Maryssa Mary Catherine Miller, MD

Primary specialty

Internal Medicine PhysicianTaxonomy code 207R00000X

License

MD500002778 Issued in DC

Practice address

3301 New Mexico Ave NW Ste 336
Washington, DC 20016-3612

Phone

(202) 362-4467

Fax

(202) 793-5447

NPI assigned

Apr 25, 2022

Last updated

Sep 7, 2025By the provider in NPPES

Sex

Female

Sole proprietor

Yes

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

Specialties & licenses 1

Addresses

Other names 1

• Maryssa Mary Catherine Gilbert Former name

Medicare fee-for-service enrollment

Enrolled in DC

Eligible to order & refer

• Part B services: Yes
• Medical equipment: Yes
• Home health: Yes
• Power mobility devices: Yes
• Hospice: Yes

Green means eligible to order or refer.

Enrollment records 1

Specialty

Internal Medicine

Education

Michigan State University College of Human Medicine, 2022

Medicare assignment

May accept Medicare assignment

Practice addresses (Care Compare)

Hospital & facility affiliations

• Sibley Memorial Hospital Hospital, Washington, DC, CCN 090005

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

Practice roles

Locations

Interoperability endpoints

• Direct secure messaging: maryssa.miller@241179132887044.direct.elationemr.com

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.

• Foxhall Internists,PC

  • Internal Medicine Physician
  • Washington, DC
  • NPI 1922290931

  Single Specialty

  NPD

Hospitals and other facilities this clinician is affiliated with according to Medicare Care Compare.

• Lucy Webb Hayes National Training School for Deaconesses & Missionarie

  dba Sibley Memorial Hospital

  • General Acute Care Hospital
  • Washington, DC
  • NPI 1366492977
  Care Compare affiliation

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

{
    "created_epoch": "1650844800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1757203200000",
    "number": "1881338853",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "3301 NEW MEXICO AVE NW STE 336",
            "city": "WASHINGTON",
            "state": "DC",
            "postal_code": "200163612",
            "telephone_number": "202-362-4467",
            "fax_number": "202-793-5447"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "3301 NEW MEXICO AVE NW STE 336",
            "city": "WASHINGTON",
            "state": "DC",
            "postal_code": "200163612",
            "telephone_number": "202-362-4467",
            "fax_number": "202-793-5447"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "MILLER",
        "first_name": "MARYSSA",
        "middle_name": "MARY CATHERINE",
        "name_prefix": "Dr.",
        "credential": "MD",
        "sole_proprietor": "YES",
        "sex": "F",
        "enumeration_date": "2022-04-25",
        "last_updated": "2025-09-07",
        "certification_date": "2025-09-07",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "DC",
            "license": "MD500002778",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": [
        {
            "first_name": "MARYSSA",
            "last_name": "GILBERT",
            "middle_name": "MARY CATHERINE",
            "code": "1",
            "type": "Former Name"
        }
    ]
}

• Macie Deanne Miller
• Margaret Louise Miller X, LICSW
• Marie Guadalupe Miller
• Marijean M Miller, MD
• Marissa Miller, PHD
• Matthew Miller, NRP
• Maurice Miller
• Maxine Eunita Miller, DPM
• Meghan Elizabeth Miller, OTR/L
• Meghan Suzanne Miller, AUD

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

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Sep 7, 2025; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
• Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments; Order and Referring.
• Medicare Care Compare (CMS): clinician profile, group practices, facility affiliations, MIPS scores and star ratings.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.