Quick answers
- Does Oliver G. Fischer accept Medicare assignment?
- Medicare's clinician data says Oliver G. Fischer may accept Medicare assignment (as of October 2, 2026). Ask the office whether they accept it for your visit.
- How many Medicare patients does Oliver G. Fischer see?
- In 2024, CMS data shows 377 Original Medicare patients and 8,827 services for Oliver G. Fischer. This counts Original Medicare only and measures volume, not quality.
- What is Oliver G. Fischer's NPI number?
- 1609238880. 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 Oliver G. Fischer, 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 | 377 |
|---|---|
| Services billed to Medicare | 8,827 |
| Different services or procedures | 37 |
| Participating Medicare provider | Yes |
| Average age of these patients | 77 |
Most frequent services
- Injection, faricimab-svoa, 0.1 mg (J2777)6,420 services
- Imaging of retina (92134)497 services
- Injection of drug into eye (67028)415 services
- Established patient complete exam of visual system (92014)288 services
- Injection, bevacizumab, 10 mg (J9035)204 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%
- Arthritis45%
- Diabetes33%
- Ischemic heart disease28%
- Chronic kidney disease23%
Practice locations
Addresses where Oliver G. Fischer is enrolled with Medicare (CMS data updated October 2, 2026).
- 7700 Cat Hollow Dr, Suite 202Round Rock, TX 78681
Specialties
- Ophthalmologyprimary
Other ophthalmologists in Round Rock
Clinicians with the same Medicare primary specialty in Round Rock, TX — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Rush Medical College Of Rush University |
| Graduation year | 2015 (11 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | May accept for some services |
| NPI (National Provider Identifier) | 1609238880 |
| 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