Quick answers
- Where does David Hattier see patients?
- Medicare's clinician data lists 2 practice locations, including Slidell, LA and Hammond, LA. Call before your visit to confirm the address.
- What is David Hattier's specialty?
- Medicare lists Mental Health Counselor as the primary specialty.
- Does David Hattier accept Medicare assignment?
- Yes. Medicare's clinician data says David Hattier 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 David Hattier?
- (985) 646-6406, as listed in official Medicare / NPI Registry data.
- What is David Hattier's NPI number?
- 1336311208. 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 David Hattier is enrolled with Medicare (CMS data updated 2026-10-02).
- 2331 Carey StSlidell, LA 70458 (985) 646‑6406
- 835 Pride Dr, Suite BHammond, LA 70401 (985) 543‑4730
Group practices
Medicare enrollment lists David Hattier as a member of this group (CMS data updated 2026-10-02).
- Florida Parishes Human Services Authority36 clinicians in the group
Specialties
- Mental Health Counselorprimary
Other mental health counselors in Slidell
Clinicians with the same Medicare primary specialty in Slidell, LA — not a recommendation.
Clinician information
| Graduation year | 1998 |
|---|---|
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1336311208 |
| 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