Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

Curtis Ronald Louwagie, MD

Individual provider Ophthalmology Physician · NPI 1689688897

Curtis Ronald Louwagie, MD practises Ophthalmology in Marshall, Minnesota. Graduated from University of Minnesota Medical School in 2005, 21 years ago. Practices with Avera Marshall, a 100-clinician group and accepts Medicare assignment. Licensed in Minnesota.

Years since qualifying
21
Trained at
University of Minnesota Medical School
Licensed in
MN
In the registry since
2006
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

300 S Bruce St Avera Marshall Southwest Ophthalmology
Marshall, MN 56258-1934 Not confirmed with CMS for 11 years — call before visiting
Phone: (507) 537-1427
Fax: (507) 537-1742
Show map & directions

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

Specialties & licences

Ophthalmology Physician (primary) Taxonomy 207W00000X · Licence 48686 (MN)

Record details

NPI number1689688897
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJuly 27, 2006
Last updated in NPPESMarch 9, 2015

Medicare enrollment

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

Medicare specialtyOPHTHALMOLOGY
Medical schoolUNIVERSITY OF MINNESOTA MEDICAL SCHOOL
Graduated 2005 (21 years in practice)
Group practice Avera Marshall — 100 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations3 on file with Medicare

Procedures

From CMS Care Compare, which counts the procedures a clinician billed to Original Medicare and Medicare Advantage over a recent 12-month period. CMS reports a fixed list of common procedures, so this is not everything the clinician does. Counts of 10 or fewer are given as a range, because CMS withholds small numbers.

Cataract surgery 89 times · 73rd percentile

The percentile compares how often this clinician performed the procedure with other clinicians who performed it, as CMS calculates it. It measures volume, not outcomes or skill.

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 patients190
Services billed 4,687 a service is one billed item, such as a visit, a test or a procedure
Average patient age79

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.

Charitable Contribution $1,050 1 payment · a donation to a charity; the money goes to the charity, not to the clinician

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.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician. Those with a page here are linked.

  • Avera Granite Falls Hospital · Granite Falls, MN
  • Chippewa County Hospital Hospital · Montevideo, MN · listed as Chippewa County Montevideo Hospital Dmerc
  • Johnson Memorial Hospital Hospital · Dawson, MN · listed as Johnson Memorial Health Services
  • Avera Marshall Regional Medical Ctr Hospital · Marshall, MN
  • Murray County Memorial Hospital Hospital · Slayton, MN

Colleagues at Avera Marshall

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 100 clinicians in the practice; 12 are shown here.

Other providers in Marshall