Quick answers
- Does Diane T. Flanigen accept Medicare assignment?
- Yes. Medicare's clinician data says Diane T. Flanigen 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 Diane T. Flanigen see?
- In 2024, CMS data shows 499 Original Medicare patients and 786 services for Diane T. Flanigen. This counts Original Medicare only and measures volume, not quality.
- What is Diane T. Flanigen's NPI number?
- 1912985904. 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 Diane T. Flanigen, 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 | 499 |
|---|---|
| Services billed to Medicare | 786 |
| Different services or procedures | 15 |
| Participating Medicare provider | Yes |
| Average age of these patients | 77 |
Most frequent services
- Established patient complete exam of visual system (92014)376 services
- Exam of visual field with extended testing (92083)95 services
- Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)91 services
- Imaging of optic nerve (92133)88 services
- Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)66 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 cholesterol75%
- High blood pressure71%
- Arthritis46%
- Chronic kidney disease33%
- Ischemic heart disease27%
- Anxiety27%
Practice locations
Addresses where Diane T. Flanigen is enrolled with Medicare (CMS data updated October 2, 2026).
- 6333 Main St, Suite 1Williamsville, NY 14221 (716) 632‑3545
Group practices
Medicare enrollment lists Diane T. Flanigen as a member of this group (CMS data updated October 2, 2026).
- Ophthalmic Consultants of Long Island105 clinicians in the group
Specialties
- Ophthalmologyprimary
Other ophthalmologists in Williamsville
Clinicians with the same Medicare primary specialty in Williamsville, NY — not a recommendation.
Other clinicians in Ophthalmic Consultants of Long Island
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | State University Of New York At Buffalo School Of Medicine |
| Graduation year | 1984 (42 years since medical school) |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1912985904 |
| 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