IndividualActive
Sierra Hartfelder
NPI 1245195155 · Behavior Technician · Castle Rock, CO
Sierra Hartfelder is a Behavior Technician provider in Castle Rock, CO (NPI 1245195155).
Provider details
- NPI number
- 1245195155
- 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
Basic profile(47/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
Under 1 yr in 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
4284 Trail Boss Dr Ste 110
Castle Rock, CO 80104-7521
Phone: (720) 512-3970
Street-level locationGet directions
Mailing address
9411 Crestmore Way
Highlands Ranch, CO 80126-2726
Registry dates
- Enumerated
- 2025-12-23
- Last updated
- 2025-12-23
- Certified
- 2025-12-22
Frequently asked questions
- What is Sierra Hartfelder's NPI number?
- Sierra Hartfelder's National Provider Identifier (NPI) is 1245195155, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Sierra Hartfelder's specialty?
- Sierra Hartfelder is listed in the NPPES registry with a primary specialty of Behavior Technician (Behavioral Health & Social Service Providers).
- Where is Sierra Hartfelder located?
- Sierra Hartfelder's practice location on file with NPPES is 4284 Trail Boss Dr Ste 110, Castle Rock, CO 80104-7521.
- What is Sierra Hartfelder's phone number?
- The practice phone number listed in the NPPES registry for Sierra Hartfelder is (720) 512-3970.
- Is Sierra Hartfelder's NPI active?
- Yes — Sierra Hartfelder's NPI (1245195155) is active in the NPPES registry as of the last update on 2025-12-23.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.