Quick answers
- Does Jeffrey S. Williams Jr. accept Medicare assignment?
- Yes. Medicare's clinician data says Jeffrey S. Williams Jr. 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 Jeffrey S. Williams Jr. see?
- In 2024, CMS data shows 582 Original Medicare patients and 13,273 services for Jeffrey S. Williams Jr.. This counts Original Medicare only and measures volume, not quality.
- What is Jeffrey S. Williams Jr.'s NPI number?
- 1396945143. 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 Jeffrey S. Williams Jr., 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 | 582 |
|---|---|
| Services billed to Medicare | 13,273 |
| Different services or procedures | 29 |
| Participating Medicare provider | Yes |
| Average age of these patients | 70 |
Most frequent services
- Photography of content of eyes (92285)1,204 services
- Photography of the retina (92250)1,202 services
- Imaging of front third of eye (92132)1,182 services
- Ct scan of cornea (92025)1,170 services
- Ultrasound scan of cornea to determine thickness (76514)1,101 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 pressure66%
- Arthritis41%
- Anxiety29%
- Diabetes27%
- Ischemic heart disease20%
Practice locations
Addresses where Jeffrey S. Williams Jr. is enrolled with Medicare (CMS data updated October 2, 2026). The first 5 of 6; the Medicare profile lists all.
- 1224 Ostrander AveRiverhead, NY 11901 (631) 727‑2858
- 1721 N Ocean Ave, Suite AMedford, NY 11763 (631) 732‑0822
- 433 Plandome RdManhasset, NY 11030 (516) 627‑0208
- 44210 County Rd, 48 Suite 1Southold, NY 11971 (631) 765‑3092
- 6130 A 190th StFresh Meadows, NY 11365 (771) 845‑4848
Group practices
Medicare enrollment lists Jeffrey S. Williams Jr. as a member of these groups (CMS data updated October 2, 2026).
- Sound Vision Care, Inc6 clinicians in the group
- Svc of Riverhead LLC4 clinicians in the group
- Svc of Southold LLC3 clinicians in the group
- Svc of Coram LLC2 clinicians in the group
- Svc of Fresh Meadows LLC2 clinicians in the group
- Svc of Manhasset LLC2 clinicians in the group
Specialties
- Optometryprimary
Other optometrists in Riverhead
Clinicians with the same Medicare primary specialty in Riverhead, NY — not a recommendation.
Other clinicians in Sound Vision Care, Inc
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | OD |
|---|---|
| Optometry school | Ohio State University - College Of Optometry |
| Graduation year | 2007 (19 years since optometry school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1396945143 |
| 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