Quick answers
- Where does Cassie Costilow see patients?
- Medicare's clinician data lists 2 practice locations, including Spartanburg, SC and Greer, SC. Call before your visit to confirm the address.
- What is Cassie Costilow's specialty?
- Medicare lists Qualified Audiologist as the primary specialty.
- Does Cassie Costilow accept Medicare assignment?
- Yes. Medicare's clinician data says Cassie Costilow 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 Cassie Costilow?
- (864) 582-2900, as listed in official Medicare / NPI Registry data.
- What is Cassie Costilow's NPI number?
- 1124430780. 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 Cassie Costilow is enrolled with Medicare (CMS data updated 2026-10-02).
- 1095 Iron Ore RdSpartanburg, SC 29303 (864) 582‑2900
- 2755 S Hwy 14, Suite 2400Greer, SC 29650 (864) 582‑2900
Group practices
Medicare enrollment lists Cassie Costilow as a member of this group (CMS data updated 2026-10-02).
- Spartanburg Ear, Nose and Throat - Head and Neck Surgery, PA14 clinicians in the group
Specialties
- Qualified Audiologistprimary
Find other clinicians: Qualified Audiologist, South Carolina →
Other audiologists in Spartanburg
Clinicians with the same Medicare primary specialty in Spartanburg, SC — not a recommendation.
Clinician information
| Credential | AU |
|---|---|
| Medical school | Ohio University, College Of Osteopathic Medicine |
| Graduation year | 2014 |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1124430780 |
| 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