Physician Profile
Unclaimed ProfileAbout CLAY
Based in Durant, OK, Gregory B. Clay, O.D., F.A.A.O is listed in the NPI registry under optometry. Gregory graduated from Southern College of Optometry in 1977. Gregory is also listed as specializing in optometrist. According to Medicare claims data, Gregory cared for 3,990 Medicare patients across 5,170 services.
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
- (580) 920-2020
- Email not available
Practice Locations
1901 UNIVERSITY BLVD.
Durant, OK 74701
Procedures Most Often Billed to Medicare
5,170 services · 3,990 patients · 17 distinct codes
| Procedure | Type | Code | Services |
|---|---|---|---|
| Removal of cataract with insertion of prosthetic lens | Procedure | 66984 |
49 |
| Photography of the retina | Treatment | 92250 |
669 |
| Established patient complete exam of visual system | Treatment | 92014 |
559 |
| Exam of visual field with extended testing | Treatment | 92083 |
530 |
| Extended exam involving color vision testing | Treatment | 92283 |
476 |
| Imaging of retina | Treatment | 92134 |
411 |
| Measurement of corneal pressure | Treatment | 92145 |
318 |
| Established patient problem focused exam of visual system | Treatment | 92012 |
310 |
| Imaging of front third of eye using a special microscope | Treatment | 92286 |
250 |
| Evaluation of eye adaptation to light and dark with interpretation and report | Treatment | 92284 |
237 |
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 optometry specialists in Durant 8
Same specialty, same city.
Trained at Southern College of Optometry 8
Other providers in the same specialty who trained at the same institution.
Class of 1977 at Southern College of Optometry 8
Providers who graduated from the same medical school in the same year.
More connections — 8 related providers in 1 group
Also performs Removal of cataract with insertion of prosthetic lens 8
Providers in OK who bill this service to Medicare most often.
Common questions
What kind of doctor is Dr. Clay?
Dr. Clay is an optometry in Durant, OK. This is the primary taxonomy recorded against the NPI in the federal registry, listed there as “OPTOMETRY”.
NPI registry
What is Dr. Clay's address?
Dr. Clay is listed at 1901 UNIVERSITY BLVD., Durant, OK 74701. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How can I make an appointment with Dr. Clay?
The number on file is (580) 920-2020. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is Dr. Clay's NPI number?
Dr. Clay's National Provider Identifier is 1023031994. 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. Clay train?
Dr. Clay attended Southern College of Optometry, graduating in 1977. This comes from the CMS National Downloadable File.
CMS public data
How long has Dr. Clay been practicing?
Dr. Clay has 49 years experience. Calculated from a graduation year of 1977, reported in the CMS National Downloadable File.
CMS public data
What procedures does Dr. Clay perform?
According to Medicare billing data, Dr. Clay performs procedures including removal of cataract with insertion of prosthetic lens; provides treatments such as photography of the retina and established patient complete exam of visual system, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Has Dr. Clay confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Clay. 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.