Helen Xiao

Primary specialty

Physician AssistantTaxonomy code 363A00000X

License

PA200001765 Issued in MD

Practice address

5255 Loughboro Rd NW
Washington, DC 20016-2633

Phone

(410) 955-5000

NPI assigned

Apr 4, 2021

Sex

Female

Sole proprietor

No

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

Specialties & licenses 1

Addresses

Medicare fee-for-service enrollment

Enrolled in VA, DC2 enrollments

Eligible to order & refer

• Part B services: Yes
• Medical equipment: Yes
• Home health: Yes
• Power mobility devices: Yes
• Hospice: No

Green means eligible to order or refer.

Enrollment records 2

Specialty

Physician Assistant

Education

Other, 2021

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Johns Hopkins UniversityGroup PAC ID 4981745098, 711 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

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

Merit-based Incentive Payment System (MIPS)

Final score

83.31 of 100Reported as group

Quality

73.89

Promoting interoperability

100

Improvement activities

40

Cost

70.47

Merit-based Incentive Payment System (MIPS)

Final score

80.52 of 100Reported as group

Quality

56.13

Promoting interoperability

98

Improvement activities

40

Cost

80.61

Medicare enrollment (NPD)

Enrolled

Credentials

Physician Assistant

State licenses

Practice roles

Locations

Interoperability endpoints

• Direct secure messaging: hxiao1153932@direct.hopkinsmedicine.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.

• Johns Hopkins University

  • Body Imaging Physician
  • Baltimore, MD
  • NPI 1093796609

  DC

  Medicare reassignment Care Compare group NPD
• Gastroenterology Associates of Northern Virginia, LLC

  • Gastroenterology Physician
  • Fairfax, VA
  • NPI 1205884368

  DC

  Medicare reassignment
• Johns Hopkins University

  • Neurology Physician
  • MC Lean, VA
  • NPI 1598552226
  NPD
• Old Dominion Anesthesia LLC

  • Anesthesiology Physician
  • Charlottesville, VA
  • NPI 1902248677
  NPD (past)

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

• Lucy Webb Hayes National Training School for Deaconesses & Missionarie

  • 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": "1617494400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1778544000000",
    "number": "1962081372",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "6201 GREENLEIGH AVE",
            "city": "MIDDLE RIVER",
            "state": "MD",
            "postal_code": "212202004",
            "telephone_number": "410-955-5000"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "5255 LOUGHBORO RD NW",
            "city": "WASHINGTON",
            "state": "DC",
            "postal_code": "200162633",
            "telephone_number": "410-955-5000"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "3028 Javier Rd Ste 300",
            "address_purpose": "LOCATION",
            "city": "Fairfax",
            "state": "VA",
            "postal_code": "220314622",
            "country_code": "US",
            "telephone_number": "910-386-7367",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "XIAO",
        "first_name": "HELEN",
        "name_prefix": "Ms.",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2021-04-04",
        "last_updated": "2026-05-12",
        "certification_date": "2026-05-12",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "363A00000X",
            "taxonomy_group": "",
            "desc": "Physician Assistant",
            "state": "MD",
            "license": "PA200001765",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Xaney Health Care Solution
• Xavier Slotkoff DDS P.C.
• Stephen N. Xenakis, MD
• Xentrik Multi Services LLC
• Danlei Xiang, LGPC
• Chuanzhao Xie
• Dongmei Xing
• Xpress Medcare of DC Inc
• Can Xu
• Esther Xu, MD

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

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on May 12, 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.