Physician Profile
Unclaimed ProfileAbout KNOWLES
James Roy Knowles, M.D. practices ophthalmology in Beavercreek, OH. James is a 1984 graduate of Mayo Medical School. Medicare claims data shows James provided 2,143 services to 1,506 patients.
Summarised automatically from public NPI registry and CMS Medicare data. Not written or reviewed by this provider. Claim this profile to replace it.
Education & Training
Areas of Expertise
Licensing & Certification
Source: NPPES NPI Registry
Contact Information
- (937) 427-2020
- Email not available
Practice Locations
4235 INDIAN RIPPLE RD STE 100
Beavercreek, OH 45440
Procedures Most Often Billed to Medicare
2,143 services · 1,506 patients · 12 distinct codes
| Procedure | Type | Code | Services |
|---|---|---|---|
| Removal of cataract with insertion of prosthetic lens | Procedure | 66984 |
301 |
| Removal of recurring cataract in lens capsule using a laser | Procedure | 66821 |
142 |
| Complex removal of cataract with insertion of prosthetic lens | Procedure | 66982 |
43 |
| Laser repair to improve eye fluid flow | Procedure | 65855 |
15 |
| Established patient complete exam of visual system | Treatment | 92014 |
498 |
| Measurement of corneal curvature and depth of eye | Treatment | 92136 |
357 |
| Exam of visual field with extended testing | Treatment | 92083 |
228 |
| New patient complete exam of visual system | Treatment | 92004 |
215 |
| Imaging of optic nerve | Treatment | 92133 |
180 |
| Imaging of retina | Treatment | 92134 |
31 |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Related providers
Connections drawn from the registry and from what providers have told us. A link here is not a referral or an endorsement.
Other ophthalmology specialists at this location 1
Same specialty, same street address — most likely the same department or group.
Related specialists at this location 1
Clinically related specialties at the same address — the people this provider most likely works alongside.
Also at this address 4
Providers at the same street address. Each files their own registry entry, so a shared practice often appears under several different names.
More connections — 32 related providers in 4 groups
Other ophthalmology specialists in Beavercreek 8
Same specialty, same city.
Trained at Mayo Medical School 8
Other providers in the same specialty who trained at the same institution.
Class of 1984 at Mayo Medical School 8
Providers who graduated from the same medical school in the same year.
Also performs Removal of cataract with insertion of prosthetic lens 8
Providers in OH who bill this service to Medicare most often.
Common questions
What does Dr. Knowles specialize in?
Dr. Knowles is an ophthalmology in Beavercreek, OH. This is the primary taxonomy recorded against the NPI in the federal registry, listed there as “OPHTHALMOLOGY”.
NPI registry
Where is Dr. Knowles located?
Dr. Knowles is listed at 4235 INDIAN RIPPLE RD STE 100, Beavercreek, OH 45440. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
What is Dr. Knowles's phone number?
The number on file is (937) 427-2020. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is the NPI for Dr. Knowles?
Dr. Knowles's National Provider Identifier is 1053306001. It is issued by the Centers for Medicare & Medicaid Services and is unique and permanent — it does not change if they move practice.
NPI registry
Where did Dr. Knowles go to medical school?
Dr. Knowles attended Mayo Medical School, graduating in 1984. This comes from the CMS National Downloadable File.
CMS public data
How much experience does Dr. Knowles have?
Dr. Knowles has 42 years experience. Calculated from a graduation year of 1984, reported in the CMS National Downloadable File.
CMS public data
What does Dr. Knowles do most often?
According to Medicare billing data, Dr. Knowles performs procedures including removal of cataract with insertion of prosthetic lens, removal of recurring cataract in lens capsule using a laser and complex removal of cataract with insertion of prosthetic lens; provides treatments such as established patient complete exam of visual system and measurement of corneal curvature and depth of eye, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Is Dr. Knowles's profile verified?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Knowles. If this is you, claiming it is free.
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Claim this profileProvider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.