate (ZIP-level) locationGet directions
Mailing address
1448 Lytelle St
Hayward, CA 94544-4350
Registry dates
- Enumerated
- 2021-06-28
- Last updated
- 2021-06-28
- Certified
- 2021-06-28
Frequently asked questions
- What is Jillian Guelos's NPI number?
- Jillian Guelos's National Provider Identifier (NPI) is 1316517899, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Jillian Guelos's specialty?
- Jillian Guelos is listed in the NPPES registry with a primary specialty of Behavior Technician (Behavioral Health & Social Service Providers).
- Where is Jillian Guelos located?
- Jillian Guelos's practice location on file with NPPES is 39210 State St Ste 204, Fremont, CA 94538-1456.
- What is Jillian Guelos's phone number?
- The practice phone number listed in the NPPES registry for Jillian Guelos is (510) 894-4135.
- Is Jillian Guelos's NPI active?
- Yes — Jillian Guelos's NPI (1316517899) is active in the NPPES registry as of the last update on 2021-06-28.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.