Individual provider Active NPI

Marie Antoinette Diggins, CAC-AD

  • Addiction (Substance Use Disorder) Counselor
  • Baltimore, MD
National Provider Identifier
1891100400
Registry record updated Mar 7, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Addiction (Substance Use Disorder) CounselorTaxonomy code 101YA0400X
License
AC1901 Issued in MD
Practice address
16 W 25TH St Ste 201
Baltimore, MD 21218-5002
Phone
(410) 325-7256
Fax
(410) 485-1705
NPI assigned
Jun 23, 2014
Sex
Female
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Mar 7, 2026

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

Specialties & licenses 2

Specialty (taxonomy)CodeLicenseStatePrimary
Addiction (Substance Use Disorder) Counselor 101YA0400X AC1901 MD Primary
Home Health Aide 374U00000X 30AL2801 MD

Addresses

Primary practice location

16 W 25TH St Ste 201
Baltimore, MD 21218-5002

Mailing address

19 Nutmeg Knoll CT Apt B
Cockeysville, MD 21030-4334
Phone (410) 501-4759

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

State licenses

LicenseStateTypeSpecialty
AC1901MDMDAddiction (Substance Use Disorder) Counselor
30AL2801MDMDHome Health Aide

Practice roles

OrganizationSpecialtyStatusNew patients
My Sisters Keeper House of Kings, Inc CurrentSince Dec 5, 2021 Accepting new patients

Organizations & group practices 1

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": "1403481600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1772841600000",
    "number": "1891100400",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "19 NUTMEG KNOLL CT APT B",
            "city": "COCKEYSVILLE",
            "state": "MD",
            "postal_code": "210304334",
            "telephone_number": "410-501-4759"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "16 W 25TH ST STE 201",
            "city": "BALTIMORE",
            "state": "MD",
            "postal_code": "212185002",
            "telephone_number": "410-325-7256",
            "fax_number": "410-485-1705"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "DIGGINS",
        "first_name": "MARIE",
        "middle_name": "ANTOINETTE",
        "credential": "CAC-AD",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2014-06-23",
        "last_updated": "2026-03-07",
        "certification_date": "2026-03-07",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "101YA0400X",
            "taxonomy_group": "",
            "desc": "Counselor, Addiction (Substance Use Disorder)",
            "state": "MD",
            "license": "AC1901",
            "primary": true
        },
        {
            "code": "374U00000X",
            "taxonomy_group": "",
            "desc": "Home Health Aide",
            "state": "MD",
            "license": "30AL2801",
            "primary": false
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Baltimore, MD

Sources for this page

  • NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Mar 7, 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.