Quick answers
- Does Kathleen R. Van Valkenburg accept Medicare assignment?
- Yes. Medicare's clinician data says Kathleen R. Van Valkenburg 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 Kathleen R. Van Valkenburg see?
- In 2024, CMS data shows 783 Original Medicare patients and 1,966 services for Kathleen R. Van Valkenburg. This counts Original Medicare only and measures volume, not quality.
- What is Kathleen R. Van Valkenburg's NPI number?
- 1316037369. 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 Kathleen R. Van Valkenburg, 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 | 783 |
|---|---|
| Services billed to Medicare | 1,966 |
| Different services or procedures | 33 |
| Participating Medicare provider | Yes |
| Average age of these patients | 75 |
Most frequent services
- Established patient complete exam of visual system (92014)512 services
- Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)323 services
- Established patient problem focused exam of visual system (92012)151 services
- Exam of visual field with extended testing (92083)143 services
- Imaging of retina (92134)138 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 pressure73%
- Arthritis48%
- Diabetes27%
- Ischemic heart disease26%
- Osteoporosis21%
Practice locations
Addresses where Kathleen R. Van Valkenburg is enrolled with Medicare (CMS data updated October 2, 2026).
- 260 E Middle Country Rd, Suite 201Smithtown, NY 11787 (631) 265‑8780
Group practices
Medicare enrollment lists Kathleen R. Van Valkenburg as a member of this group (CMS data updated October 2, 2026).
- Sight Medical Doctors PLLC115 clinicians in the group
Specialties
- Ophthalmologyprimary
Other ophthalmologists in Smithtown
Clinicians with the same Medicare primary specialty in Smithtown, NY — not a recommendation.
Other clinicians in Sight Medical Doctors PLLC
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | New York University School Of Medicine |
| Graduation year | 1987 (39 years since medical school) |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1316037369 |
| 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