Jennifer Brown O'Neil, MD

Primary specialty

Pediatric Cardiology PhysicianTaxonomy code 2080P0202X

License

0101250398 Issued in VA

Practice address

8260 Willow Oaks Corporate Dr Ste 400
Fairfax, VA 22031-4513

Phone

(703) 573-0504

Fax

(703) 573-4856

NPI assigned

May 20, 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 names 1

• Dr. Jennifer Lynn Brown Former name

Medicare fee-for-service enrollment

Enrolled in DC, VA2 enrollments

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 2

Merit-based Incentive Payment System (MIPS)

Final score

83.36 of 100Reported as group

Quality

73.03

Promoting interoperability

100

Improvement activities

40

Cost

71.49

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

Practice roles

Locations

Interoperability endpoints

• Direct secure messaging: joneil25895@soc.inova.org

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.

• Inova Health Care Services

  • Internal Medicine Physician
  • Falls Church, VA
  • NPI 1952320061

  DC, Pediatrics

  Medicare reassignment NPD
• Adventist Physician Services, Inc.

  dba Adventist Medical Group

  • Physical Medicine & Rehabilitation Physician
  • Gaithersburg, MD
  • NPI 1376623207

  DC

  Medicare reassignment NPD
• Inova Health Care Services

  dba Inova Juniper Program

  • Multi-Specialty Clinic/Center
  • Fairfax, VA
  • NPI 1669511051
  NPD
• Inova Health Care Services

  dba Inova Blood Donor Services

  • Medical Technologist
  • Sterling, VA
  • NPI 1699655589
  NPD

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

{
    "created_epoch": "1211241600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1777939200000",
    "number": "1548427271",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "PO BOX 37174",
            "city": "BALTIMORE",
            "state": "MD",
            "postal_code": "212973174",
            "telephone_number": "571-423-5699",
            "fax_number": "571-423-5698"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "8260 WILLOW OAKS CORPORATE DR STE 400",
            "city": "FAIRFAX",
            "state": "VA",
            "postal_code": "220314513",
            "telephone_number": "703-573-0504",
            "fax_number": "703-573-4856"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "8260 Willow Oaks Corporate Dr Ste 625",
            "address_purpose": "LOCATION",
            "city": "Fairfax",
            "state": "VA",
            "postal_code": "220314513",
            "country_code": "US",
            "telephone_number": "703-573-0504",
            "fax_number": "571-573-4856",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "O'NEIL",
        "first_name": "JENNIFER",
        "middle_name": "BROWN",
        "name_prefix": "Dr.",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2008-05-20",
        "last_updated": "2026-05-05",
        "certification_date": "2026-05-05",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "208000000X",
            "taxonomy_group": "",
            "desc": "Pediatrics",
            "state": "VA",
            "license": "0101250398",
            "primary": false
        },
        {
            "code": "2080P0202X",
            "taxonomy_group": "",
            "desc": "Pediatrics, Pediatric Cardiology",
            "state": "VA",
            "license": "0101250398",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": [
        {
            "first_name": "JENNIFER",
            "last_name": "BROWN",
            "middle_name": "LYNN",
            "prefix": "DR.",
            "credential": "MD",
            "code": "1",
            "type": "Former Name"
        }
    ]
}

• Karen Ann O'Hara
• Lindsay Buckingham O'Keefe, DPT
• Karyn O'Leary, LCSW
• Ann O'Malley, PHD
• Amy O'Masta, ATC
• Shripriya Mohan O'Neill, CPNP
• Jeanmarie O'Sullivan, MSW
• O&O Alpan, LLC
• Rachel Oakes, PHD
• Harvey Roy Oaklander, PH.D.

• Pediatric Cardiology Physician in Fairfax, VA
• Providers in Fairfax, VA by specialty
• Pediatric Cardiology Physician in Virginia

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on May 5, 2026; 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.