Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.
NPIDirectory

Kristin Elise Oliver Zerwa, OD

Individual provider Optometrist · NPI 1801440854

Kristin Elise Oliver Zerwa, OD is registered under Optometry in Saline, Michigan. Graduated from Illinois College of Optometry at Chicago in 2019, 7 years ago. Practices with Bennett Optometry LLC, a 17-clinician group, works from 5 locations and accepts Medicare assignment. Licensed in Michigan.

Years since qualifying
7
Trained at
Illinois College of Optometry at Chicago
Licensed in
MI
In the registry since
2019
What do these letters mean?
OD — Doctor of Optometry
An optometrist: examines eyes, prescribes glasses and contacts, and treats many eye conditions.

See every abbreviation used in this directory →

Claim this listing Report a problem Suggest an edit

Practice location Address checks out

557 E Michigan Ave
Saline, MI 48176-1588
Phone: (734) 429-4885
Fax: (734) 429-2389
Show map & directions

Directions in Google Maps · Apple Maps · OpenStreetMap

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (4)

  • 117 S Main St, Ann Arbor, MI 48104-1902 — (734) 665-5306
  • 111 S Main St, Ann Arbor, MI 48104-1902 — (734) 665-5310
  • 2623 Plymouth Rd, Ann Arbor, MI 48105-2468 — (734) 930-2373
  • 138 W Chicago Blvd, Tecumseh, MI 49286-1553 — (517) 423-2148

Specialties & licences

Optometrist (primary) Taxonomy 152W00000X · Licence 4901005396 (MI)

Record details

NPI number1801440854
Entity typeIndividual (Type 1)
GenderFemale
Credentials OD
Sole proprietorNo
NPI enumeratedJuly 29, 2019
Last updated in NPPESAugust 25, 2023
Certification dateAugust 25, 2023

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyOPTOMETRY
Medical schoolILLINOIS COLLEGE OF OPTOMETRY AT CHICAGO
Graduated 2019 (7 years in practice)
Group practice Bennett Optometry Llc — 17 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients25
Services billed 44 a service is one billed item, such as a visit, a test or a procedure
Average patient age75

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Payments from drug and device companies, 2025

Drug and device makers are required by federal law (the Physician Payments Sunshine Act) to report what they pay or give to clinicians, and CMS publishes the reports as Open Payments. This is the 2025 program year. A report is a record of a payment, not an allegation of anything, and many are small items such as meals. Only general payments are listed here; research payments and ownership or investment interests are reported separately by CMS and are not shown.

Food and Beverage $400 10 payments · a meal or drink at a meeting or visit, not a fee

Each amount is the sum of what companies reported for that kind of payment in 2025, rounded to the dollar. Not all of it is income to the clinician: a meal is not a fee, a charitable contribution goes to a charity, and a royalty or an acquisition payment is not a salary.

Check a report, or dispute one, at the source in CMS’s own tool, Open Payments. Corrections go through CMS’s dispute process. This site removes a home address on request and asks for no proof, because that is privacy; it will not remove an accurate payment report on request, because that is a statutory public disclosure.

Colleagues at Bennett Optometry LLC

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 17 clinicians in the practice; 12 are shown here.

Other providers in Saline