Quick answers
- Where does James R. Knowles see patients?
- Medicare's clinician data lists 1 practice location in Beavercreek, OH. Call before your visit to confirm the address.
- What is James R. Knowles's specialty?
- Medicare lists Ophthalmology as the primary specialty.
- Does James R. Knowles accept Medicare assignment?
- Yes. Medicare's clinician data says James R. Knowles accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of 2026-10-02. Ask the office to confirm before your visit.
- What is the phone number for James R. Knowles?
- (937) 427-2020, as listed in official Medicare / NPI Registry data.
- What is James R. Knowles's NPI number?
- 1053306001. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Practice locations
Addresses where James R. Knowles is enrolled with Medicare (CMS data updated 2026-10-02).
- 4235 Indian Ripple Rd, Suite 100Beavercreek, OH 45440 (937) 427‑2020
Group practices
Medicare enrollment lists James R. Knowles as a member of this group (CMS data updated 2026-10-02).
- Stahl Vision Inc4 clinicians in the group
Specialties
- Ophthalmologyprimary
Other ophthalmologists in Beavercreek
Clinicians with the same Medicare primary specialty in Beavercreek, OH — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Mayo Medical School |
| Graduation year | 1984 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1053306001 |
| 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 2026-10-02, retrieved 2026-10-29
- 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