Dora Cecilia Rioja-Mazza, MD

Primary specialty

Pediatrics PhysicianTaxonomy code 208000000X

License

D0068381 Issued in MD

Practice address

24440 Stone Springs Blvd
Dulles, VA 20166-2247

Phone

(571) 349-5271

NPI assigned

Nov 5, 2008

Sex

Female

Sole proprietor

No

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

Specialties & licenses 2

Addresses

Other identifiers 5

Medicare fee-for-service enrollment

Enrolled in VA

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

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

State licenses

Practice roles

Locations

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.

• Emergency Medicine Associates, P.a.,P.C.

  • Internal Medicine Physician
  • Dulles, VA
  • NPI 1376917070
  Medicare reassignment NPD
• Peds World Associates Corp

  • Pediatrics Physician
  • Baltimore, MD
  • NPI 1467025379
  NPD Authorized official

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

{
    "created_epoch": "1225843200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1758067200000",
    "number": "1154575157",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "3449 WILKENS AVE STE 308",
            "city": "BALTIMORE",
            "state": "MD",
            "postal_code": "212295218",
            "telephone_number": "410-646-1200",
            "fax_number": "240-686-2330"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "24440 STONE SPRINGS BLVD",
            "city": "DULLES",
            "state": "VA",
            "postal_code": "201662247",
            "telephone_number": "571-349-5271"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "3449 Wilkens Ave Ste 308",
            "address_purpose": "LOCATION",
            "city": "Baltimore",
            "state": "MD",
            "postal_code": "212295218",
            "country_code": "US",
            "telephone_number": "410-646-1200",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "RIOJA-MAZZA",
        "first_name": "DORA",
        "middle_name": "CECILIA",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2008-11-05",
        "last_updated": "2025-09-17",
        "certification_date": "2025-09-17",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "208000000X",
            "taxonomy_group": "",
            "desc": "Pediatrics",
            "state": "MD",
            "license": "D0068381",
            "primary": true
        },
        {
            "code": "2080N0001X",
            "taxonomy_group": "",
            "desc": "Pediatrics, Neonatal-Perinatal Medicine",
            "state": "VA",
            "license": "01012442254",
            "primary": false
        }
    ],
    "identifiers": [
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "CAREFIRST",
            "identifier": "GM200002",
            "state": "MD"
        },
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "419752601",
            "state": "MD"
        },
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "WELLPOINT",
            "identifier": "15618449",
            "state": "MD"
        },
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "AETNABETTERHEALTH",
            "identifier": "PDZ000000319529",
            "state": "MD"
        },
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "UNITEDHEALTHCARE",
            "identifier": "003429043005",
            "state": "MD"
        }
    ],
    "endpoints": [],
    "other_names": []
}

• Kimberly T Prevost
• Saira P Rana, M.D.
• Amy Beckwith Rembold, PA-C
• Reston Hospital Center, LLC
• Gabriel Reyes, M.D.
• Allison Edna Roca, DNP
• Michelle Patricia Roggero
• Alison Levin Rosenthal, OD
• Edwin V Sanchez, ASSOCIATE LPCC
• Mital Sarada, RD

• Pediatrics Physician in Dulles, VA
• Providers in Dulles, VA by specialty
• Pediatrics Physician in Virginia

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Sep 17, 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.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.