Curtis Louwagie, M.D.
NPI 1689688897 · Ophthalmology Physician · Marshall, MN
Enrolled with Medicare as Practitioner - Ophthalmology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Curtis Louwagie, M.D. is a Ophthalmology Physician provider in Marshall, MN (NPI 1689688897).
Provider details
- NPI number
- 1689688897
- Entity type
- Individual
- Primary specialty
- Ophthalmology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 48686 (MN)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
19 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
896 Medicare services, 2024 (ranked within specialty)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Imaging of Retina92134 | 264 | $41 |
| Injection of Drug Into Eye67028 | 206 | $132 |
| Established Patient Complete Exam of Visual System92014 | 195 | $128 |
| Removal of Cataract With Insertion of Prosthetic Lens66984 | 97 | $403 |
| Measurement of Corneal Curvature and Depth of Eye92136 | 55 | $46 |
| New Patient Complete Exam of Visual System92004 | 48 | $150 |
| Established Patient Problem Focused Exam of Visual System |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 18 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Latanoprost | 314 | 75 |
| Ketorolac Tromethamine | 197 | 95 |
| Dorzolamide Hcl/Timolol Maleatbrand: Dorzolamide-Timolol | 183 | 45 |
| Prednisolone Acetate | 120 | 60 |
| Timolol Maleate | 95 | 25 |
| Moxifloxacin Hclbrand: Moxifloxacin | 42 | 28 |
| Erythromycin Basebrand: Erythromycin | 33 | 16 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-07-27
- Last updated
- 2015-03-09
Frequently asked questions
- What is Curtis Louwagie's NPI number?
- Curtis Louwagie's National Provider Identifier (NPI) is 1689688897, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Curtis Louwagie's specialty?
- Curtis Louwagie is listed in the NPPES registry with a primary specialty of Ophthalmology Physician (Allopathic & Osteopathic Physicians).
- Where is Curtis Louwagie located?
- Curtis Louwagie's practice location on file with NPPES is 300 S Bruce St, Marshall, MN 56258-1934.
- What is Curtis Louwagie's phone number?
- The practice phone number listed in the NPPES registry for Curtis Louwagie is (507) 537-1427.
- Does Curtis Louwagie accept Medicare?
- Curtis Louwagie is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Curtis Louwagie's NPI active?
- Yes — Curtis Louwagie's NPI (1689688897) is active in the NPPES registry as of the last update on 2015-03-09.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.