Quick answers
- Which hospitals does Marnie Stefan Acta work at?
- Medicare's official clinician data lists Marnie Stefan Acta at 5 hospitals: AdventHealth Daytona Beach, AdventHealth Deland, Mease Dunedin Hospital, St Anthonys Hospital and St Josephs Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Marnie Stefan Acta see patients?
- Medicare's clinician data lists 7 practice locations, including St Petersburg, FL, Jacksonville, FL and Clearwater, FL. Call before your visit to confirm the address.
- What is Marnie Stefan Acta's specialty?
- Medicare lists Psychiatry as the primary specialty.
- Does Marnie Stefan Acta accept Medicare assignment?
- Yes. Medicare's clinician data says Marnie Stefan Acta 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 Marnie Stefan Acta offer telehealth?
- Medicare's clinician data says Marnie Stefan Acta offers telehealth services. Ask the office which visits can be done by video or phone.
- What is the phone number for Marnie Stefan Acta?
- (727) 532-1355, as listed in official Medicare / NPI Registry data.
- What is Marnie Stefan Acta's NPI number?
- 1336301753. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Marnie Stefan Acta works
Medicare's Facility Affiliation Data lists Marnie Stefan Acta at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- AdventHealth Daytona BeachDaytona Beach, FL · Acute Care Hospital · CCN 100068
- AdventHealth DelandDeland, FL · Acute Care Hospital · CCN 100045
- Mease Dunedin HospitalDunedin, FL · Acute Care Hospital · CCN 100043
- St Anthonys HospitalSaint Petersburg, FL · Acute Care Hospital · CCN 100067
- St Josephs HospitalTampa, FL · Acute Care Hospital · CCN 100075
Practice locations
Addresses where Marnie Stefan Acta is enrolled with Medicare (CMS data updated 2026-10-02). The first 5 of 7; the Medicare profile lists all.
- 1200 7th Ave NSt Petersburg, FL 33705 (727) 532‑1355
- 1301 Riverplace Blvd, Suite 800Jacksonville, FL 32207 (833) 351‑8255
- 300 Pinellas StClearwater, FL 33756 (727) 281‑9065
- 3001 W Dr Martin Luther King Jr BlvdTampa, FL 33607 (727) 532‑1355
- 4211 Van Dyke RdLutz, FL 33558 (727) 532‑1355
Group practices
Medicare enrollment lists Marnie Stefan Acta as a member of these groups (CMS data updated 2026-10-02).
- MCCD Fl Psychiatry Services PA801 clinicians in the group
- BayCare Behavioral Health Associates, LLC101 clinicians in the group
Specialties
- Psychiatryprimary
Other psychiatrists in St Petersburg
Clinicians with the same Medicare primary specialty in St Petersburg, FL — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 2008 |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1336301753 |
| 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
- Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated 2026-10-02, retrieved 2026-10-29
- 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