Richard Gregg Dwyer, M.D., ED.D.

Primary specialty

Psychiatry PhysicianTaxonomy code 2084P0800X

License

00016639 Issued in SD

Practice address

2401 E Street NW L217
Washington, DC 20520-5712

Phone

(202) 663-1901

NPI assigned

Mar 6, 2007

Last updated

Oct 18, 2025By the provider in NPPES

Sex

Male

Sole proprietor

No

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

Specialties & licenses 3

Addresses

Other identifiers 1

Medicare fee-for-service enrollment

Not listed in the public Medicare enrollment file

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

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, National Provider Directory roles and organizations whose NPPES authorized official is this provider.

• University Specialty Clinics - Neuropsychiatry and Behavioral Science

  • Psychiatry Physician
  • Columbia, SC
  • NPI 1821020116
  NPD (past)

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

{
    "created_epoch": "1173139200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1760745600000",
    "number": "1023148772",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "519 W 22ND ST STE 100",
            "city": "SIOUX FALLS",
            "state": "SD",
            "postal_code": "571051745"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "2401 E STREET NW L217",
            "city": "WASHINGTON",
            "state": "DC",
            "postal_code": "205205712",
            "telephone_number": "202-663-1901"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "DWYER",
        "first_name": "RICHARD",
        "middle_name": "GREGG",
        "name_prefix": "Dr.",
        "credential": "M.D., ED.D.",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2007-03-06",
        "last_updated": "2025-10-18",
        "certification_date": "2025-10-18",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "2084F0202X",
            "taxonomy_group": "",
            "desc": "Psychiatry & Neurology, Forensic Psychiatry",
            "state": "SD",
            "license": "00016639",
            "primary": false
        },
        {
            "code": "2084P0804X",
            "taxonomy_group": "",
            "desc": "Psychiatry & Neurology, Child & Adolescent Psychiatry",
            "state": "SD",
            "license": "00016639",
            "primary": false
        },
        {
            "code": "2084P0800X",
            "taxonomy_group": "",
            "desc": "Psychiatry & Neurology, Psychiatry",
            "state": "SD",
            "license": "00016639",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "232162",
            "state": "SC"
        }
    ],
    "endpoints": [],
    "other_names": []
}

• Dva Renal Healthcare Inc (Washington Southeast Dialysis)
• Melissa Renee Dvorsky, PHD
• Bara' Hisham Moh'D Akram Dweik, M.D.
• DWW Psychological Services, LLC
• Deborah A Dwyer, CRNP
• Ilina Dybele
• Ceymone Dyce, PHD, LGPC, NCC
• Demetria Dye, LGSW
• Nathaniel Dye
• Carol Ann Dyer, MD

• Psychiatry Physician in Washington, DC
• Providers in Washington, DC by specialty
• Psychiatry Physician in District of Columbia

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Oct 18, 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.