Quick answers
- Does Anna J. Mercer accept Medicare assignment?
- Yes. Medicare's clinician data says Anna J. Mercer accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
- What is Anna J. Mercer's NPI number?
- 1578830063. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Anna J. Mercer works
Medicare's Facility Affiliation Data lists Anna J. Mercer at these hospitals (updated October 2, 2026). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians. Star rating and emergency services: Hospital General Information (CMS), data updated October 26, 2026.
- Ascension St Vincent's Clay CountyMiddleburg, FL · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 100321
- Baptist Health Medical Center - JacksonvilleJacksonville, FL · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 100088
Practice locations
Addresses where Anna J. Mercer is enrolled with Medicare (CMS data updated October 2, 2026).
- 105 Whitehall DrSt Augustine, FL 32086 (904) 800‑7246
Group practices
Medicare enrollment lists Anna J. Mercer as a member of this group (CMS data updated October 2, 2026).
- Florida Institute of Pain Medicine LLC41 clinicians in the group
Specialties
- Physician Assistantprimary
Other physician assistants in St Augustine
Clinicians with the same Medicare primary specialty in St Augustine, FL — not a recommendation.
Other clinicians in Florida Institute of Pain Medicine LLC
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | PA |
|---|---|
| Graduation year | 2011 |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1578830063 |
| 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 October 2, 2026, retrieved October 29, 2026
- Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
- National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
- 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