Rachel Elizabeth Armstrong, MD

Primary specialty

Emergency Medicine PhysicianTaxonomy code 207P00000X

License

2024008955 Issued in MO

Practice address

1 Barnes Jewish Hospital PLZ
Dept Emergency Med
Saint Louis, MO 63110-1003

Phone

(314) 362-9123

Fax

(314) 362-0478

NPI assigned

Aug 29, 2017

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

Other identifiers 1

Electronic endpoints 1

Medicare fee-for-service enrollment

Enrolled in MO

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

Emergency Medicine

Education

Northwestern University Feinberg Medical School, 2021

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Washington University Community Specialists LLC 94 clinicians

Washington University 2,968 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Christian Hospital Northeast Hospital, Saint Louis, MO, CCN 260180
• Barnes Jewish Hospital Hospital, Saint Louis, MO, CCN 260032

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

State licenses

Practice roles

Locations

Interoperability endpoints

• Direct secure messaging: rarmstrong2082921@direct.trinity-health.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.

• Washington University Community Specialists, LLC

  • Emergency Care Clinic/Center
  • Saint Louis, MO
  • NPI 1922812254

  MO

  Medicare reassignment Care Compare group NPD
• Washington University

  • Emergency Care Clinic/Center
  • Saint Louis, MO
  • NPI 1104866656

  MO

  Medicare reassignment NPD
• Washington University

  • Multi-Specialty Clinic/Center
  • Saint Louis, MO
  • NPI 1962442475
  NPD

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

• Barnes Jewish Hospital

  • General Acute Care Hospital
  • Saint Louis, MO
  • NPI 1649299827

  Hospital

  Care Compare affiliation
• Christian Hospital Northeast- Northwest

  • General Acute Care Hospital
  • Saint Louis, MO
  • NPI 1639186760

  Hospital

  Care Compare affiliation
• Christian Hospital Northeast-Northwest

  • Ambulance
  • Saint Louis, MO
  • NPI 1073769329

  Hospital

  Care Compare affiliation

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

{
    "created_epoch": "1503964800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1744675200000",
    "number": "1861919953",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "PO BOX 7412011",
            "city": "CHICAGO",
            "state": "IL",
            "postal_code": "606742011",
            "telephone_number": "314-362-9123",
            "fax_number": "314-362-0478"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1 BARNES JEWISH HOSPITAL PLZ",
            "address_2": "DEPT EMERGENCY MED",
            "city": "SAINT LOUIS",
            "state": "MO",
            "postal_code": "631101003",
            "telephone_number": "314-362-9123",
            "fax_number": "314-362-0478"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "ARMSTRONG",
        "first_name": "RACHEL",
        "middle_name": "ELIZABETH",
        "name_prefix": "Dr.",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2017-08-29",
        "last_updated": "2025-04-15",
        "certification_date": "2024-04-25",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207P00000X",
            "taxonomy_group": "",
            "desc": "Emergency Medicine",
            "state": "MO",
            "license": "2024008955",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "200141371",
            "state": "MO"
        }
    ],
    "endpoints": [
        {
            "endpointType": "FHIR",
            "endpointTypeDescription": "FHIR URL",
            "endpoint": "https://epicproxy.et0965.epichosted.com/FHIRProxy/api/FHIR/DSTU2/",
            "affiliation": "Y",
            "affiliationName": "Washington University",
            "address_1": "1 Barnes Jewish Hospital Plz",
            "address_2": "Dept Emergency Med",
            "city": "Saint Louis",
            "state": "MO",
            "country_code": "US",
            "postal_code": "631101003",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "other_names": []
}

• Austin Armstrong
• Diana E Armstrong, APRN-BC
• Jennifer Nicole Armstrong, PMHNP-BC
• Katelynn Armstrong, M.ED., LPC
• Margo Armstrong
• Raonna Armstrong, SRNA
• Susan O'Neill Armstrong, PLSW
• Sahar Najy Arnaout, CRNA
• Ian Michael Arndt
• Jordan Marie Arneaud, ACNP

• All providers in Saint Louis, MO
• Emergency Medicine Physician in Missouri

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Apr 15, 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.