Ryan James Grantham, MD

Primary specialty

Psychiatry PhysicianTaxonomy code 2084P0800X

License

1376114744 Issued in OK

Practice address

921 NE 13TH St
Oklahoma City, OK 73104-5007

Phone

(405) 456-1000

NPI assigned

Jul 7, 2021

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

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: Yes
• Hospice: Yes

Green means eligible to order or refer.

Enrollment records 1

Medicare enrollment (NPD)

Enrolled

State licenses

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

{
    "created_epoch": "1625616000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1788134400000",
    "number": "1376114744",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "921 NE 13TH ST",
            "city": "OKLAHOMA CITY",
            "state": "OK",
            "postal_code": "731045007"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "921 NE 13TH ST",
            "city": "OKLAHOMA CITY",
            "state": "OK",
            "postal_code": "731045007",
            "telephone_number": "405-456-1000"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "GRANTHAM",
        "first_name": "RYAN",
        "middle_name": "JAMES",
        "name_prefix": "Dr.",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2021-07-07",
        "last_updated": "2026-08-31",
        "certification_date": "2026-08-31",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "2084P0800X",
            "taxonomy_group": "",
            "desc": "Psychiatry & Neurology, Psychiatry",
            "state": "OK",
            "license": "1376114744",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Sylvina Grant
• Treyon L Grant, DDS
• Margaret Sue Grantham-Anderson, LPC
• Hillary Beth Grantham, M.A., LPC
• Roy N Grantham, MD
• Luci Ann Gratch, ARNP
• Renee H Grau, MD
• Kristen Elizabeth Grauer, CPM
• Gravel Road Mental Health Services, PLLC
• Cari Gravel, LCSW

• Psychiatry Physician in Oklahoma City, OK
• Providers in Oklahoma City, OK by specialty
• Psychiatry Physician in Oklahoma

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Aug 31, 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.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.