Quick answers
- Does Kristin L. Obrien accept Medicare assignment?
- Yes. Medicare's clinician data says Kristin L. Obrien 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 Kristin L. Obrien see?
- In 2024, CMS data shows 656 Original Medicare patients and 1,191 services for Kristin L. Obrien. This counts Original Medicare only and measures volume, not quality.
- What is Kristin L. Obrien's NPI number?
- 1487800017. 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 Kristin L. Obrien, 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 | 656 |
|---|---|
| Services billed to Medicare | 1,191 |
| Different services or procedures | 18 |
| Participating Medicare provider | Yes |
| Average age of these patients | 75 |
Most frequent services
- Established patient complete exam of visual system (92014)437 services
- Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more (99212)307 services
- New patient complete exam of visual system (92004)81 services
- Imaging of optic nerve (92133)81 services
- Exam of visual field with extended testing (92083)77 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 pressure70%
- High cholesterol68%
- Arthritis34%
- Diabetes29%
- Ischemic heart disease19%
- Heart failure19%
Practice locations
Addresses where Kristin L. Obrien is enrolled with Medicare (CMS data updated October 2, 2026).
- 124 S Central AveSidney, MT 59270 (406) 482‑2609
Group practices
Medicare enrollment lists Kristin L. Obrien as a member of this group (CMS data updated October 2, 2026).
- Sidney Eye Care PLLC2 clinicians in the group
Specialties
- Optometryprimary
Other optometrists in Montana
Clinicians with the same Medicare primary specialty in Montana — not a recommendation.
Clinician information
| Credential | OD |
|---|---|
| Optometry school | Pacific University - College Of Optometry |
| Graduation year | 2008 (18 years since optometry school) |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1487800017 |
| 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