Steven Derek Leighton, M.A.

Primary specialty

Marriage & Family TherapistTaxonomy code 106H00000X

License

200969 Issued in TX

Practice address

125 Waving Muhly Dr
San Marcos, TX 78666-4845

Phone

(512) 658-2960

NPI assigned

May 5, 2007

Sex

Male

Sole proprietor

Yes

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

Specialties & licenses 1

Addresses

Other names 1

• Derek Leighton Other name

Medicare fee-for-service enrollment

Not listed in the public Medicare enrollment file

Opted out of Medicare

Previously, effective Sep 11, 2024 through Sep 11, 2026

Medicare enrollment (NPD)

Not enrolled

Credentials

Master of Arts

State licenses

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

{
    "created_epoch": "1178323200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1784592000000",
    "number": "1609088152",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "125 WAVING MUHLY DR",
            "city": "SAN MARCOS",
            "state": "TX",
            "postal_code": "786664845",
            "telephone_number": "512-658-2960"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "125 WAVING MUHLY DR",
            "city": "SAN MARCOS",
            "state": "TX",
            "postal_code": "786664845",
            "telephone_number": "512-658-2960"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "3534 Bee Cave Rd",
            "address_2": "#114",
            "address_purpose": "LOCATION",
            "city": "West Lake Hills",
            "state": "TX",
            "postal_code": "787465468",
            "country_code": "US",
            "telephone_number": "512-658-2960",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "LEIGHTON",
        "first_name": "STEVEN",
        "middle_name": "DEREK",
        "credential": "M.A.",
        "sole_proprietor": "YES",
        "sex": "M",
        "enumeration_date": "2007-05-05",
        "last_updated": "2026-07-21",
        "certification_date": "2026-07-21",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "106H00000X",
            "taxonomy_group": "",
            "desc": "Marriage & Family Therapist",
            "state": "TX",
            "license": "200969",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": [
        {
            "first_name": "DEREK",
            "last_name": "LEIGHTON",
            "credential": "M.A.",
            "code": "5",
            "type": "Other Name"
        }
    ]
}

• Carolyn Lay
• Baleigh Leatherman
• Joseph Richard Lednicky
• Alan Lane Lee, M.D.
• Tiffany Lee, MA, OTR, BCB-PMD
• Jessica Lepore
• Toan Leung, MD
• Cindi Leigh Leveridge, MA LPC
• Alexia Nichelle Lewis
• Stacy Lewis, CNM

• Marriage & Family Therapist in San Marcos, TX
• Providers in San Marcos, TX by specialty
• Marriage & Family Therapist in Texas

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jul 21, 2026; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
• Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments; Opt Out Affidavits.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.