Individual provider Active NPI

William Moulden, BCBA

  • Behavior Analyst
  • Frederick, MD
National Provider Identifier
1437071073
Registry record updated Jul 27, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Behavior AnalystTaxonomy code 103K00000X
Practice address
351 Ballenger Center Dr Ste 201
Frederick, MD 21703-7384
Phone
(240) 342-2666
NPI assigned
Jul 27, 2026
Sex
Male
Sole proprietor
Yes

NPPES NPI Registry

Updated by the provider on Jul 27, 2026

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

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Behavior Analyst 103K00000X Primary

Addresses

Primary practice location

351 Ballenger Center Dr Ste 201
Frederick, MD 21703-7384

Mailing address

7901B Friends Creek Rd
Emmitsburg, MD 21727-9704
Phone (240) 357-4273

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Not listed in the public Medicare enrollment file

National Provider Directory

National Provider Directory
Medicare enrollment (NPD)
Not enrolled

Practice roles

OrganizationSpecialtyStatusNew patients
Ally Behavior LLC Behavior Analyst PastSince Mar 11, 2025 Accepting new patients
Ally Behavior LLC PastSince Mar 11, 2025 Accepting new patients

Organizations & group practices 2

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.

NPI Registry JSON

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

{
    "created_epoch": "1785110400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1785110400000",
    "number": "1437071073",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "7901B FRIENDS CREEK RD",
            "city": "EMMITSBURG",
            "state": "MD",
            "postal_code": "217279704",
            "telephone_number": "240-357-4273"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "351 BALLENGER CENTER DR STE 201",
            "city": "FREDERICK",
            "state": "MD",
            "postal_code": "217037384",
            "telephone_number": "240-342-2666"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "MOULDEN",
        "first_name": "WILLIAM",
        "credential": "BCBA",
        "sole_proprietor": "YES",
        "sex": "M",
        "enumeration_date": "2026-07-27",
        "last_updated": "2026-07-27",
        "certification_date": "2026-07-27",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "103K00000X",
            "taxonomy_group": "",
            "desc": "Behavior Analyst",
            "state": null,
            "license": null,
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Frederick, MD

Sources for this page

  • NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jul 27, 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.