Margaret L De Haan

Primary specialty

Social WorkerTaxonomy code 104100000X

License

6802077521 Issued in MI

Practice address

1463 Flatbush Ave
Brooklyn, NY 11210-2428

Phone

(718) 951-9009

Fax

(718) 951-9719

NPI assigned

Feb 26, 2007

Sex

Female

Sole proprietor

Yes

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

Specialties & licenses 3

Addresses

Medicare fee-for-service enrollment

Not listed in the public Medicare enrollment file

Medicare enrollment (NPD)

Not enrolled

State licenses

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

{
    "created_epoch": "1172448000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1757548800000",
    "number": "1699801282",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "3235 EMMONS AVE APT 301",
            "city": "BROOKLYN",
            "state": "NY",
            "postal_code": "112351139",
            "telephone_number": "718-743-3651"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1463 FLATBUSH AVE",
            "city": "BROOKLYN",
            "state": "NY",
            "postal_code": "112102428",
            "telephone_number": "718-951-9009",
            "fax_number": "718-951-9719"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "DE HAAN",
        "first_name": "MARGARET",
        "middle_name": "L",
        "name_prefix": "Ms.",
        "sole_proprietor": "YES",
        "sex": "F",
        "enumeration_date": "2007-02-26",
        "last_updated": "2025-09-11",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "101YA0400X",
            "taxonomy_group": "",
            "desc": "Counselor, Addiction (Substance Use Disorder)",
            "state": "NY",
            "license": "19325",
            "primary": false
        },
        {
            "code": "101YM0800X",
            "taxonomy_group": "",
            "desc": "Counselor, Mental Health",
            "state": "NY",
            "license": "000280",
            "primary": false
        },
        {
            "code": "104100000X",
            "taxonomy_group": "",
            "desc": "Social Worker",
            "state": "MI",
            "license": "6802077521",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Jay De Guzman, RT
• Mark George De Guzman, LMSW
• Michelle Paredes De Guzman, RPT
• Sofia De Guzman, LCAT, ATR-BC
• Verne Aberilla De Guzman, MD
• Francisca De Isaac, R N
• Manuel Ramon De Jesus Escano, MD
• Edras Dyanna De Jesus Jimenez
• Alexander De Jesus, PT
• Carmen Luisa De Jesus, L.AC., LMT

• Social Worker in Brooklyn, NY
• Providers in Brooklyn, NY by specialty
• Social Worker in New York

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Sep 11, 2025; 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.