Quick answers
- Where does Mark Henderson see patients?
- Medicare's clinician data lists 2 practice locations, including Phoenix, AZ and Miami Lakes, FL. Call before your visit to confirm the address.
- What is Mark Henderson's specialty?
- Medicare lists Emergency Medicine as the primary specialty.
- Does Mark Henderson accept Medicare assignment?
- Yes. Medicare's clinician data says Mark Henderson 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.
- Does Mark Henderson offer telehealth?
- Medicare's clinician data says Mark Henderson offers telehealth services. Ask the office which visits can be done by video or phone.
- What is the phone number for Mark Henderson?
- (844) 933-1911, as listed in official Medicare / NPI Registry data.
- What is Mark Henderson's NPI number?
- 1255372868. 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 Henderson is enrolled with Medicare (CMS data updated 2026-10-02).
- 4600 E Washington St, Suite 300Phoenix, AZ 85034 (844) 933‑1911
- 7900 Oak Ln, Suite 400Miami Lakes, FL 33016 (203) 350‑2116
Group practices
Medicare enrollment lists Mark Henderson as a member of this group (CMS data updated 2026-10-02).
- MD Ally Services PA23 clinicians in the group
Specialties
- Emergency Medicineprimary
Other emergency medicine doctors in Phoenix
Clinicians with the same Medicare primary specialty in Phoenix, AZ — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Louisiana State University School Of Medicine In New Orleans |
| Graduation year | 1996 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1255372868 |
| 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