Quick answers
- Does Kirsten S. Winter accept Medicare assignment?
- Yes. Medicare's clinician data says Kirsten S. Winter 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 Kirsten S. Winter see?
- In 2024, CMS data shows 281 Original Medicare patients and 439 services for Kirsten S. Winter. This counts Original Medicare only and measures volume, not quality.
- What is Kirsten S. Winter's NPI number?
- 1629710942. 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 Kirsten S. Winter, 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 | 281 |
|---|---|
| Services billed to Medicare | 439 |
| Different services or procedures | 26 |
| Participating Medicare provider | Yes |
| Average age of these patients | 73 |
Most frequent services
- New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more (99203)101 services
- Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)89 services
- New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)41 services
- Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more (99215)26 services
- Imaging of retina (92134)23 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 cholesterol73%
- High blood pressure62%
- Arthritis60%
- Anxiety31%
- Ischemic heart disease22%
- Diabetes21%
Practice locations
Addresses where Kirsten S. Winter is enrolled with Medicare (CMS data updated October 2, 2026).
- 99 US Route 1 Byp, Suite AKittery, ME 03904 (207) 439‑0410
Group practices
Medicare enrollment lists Kirsten S. Winter as a member of this group (CMS data updated October 2, 2026).
- Kittery Optometric Associates, PLLC8 clinicians in the group
Specialties
- Optometryprimary
Other optometrists in Kittery
Clinicians with the same Medicare primary specialty in Kittery, ME — not a recommendation.
Other clinicians in Kittery Optometric Associates, PLLC
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | OD |
|---|---|
| Optometry school | State University Of New York - State College Optometry |
| Graduation year | 2022 (4 years since optometry school) |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1629710942 |
| 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