Quick answers
- Does Brendan F. Butler accept Medicare assignment?
- Yes. Medicare's clinician data says Brendan F. 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 Brendan F. Butler see?
- In 2024, CMS data shows 564 Original Medicare patients and 1,892 services for Brendan F. Butler. This counts Original Medicare only and measures volume, not quality.
- What is Brendan F. Butler's NPI number?
- 1821384694. 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 Brendan F. 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 | 564 |
|---|---|
| Services billed to Medicare | 1,892 |
| Different services or procedures | 40 |
| Participating Medicare provider | Yes |
| Average age of these patients | 76 |
Most frequent services
- Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)466 services
- Imaging of optic nerve (92133)232 services
- Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)176 services
- Exam of visual field with extended testing (92083)171 services
- Measurement of corneal curvature and depth of eye (92136)171 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 cholesterol73%
- High blood pressure68%
- Arthritis42%
- Diabetes34%
- Chronic kidney disease26%
- Ischemic heart disease22%
Hospitals where Brendan F. Butler works
Medicare's Facility Affiliation Data lists Brendan F. Butler at these hospitals (updated October 2, 2026). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians. Star rating and emergency services: Hospital General Information (CMS), data updated October 26, 2026.
- Bronson Methodist HospitalKalamazoo, MI · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 230017
Practice locations
Addresses where Brendan F. Butler is enrolled with Medicare (CMS data updated October 2, 2026).
- 1052 Gull RdKalamazoo, MI 49048 (269) 343‑1684
Group practices
Medicare enrollment lists Brendan F. Butler as a member of this group (CMS data updated October 2, 2026).
- Paragon Health PC53 clinicians in the group
Specialties
- Ophthalmologyprimary
Other ophthalmologists in Kalamazoo
Clinicians with the same Medicare primary specialty in Kalamazoo, MI — not a recommendation.
Other clinicians in Paragon Health PC
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | New York University School Of Medicine |
| Graduation year | 2011 (15 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1821384694 |
| 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
- Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated October 2, 2026, retrieved October 29, 2026
- Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
- 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