Quick answers
- Does Maria G. Grammer accept Medicare assignment?
- Yes. Medicare's clinician data says Maria G. Grammer 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.
- How many Medicare patients does Maria G. Grammer see?
- In 2024, CMS data shows 16 Original Medicare patients and 20 services for Maria G. Grammer. This counts Original Medicare only and measures volume, not quality.
- What is Maria G. Grammer's NPI number?
- 1790454437. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Medicare activity in 2024
Official CMS public-use data for Maria G. Grammer, data year 2024 (released May 21, 2026). It covers Original Medicare (fee-for-service) patients only, not Medicare Advantage or other insurance. It shows volume, not quality or outcomes. CMS hides any count of 10 or fewer patients.
| Original Medicare patients | 16 |
|---|---|
| Services billed to Medicare | 20 |
| Different services or procedures | 13 |
| Participating Medicare provider | Yes |
| Average age of these patients | 79 |
Chronic conditions among these patients
Share of this clinician’s Original Medicare patients with each condition, as published by CMS (it describes the patients, not the care given).
- High blood pressure75%
- Arthritis75%
Hospitals where Maria G. Grammer works
Medicare's Facility Affiliation Data lists Maria G. Grammer 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.
- HCA Florida Memorial HospitalJacksonville, FL · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 100179
Practice locations
Addresses where Maria G. Grammer is enrolled with Medicare (CMS data updated October 2, 2026).
- 1887 Kingsley Ave, Suite 1900Orange Park, FL 32073 (904) 276‑2549
- 3625 University Blvd SJacksonville, FL 32216 (904) 702‑6111
- 3627 University Blvd S, Suite 305Jacksonville, FL 32216 (904) 596‑0760
Group practices
Medicare enrollment lists Maria G. Grammer as a member of this group (CMS data updated October 2, 2026).
- Florida Trauma Services LLC89 clinicians in the group
Specialties
- Physician Assistantprimary
Other physician assistants in Orange Park
Clinicians with the same Medicare primary specialty in Orange Park, FL — not a recommendation.
Other clinicians in Florida Trauma Services LLC
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Graduation year | 2021 |
|---|---|
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1790454437 |
| 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
- Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
- 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