Ann Haddenhorst, M.D.
NPI 1235134289 · Internal Medicine Physician · Colorado Springs, CO
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Ann Haddenhorst, M.D. is a Internal Medicine Physician provider in Colorado Springs, CO (NPI 1235134289).
Provider details
- NPI number
- 1235134289
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- No
- License
- 41561 (CO)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
21 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
- 2005-06-16
- Last updated
- 2020-03-19
- Certified
- 2020-03-19
Frequently asked questions
- What is Ann Haddenhorst's NPI number?
- Ann Haddenhorst's National Provider Identifier (NPI) is 1235134289, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Ann Haddenhorst's specialty?
- Ann Haddenhorst is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Ann Haddenhorst located?
- Ann Haddenhorst's practice location on file with NPPES is 175 S Union Blvd, Colorado Springs, CO 80910-3113.
- What is Ann Haddenhorst's phone number?
- The practice phone number listed in the NPPES registry for Ann Haddenhorst is (719) 633-5515.
- Does Ann Haddenhorst accept Medicare?
- Ann Haddenhorst is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Ann Haddenhorst's NPI active?
- Yes — Ann Haddenhorst's NPI (1235134289) is active in the NPPES registry as of the last update on 2020-03-19.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.