Nancy Horstmann, PHD
NPI 1184669343 · Clinical Psychologist · Boulder, CO
Enrolled with Medicare as Practitioner - Clinical Psychologist · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Nancy Horstmann, PHD is a Clinical Psychologist provider in Boulder, CO (NPI 1184669343).
Provider details
- NPI number
- 1184669343
- Entity type
- Individual
- Primary specialty
- Clinical PsychologistBehavioral Health & Social Service Providers
- Credential
- PHD
- Sex
- Female
- Sole proprietor
- Yes
- License
- 1514 (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
20 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
- 2006-06-19
- Last updated
- 2013-08-07
Frequently asked questions
- What is Nancy Horstmann's NPI number?
- Nancy Horstmann's National Provider Identifier (NPI) is 1184669343, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Nancy Horstmann's specialty?
- Nancy Horstmann is listed in the NPPES registry with a primary specialty of Clinical Psychologist (Behavioral Health & Social Service Providers).
- Where is Nancy Horstmann located?
- Nancy Horstmann's practice location on file with NPPES is 4141 Arapahoe Ave, Boulder, CO 80303-1032.
- What is Nancy Horstmann's phone number?
- The practice phone number listed in the NPPES registry for Nancy Horstmann is (303) 447-0811.
- Does Nancy Horstmann accept Medicare?
- Nancy Horstmann is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Nancy Horstmann's NPI active?
- Yes — Nancy Horstmann's NPI (1184669343) is active in the NPPES registry as of the last update on 2013-08-07.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.