Quick answers
- Where does Kathryn A. Sullivan see patients?
- Medicare's clinician data lists 1 practice location in Orange, CA. Call before your visit to confirm the address.
- What is Kathryn A. Sullivan's specialty?
- Medicare lists Qualified Audiologist as the primary specialty.
- Does Kathryn A. Sullivan accept Medicare assignment?
- Yes. Medicare's clinician data says Kathryn A. Sullivan 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 Kathryn A. Sullivan?
- (714) 456-5731, as listed in official Medicare / NPI Registry data.
- What is Kathryn A. Sullivan's NPI number?
- 1225016744. 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 Kathryn A. Sullivan is enrolled with Medicare (CMS data updated 2026-10-02).
- 101 the City Dr SOrange, CA 92868 (714) 456‑5731
Group practices
Medicare enrollment lists Kathryn A. Sullivan as a member of this group (CMS data updated 2026-10-02).
- University Head and Neck Surgeons27 clinicians in the group
Specialties
- Qualified Audiologistprimary
Other audiologists in Orange
Clinicians with the same Medicare primary specialty in Orange, CA — not a recommendation.
Clinician information
| Credential | AU |
|---|---|
| Graduation year | 2008 |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1225016744 |
| 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