Melanie Jean Leasck, BCBA

Primary specialty

Behavior AnalystTaxonomy code 103K00000X

License

2021040581 Issued in MO

Practice address

14733 Clayton Rd
Ballwin, MO 63011-2660

Phone

(314) 339-7732

Fax

(314) 778-9286

NPI assigned

Nov 28, 2023

Sex

Female

Sole proprietor

Yes

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

Not listed in the public Medicare enrollment file

Medicare enrollment (NPD)

Not enrolled

State licenses

Practice roles

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.

• Autism and Behavioral Spectrum LLC

  • Clinic/Center
  • Chesterfield, MO
  • NPI 1780131300
  NPD (past)

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

{
    "created_epoch": "1701129600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1776902400000",
    "number": "1164298550",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "14733 CLAYTON RD",
            "city": "BALLWIN",
            "state": "MO",
            "postal_code": "630112660",
            "telephone_number": "314-339-7732",
            "fax_number": "314-778-9286"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "14733 CLAYTON RD",
            "city": "BALLWIN",
            "state": "MO",
            "postal_code": "630112660",
            "telephone_number": "314-339-7732",
            "fax_number": "314-778-9286"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "LEASCK",
        "first_name": "MELANIE",
        "middle_name": "JEAN",
        "credential": "BCBA",
        "sole_proprietor": "YES",
        "sex": "F",
        "enumeration_date": "2023-11-28",
        "last_updated": "2026-04-23",
        "certification_date": "2026-04-23",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "103K00000X",
            "taxonomy_group": "",
            "desc": "Behavior Analyst",
            "state": "MO",
            "license": "2021040581",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Erica Amelia Lammert, RNFA
• Jennifer Ann Lane, M.S., CCC-SLP
• Nicole Lavin, RN
• Chad Rudolph Lawrence, PT, DPT
• Lawton Healthcare Services LLC
• Kathy H Legay
• Robert Leipziger, D.D.S.
• Danna Angelia Lemen
• Christine A Leslie, MA, LPC
• Eric Leslie, L.P.C.

• Behavior Analyst in Ballwin, MO
• Providers in Ballwin, MO by specialty
• Behavior Analyst in Missouri

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Apr 23, 2026; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.