Quick answers
- Does Cynthia L. Rivenson accept Medicare assignment?
- Yes. Medicare's clinician data says Cynthia L. Rivenson 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 Cynthia L. Rivenson see?
- In 2024, CMS data shows 46 Original Medicare patients and 87 services for Cynthia L. Rivenson. This counts Original Medicare only and measures volume, not quality.
- What is Cynthia L. Rivenson's NPI number?
- 1609089358. 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 Cynthia L. Rivenson, 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 | 46 |
|---|---|
| Services billed to Medicare | 87 |
| Different services or procedures | 6 |
| Participating Medicare provider | Yes |
| Average age of these patients | 75 |
Most frequent services
- Exam of visual field with extended testing (92083)39 services
- New patient complete exam of visual system (92004)32 services
- Established patient complete exam of visual system (92014)12 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 blood pressure75%
- High cholesterol75%
- Diabetes39%
- Arthritis39%
- Ischemic heart disease33%
- Chronic kidney disease33%
Practice locations
Addresses where Cynthia L. Rivenson is enrolled with Medicare (CMS data updated October 2, 2026).
- 5555 W Atlantic BlvdMargate, FL 33063 (561) 374‑3496
Group practices
Medicare enrollment lists Cynthia L. Rivenson as a member of this group (CMS data updated October 2, 2026).
- Lo and Rivenson, O.D., P.A.3 clinicians in the group
Specialties
- Optometryprimary
Other optometrists in Margate
Clinicians with the same Medicare primary specialty in Margate, FL — not a recommendation.
Other clinicians in Lo and Rivenson, O.D., P.A.
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | OD |
|---|---|
| Optometry school | Nova Southeastern College Of Osteo Medicine |
| Graduation year | 1999 (27 years since optometry school) |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1609089358 |
| 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