Quick answers
- Does Trey M. Butler accept Medicare assignment?
- Yes. Medicare's clinician data says Trey M. Butler 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 Trey M. Butler see?
- In 2024, CMS data shows 403 Original Medicare patients and 2,193 services for Trey M. Butler. This counts Original Medicare only and measures volume, not quality.
- What is Trey M. Butler's NPI number?
- 1639129422. 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 Trey M. Butler, 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 | 403 |
|---|---|
| Services billed to Medicare | 2,193 |
| Different services or procedures | 33 |
| Participating Medicare provider | Yes |
| Average age of these patients | 77 |
Most frequent services
- Imaging of retina (92134)342 services
- Extended exam of the back part of the eye with optic nerve drawing (92202)331 services
- Established patient complete exam of visual system (92014)326 services
- Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)174 services
- Extended exam of the back part of the eye with retinal drawing (92201)167 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 blood pressure75%
- High cholesterol75%
- Arthritis54%
- Diabetes38%
- Ischemic heart disease32%
- Chronic kidney disease30%
Practice locations
Addresses where Trey M. Butler is enrolled with Medicare (CMS data updated October 2, 2026).
- 2431 E 32nd StJoplin, MO 64804 (417) 781‑9000
Specialties
- Ophthalmologyprimary
Other ophthalmologists in Joplin
Clinicians with the same Medicare primary specialty in Joplin, MO — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of Oklahoma College Of Medicine |
| Graduation year | 1988 (38 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1639129422 |
| 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