Quick answers
- Does Marcia L. Williams accept Medicare assignment?
- Yes. Medicare's clinician data says Marcia L. Williams 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 Marcia L. Williams see?
- In 2024, CMS data shows 31 Original Medicare patients and 66 services for Marcia L. Williams. This counts Original Medicare only and measures volume, not quality.
- What is Marcia L. Williams's NPI number?
- 1063153880. 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 Marcia L. Williams, 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 | 31 |
|---|---|
| Services billed to Medicare | 66 |
| Different services or procedures | 11 |
| Participating Medicare provider | Yes |
| Average age of these patients | 73 |
Most frequent services
- Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)22 services
- Insertion of needle into vein for collection of blood sample (36415)13 services
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 cholesterol75%
- High blood pressure74%
- Diabetes45%
- Arthritis45%
- Chronic kidney disease39%
- Anxiety35%
Practice locations
Addresses where Marcia L. Williams is enrolled with Medicare (CMS data updated October 2, 2026).
- 3000 Gulf Breeze PkwyGulf Breeze, FL 32563 (850) 324‑9633
Group practices
Medicare enrollment lists Marcia L. Williams as a member of this group (CMS data updated October 2, 2026).
- Physician Services Group of Florida, LLC3 clinicians in the group
Specialties
- Nurse Practitionerprimary
Other nurse practitioners in Gulf Breeze
Clinicians with the same Medicare primary specialty in Gulf Breeze, FL — not a recommendation.
Other clinicians in Physician Services Group of Florida, LLC
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | NP |
|---|---|
| Graduation year | 2021 |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1063153880 |
| 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 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