Quick answers
- Does Sarah P. Henderson accept Medicare assignment?
- Yes. Medicare's clinician data says Sarah P. Henderson 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 Sarah P. Henderson see?
- In 2024, CMS data shows 317 Original Medicare patients and 1,116 services for Sarah P. Henderson. This counts Original Medicare only and measures volume, not quality.
- What is Sarah P. Henderson's NPI number?
- 1558882712. 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 Sarah P. Henderson, 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 | 317 |
|---|---|
| Services billed to Medicare | 1,116 |
| Different services or procedures | 17 |
| Participating Medicare provider | Yes |
| Average age of these patients | 76 |
Most frequent services
- Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)213 services
- Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)188 services
- Exam of visual field with extended testing (92083)158 services
- Visit complexity inherent to evaluation and management associated with medical care services that serve as the continuing focal point for all needed health care services and/or with medical care services that are part of ongoing care related to a patient's (G2211)155 services
- Imaging of optic nerve (92133)144 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 cholesterol67%
- High blood pressure57%
- Arthritis31%
- Osteoporosis21%
- Depression20%
- Diabetes18%
Practice locations
Addresses where Sarah P. Henderson is enrolled with Medicare (CMS data updated October 2, 2026).
- 1412 SW 43rd St, Suite 310Renton, WA 98057 (425) 235‑1200
- 795 N 5th AveSequim, WA 98382 (360) 683‑2010
- 9800 4th Ave NESeattle, WA 98115 (206) 527‑7100
Group practices
Medicare enrollment lists Sarah P. Henderson as a member of these groups (CMS data updated October 2, 2026).
- Kaiser Foundation Health Plan of Washington1,526 clinicians in the group
- Sight Partners Physicians PC59 clinicians in the group
Specialties
- Optometryprimary
Other optometrists in Renton
Clinicians with the same Medicare primary specialty in Renton, WA — not a recommendation.
Other clinicians in Kaiser Foundation Health Plan of Washington
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | OD |
|---|---|
| Optometry school | Southern College Of Optometry |
| Graduation year | 2017 (9 years since optometry school) |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1558882712 |
| 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