Quick answers
- Where does Mark D. Callender see patients?
- Medicare's clinician data lists 2 practice locations, including Baton Rouge, LA and Gonzales, LA. Call before your visit to confirm the address.
- What is Mark D. Callender's specialty?
- Medicare lists Physician Assistant as the primary specialty.
- Does Mark D. Callender accept Medicare assignment?
- Yes. Medicare's clinician data says Mark D. Callender 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 Mark D. Callender?
- (225) 927-5663, as listed in official Medicare / NPI Registry data.
- What is Mark D. Callender's NPI number?
- 1942406616. 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 Mark D. Callender is enrolled with Medicare (CMS data updated 2026-10-02).
- 10154 Jefferson HwyBaton Rouge, LA 70809 (225) 927‑5663
- 721 N Burnside Ave, Suite DGonzales, LA 70737 (225) 927‑5663
Group practices
Medicare enrollment lists Mark D. Callender as a member of this group (CMS data updated 2026-10-02).
- Louisiana Dermatology Associates, LLC10 clinicians in the group
Specialties
- Physician Assistantprimary
Other physician assistants in Baton Rouge
Clinicians with the same Medicare primary specialty in Baton Rouge, LA — not a recommendation.
Clinician information
| Credential | PA |
|---|---|
| Graduation year | 2000 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1942406616 |
| 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