Quick answers
- Does Wendy-Ann L. Sylvester accept Medicare assignment?
- Yes. Medicare's clinician data says Wendy-Ann L. Sylvester 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 Wendy-Ann L. Sylvester see?
- In 2024, CMS data shows 69 Original Medicare patients and 113 services for Wendy-Ann L. Sylvester. This counts Original Medicare only and measures volume, not quality.
- What is Wendy-Ann L. Sylvester's NPI number?
- 1578504148. 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 Wendy-Ann L. Sylvester, 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 | 69 |
|---|---|
| Services billed to Medicare | 113 |
| Different services or procedures | 18 |
| Participating Medicare provider | Yes |
| Average age of these patients | 75 |
Most frequent services
- Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)54 services
- Automated urinalysis test (81003)16 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%
- Arthritis46%
- Diabetes32%
- Osteoporosis28%
- Cancer (breast, colorectal, lung, prostate, endometrial or leukemia/lymphoma)19%
Practice locations
Addresses where Wendy-Ann L. Sylvester is enrolled with Medicare (CMS data updated October 2, 2026).
- 111 S Westlake Blvd, Suite 110Westlake Village, CA 91362 (805) 557‑8177
- 166 N Moorpark RdThousand Oaks, CA 91360 (805) 371‑4499
- 359 Carmen DrCamarillo, CA 93010 (805) 914‑5592
- 701 N Wendy DrNewbury Park, CA 91320 (805) 375‑4400
Group practices
Medicare enrollment lists Wendy-Ann L. Sylvester as a member of this group (CMS data updated October 2, 2026).
- Exer Medical Corporation340 clinicians in the group
Specialties
- Family Practiceprimary
Other family doctors in Westlake Village
Clinicians with the same Medicare primary specialty in Westlake Village, CA — not a recommendation.
Other clinicians in Exer Medical Corporation
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Albert Einstein College Of Medicine Of Yeshiva University |
| Graduation year | 2000 (26 years since medical school) |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1578504148 |
| 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