Quick answers
- Where does Mark St. John see patients?
- Medicare's clinician data lists 1 practice location in Palm Beach Gardens, FL. Call before your visit to confirm the address.
- What is Mark St. John's specialty?
- Medicare lists Clinical Social Worker as the primary specialty.
- Does Mark St. John accept Medicare assignment?
- Yes. Medicare's clinician data says Mark St. John 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 St. John offer telehealth?
- Medicare's clinician data says Mark St. John offers telehealth services. Ask the office which visits can be done by video or phone.
- What is the phone number for Mark St. John?
- (561) 843-3357, as listed in official Medicare / NPI Registry data.
- What is Mark St. John's NPI number?
- 1821487315. 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 St. John is enrolled with Medicare (CMS data updated 2026-10-02).
- 800 Village Sqaure Crossing, Suite 219Palm Beach Gardens, FL 33410 (561) 843‑3357
Group practices
Medicare enrollment lists Mark St. John as a member of this group (CMS data updated 2026-10-02).
- Healing Alternatives Psychotherapy, LLC2 clinicians in the group
Specialties
- Clinical Social Workerprimary
Other clinical social workers in Palm Beach Gardens
Clinicians with the same Medicare primary specialty in Palm Beach Gardens, FL — not a recommendation.
Clinician information
| Credential | CSW |
|---|---|
| Medical school | Washington University School Of Medicine |
| Graduation year | 2010 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1821487315 |
| 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