Nathan Fierheller
NPI 1114443215 · Clinical Social Worker · Littleton, CO
Enrolled with Medicare as Practitioner - Clinical Social Worker · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Nathan Fierheller is a Clinical Social Worker provider in Littleton, CO (NPI 1114443215).
Provider details
- NPI number
- 1114443215
- Entity type
- Individual
- Primary specialty
- Clinical Social WorkerBehavioral Health & Social Service Providers
- Sex
- Male
- Sole proprietor
- No
- License
- CSW.09924904 (CO)
Specialties & taxonomies
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
8 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
- 2017-08-21
- Last updated
- 2017-08-21
Frequently asked questions
- What is Nathan Fierheller's NPI number?
- Nathan Fierheller's National Provider Identifier (NPI) is 1114443215, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Nathan Fierheller's specialty?
- Nathan Fierheller is listed in the NPPES registry with a primary specialty of Clinical Social Worker (Behavioral Health & Social Service Providers).
- Where is Nathan Fierheller located?
- Nathan Fierheller's practice location on file with NPPES is 6509 S Santa Fe Dr, Littleton, CO 80120-2910.
- What is Nathan Fierheller's phone number?
- The practice phone number listed in the NPPES registry for Nathan Fierheller is (303) 730-3303.
- Does Nathan Fierheller accept Medicare?
- Nathan Fierheller is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Nathan Fierheller's NPI active?
- Yes — Nathan Fierheller's NPI (1114443215) is active in the NPPES registry as of the last update on 2017-08-21.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.