Quick answers
- Where does Gretchen A. Ronquillo see patients?
- Medicare's clinician data lists 8 practice locations, including Parker, CO, Aurora, CO and Irvine, CA. Call before your visit to confirm the address.
- What is Gretchen A. Ronquillo's specialty?
- Medicare lists Nurse Practitioner as the primary specialty.
- Does Gretchen A. Ronquillo accept Medicare assignment?
- Yes. Medicare's clinician data says Gretchen A. Ronquillo accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of 2026-10-02. Ask the office to confirm before your visit.
- What is the phone number for Gretchen A. Ronquillo?
- (303) 643-0200, as listed in official Medicare / NPI Registry data.
- What is Gretchen A. Ronquillo's NPI number?
- 1679303184. 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 Gretchen A. Ronquillo is enrolled with Medicare (CMS data updated 2026-10-02). The first 5 of 8; the Medicare profile lists all.
- 11960 Lioness Way, 140 Simonmed Imaging ParkerParker, CO 80134 (303) 643‑0200
- 14301 E Cedar Ave Unit E, Simonmed Imaging AuroraAurora, CO 80012 (720) 492‑1985
- 15775 Laguna Canyon Rd, Suite 140Irvine, CA 92618 (949) 522‑8120
- 24 Pacific GrvIrvine, CA 92602 (480) 306‑6949
- 7903 S Broadway A, Simonmed Imaging LittletonLittleton, CO 80122 (720) 449‑8800
Group practices
Medicare enrollment lists Gretchen A. Ronquillo as a member of these groups (CMS data updated 2026-10-02).
- Smi Imaging LLC384 clinicians in the group
- Simonmed Imaging Florida LLC317 clinicians in the group
- Health Diagnostics of California a Professional Corporation183 clinicians in the group
Specialties
- Nurse Practitionerprimary
Other nurse practitioners in Parker
Clinicians with the same Medicare primary specialty in Parker, CO — not a recommendation.
Clinician information
| Credential | NP |
|---|---|
| Graduation year | 2021 |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1679303184 |
| 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 2026-10-02, retrieved 2026-10-29
- 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