Quick answers
- Where does Katie Derbak see patients?
- Medicare's clinician data lists 2 practice locations, including Lake St Louis, MO and Wentzville, MO. Call before your visit to confirm the address.
- What is Katie Derbak's specialty?
- Medicare lists Mental Health Counselor as the primary specialty.
- Does Katie Derbak accept Medicare assignment?
- Yes. Medicare's clinician data says Katie Derbak 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 Katie Derbak?
- (636) 339-4475, as listed in official Medicare / NPI Registry data.
- What is Katie Derbak's NPI number?
- 1073254223. 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 Katie Derbak is enrolled with Medicare (CMS data updated 2026-10-02).
- 1310 Hrc Plaza DrLake St Louis, MO 63367 (636) 339‑4475
- 237 Creekside Office Dr, Ellie Mental HealthWentzville, MO 63385 (636) 202‑1412
Group practices
Medicare enrollment lists Katie Derbak as a member of this group (CMS data updated 2026-10-02).
- A W Stevenson LLC20 clinicians in the group
Specialties
- Mental Health Counselorprimary
Other mental health counselors in Lake St Louis
Clinicians with the same Medicare primary specialty in Lake St Louis, MO — not a recommendation.
Clinician information
| Graduation year | 2020 |
|---|---|
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1073254223 |
| 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