Quick answers
- Does Matthew L. Karres accept Medicare assignment?
- Medicare's clinician data says Matthew L. Karres may accept Medicare assignment (as of October 2, 2026). Ask the office whether they accept it for your visit.
- How many Medicare patients does Matthew L. Karres see?
- In 2024, CMS data shows 72 Original Medicare patients and 205 services for Matthew L. Karres. This counts Original Medicare only and measures volume, not quality.
- What is Matthew L. Karres's NPI number?
- 1942738612. 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 Matthew L. Karres, 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 | 72 |
|---|---|
| Services billed to Medicare | 205 |
| Different services or procedures | 17 |
| Participating Medicare provider | Yes |
| Average age of these patients | 73 |
Most frequent services
- Established patient complete exam of visual system (92014)33 services
- Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)19 services
- Exam of visual field with extended testing (92083)12 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 pressure74%
- High cholesterol72%
- Arthritis51%
- Ischemic heart disease28%
- Diabetes25%
- Anxiety22%
Practice locations
Addresses where Matthew L. Karres is enrolled with Medicare (CMS data updated October 2, 2026).
- 6772 New Albany Condit RdNew Albany, OH 43054 (614) 933‑0575
Group practices
Medicare enrollment lists Matthew L. Karres as a member of this group (CMS data updated October 2, 2026).
- Central Ohio Vision and Eyecare, LLC3 clinicians in the group
Specialties
- Optometryprimary
Other optometrists in New Albany
Clinicians with the same Medicare primary specialty in New Albany, OH — not a recommendation.
Other clinicians in Central Ohio Vision and Eyecare, LLC
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | OD |
|---|---|
| Optometry school | Ohio State University - College Of Optometry |
| Graduation year | 2017 (9 years since optometry school) |
| Gender (as listed) | Male |
| Medicare assignment | May accept for some services |
| NPI (National Provider Identifier) | 1942738612 |
| 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