Ronald Brandt Mercer, DO MPH

Primary specialty

Family Medicine PhysicianTaxonomy code 207Q00000X

License

C20002147 Issued in DE

Practice address

Route 141
Dupont Medical Clinic CRP 700
Wilmington, DE 19880-0700

Phone

(302) 999-2267

Fax

(302) 999-3665

NPI assigned

Apr 4, 2007

Sex

Male

Sole proprietor

No

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

Specialties & licenses 2

Addresses

Medicare fee-for-service enrollment

Not listed in the public Medicare enrollment file

Medicare enrollment (NPD)

Not enrolled

Credentials

Doctor of Osteopathy

State licenses

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

{
    "created_epoch": "1175644800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1757548800000",
    "number": "1770605404",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "12 CRIMSON DRIVE",
            "city": "HOCKESSIN",
            "state": "DE",
            "postal_code": "197072101",
            "telephone_number": "302-234-0282"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "ROUTE 141",
            "address_2": "DUPONT MEDICAL CLINIC CRP 700",
            "city": "WILMINGTON",
            "state": "DE",
            "postal_code": "198800700",
            "telephone_number": "302-999-2267",
            "fax_number": "302-999-3665"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "MERCER",
        "first_name": "RONALD",
        "middle_name": "BRANDT",
        "credential": "DO MPH",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2007-04-04",
        "last_updated": "2025-09-11",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207Q00000X",
            "taxonomy_group": "",
            "desc": "Family Medicine",
            "state": "DE",
            "license": "C20002147",
            "primary": true
        },
        {
            "code": "2083X0100X",
            "taxonomy_group": "",
            "desc": "Preventive Medicine, Occupational Medicine",
            "state": "DE",
            "license": "C20002147",
            "primary": false
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Lea Ann Menear, O.D.
• Nana Ama Mensah
• Wilhelmina Mensah, FNP
• Rogelio Mercado, PHD
• Beatrice Anne Mercatante, C.N.M., M.S.N.
• Meredith Holmes
• Gwendolyn Meredith
• Marita Merkviladze
• Meroe Enterpises
• Michael Douglas Merrill

• Family Medicine Physician in Wilmington, DE
• Providers in Wilmington, DE by specialty
• Family Medicine Physician in Delaware

• 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.