Medical emergency?Emergency? Call 911. Nearest emergency roomsNearest ERs

Optometry

Sara Day, OD

Sees patients in Affton, MO · Chesterfield, MO · Arnold, MO … · Missouri

Summary

Sara Day, OD (Optometry) is enrolled with Medicare at 7 practice locations in Affton, MO, Chesterfield, MO and Arnold, MO and other places. NPI 1811090830. Medicare data says the clinician accepts Medicare assignment. Source: CMS National Downloadable File, updated 2026-10-02.

From official Medicare data

This page shows what Medicare's official clinician data says about Sara Day, joined by NPI number (data updated 2026-10-02). It is not a recommendation or a rating. Call the office or hospital to confirm before you go.

In a medical emergency, call 911.

At a glance

OptometryPrimary specialty
YesAccepts Medicare assignment
25Years since medical school (graduated 2001)
Illinois College Of Optometry At ChicagoMedical school
FemaleGender (as listed)
Clarkson Optometry IncGroup practice

Quick answers

Where does Sara Day see patients?
Medicare's clinician data lists 7 practice locations, including Affton, MO, Chesterfield, MO and Arnold, MO. Call before your visit to confirm the address.
What is Sara Day's specialty?
Medicare lists Optometry as the primary specialty.
Does Sara Day accept Medicare assignment?
Yes. Medicare's clinician data says Sara Day accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of 2026-10-02. Ask the office to confirm before your visit.
What is the phone number for Sara Day?
(314) 282-9050, as listed in official Medicare / NPI Registry data.
What is Sara Day's NPI number?
1811090830. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Practice locations

Addresses where Sara Day is enrolled with Medicare (CMS data updated 2026-10-02). The first 5 of 7; the Medicare profile lists all.

Group practices

Medicare enrollment lists Sara Day as a member of this group (CMS data updated 2026-10-02).

  • Clarkson Optometry Inc82 clinicians in the group

Specialties

Find other clinicians: Optometry, Missouri →

Other optometrists in Missouri

Clinicians with the same Medicare primary specialty in Missouri — not a recommendation.

All optometrists in Missouri →

Clinician information

CredentialOD
Medical schoolIllinois College Of Optometry At Chicago
Graduation year2001
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1811090830
CorrectionsReport 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

  1. National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
  2. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  3. Medicare Care Compare — official Medicare tool to look up clinicians