Gregory B. Clay, O.D.,F.A.A.O

Primary specialty

OptometristTaxonomy code 152W00000X

License

916 Issued in OK

Practice address

1901 University Blvd.
Durant, OK 74701-2127

Phone

(580) 920-2020

Fax

(580) 924-5656

NPI assigned

Jul 25, 2006

Sex

Male

Sole proprietor

No

Registry information is reported by the provider to CMS and is not verified. About this source

Specialties & licenses 1

Addresses

Other identifiers 1

Medicare fee-for-service enrollment

Enrolled in OK

Eligible to order & refer

• Part B services: Yes
• Medical equipment: Yes
• Home health: Yes
• Power mobility devices: No
• Hospice: Yes

Green means eligible to order or refer.

Enrollment records 1

Specialty

Optometry

Education

Southern College of Optometry, 1977

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Southeastern Oklahoma Eye ClinicGroup PAC ID 7719066638, 6 clinicians

Practice addresses (Care Compare)

Merit-based Incentive Payment System (MIPS)

Final score

95 of 100Reported as group

Quality

90

Improvement activities

40

Procedures performed for Medicare patients

Medicare enrollment (NPD)

Enrolled

Practice roles

Locations

Interoperability endpoints

• Direct secure messaging: dr.greg.clay@clayrhynes.eyefinity-direct.com

Organizations this provider is connected to: Medicare benefit reassignments (the organization bills Medicare for this provider’s services), Care Compare group memberships and National Provider Directory roles.

• Southeastern Oklahoma Eye Clinic

  • Eyewear Supplier
  • Durant, OK
  • NPI 1700915956

  Optometrist

  Medicare reassignment Care Compare group NPD

The complete NPPES record for this NPI in the NPI Registry API format.

{
    "created_epoch": "1153785600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1773619200000",
    "number": "1023031994",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "1901 W UNIVERSITY BLVD",
            "city": "DURANT",
            "state": "OK",
            "postal_code": "747013098",
            "telephone_number": "580-920-2020",
            "fax_number": "580-924-5656"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1901 UNIVERSITY BLVD.",
            "city": "DURANT",
            "state": "OK",
            "postal_code": "747012127",
            "telephone_number": "580-920-2020",
            "fax_number": "580-924-5656"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "CLAY",
        "first_name": "GREGORY",
        "middle_name": "B.",
        "name_prefix": "Dr.",
        "credential": "O.D.,F.A.A.O",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2006-07-25",
        "last_updated": "2026-03-16",
        "certification_date": "2026-03-16",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "152W00000X",
            "taxonomy_group": "",
            "desc": "Optometrist",
            "state": "OK",
            "license": "916",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "100761430A",
            "state": "OK"
        }
    ],
    "endpoints": [],
    "other_names": []
}

• Cheyenne Clark
• Maegan Richelle Clark
• Susan G. Clark
• Tyler Rex Clark
• Lana Clary, PHARMD
• Staci Clay
• Brittany Gayle Cleere
• Payci Teryn Cloyd, BA
• Janet Cobb, CMII
• Matthew Cochran

• Optometrist in Durant, OK
• Providers in Durant, OK by specialty
• Optometrist in Oklahoma

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Mar 16, 2026; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
• Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments; Order and Referring.
• Medicare Care Compare (CMS): clinician profile, group practices, facility affiliations, MIPS scores and star ratings.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.