Quick answers
- Does Estela V. Kieffer accept Medicare assignment?
- Yes. Medicare's clinician data says Estela V. Kieffer accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
- What is Estela V. Kieffer's NPI number?
- 1932214103. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Practice locations
Addresses where Estela V. Kieffer is enrolled with Medicare (CMS data updated October 2, 2026).
- 3911 Ambrosia St, Suite 200Castle Rock, CO 80109 (303) 788‑8888
Group practices
Medicare enrollment lists Estela V. Kieffer as a member of this group (CMS data updated October 2, 2026).
- Diehl Anesthesia Inc34 clinicians in the group
Specialties
Find other clinicians: Certified Registered Nurse Anesthetist (CRNA), Colorado →
Other nurse anesthetists in Castle Rock
Clinicians with the same Medicare primary specialty in Castle Rock, CO — not a recommendation.
Other clinicians in Diehl Anesthesia Inc
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | CNA |
|---|---|
| Graduation year | 2002 |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1932214103 |
| Corrections | Report an error or suggest an update → |
Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.
Sources
- National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians