Individual provider Active NPI

Maryann Danielle Pappas, ACNP

  • Acute Care Nurse Practitioner
  • Saint Louis, MO
National Provider Identifier
1104791706
Registry record updated Jan 5, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Acute Care Nurse PractitionerTaxonomy code 363LA2100X
License
2025037502 Issued in MO
Practice address
1 Barnes Jewish Hospital PLZ
Dept Anesthesiology
Saint Louis, MO 63110-1003
Phone
(800) 862-9980
Fax
(314) 362-1185
NPI assigned
Oct 6, 2025
Sex
Female
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Jan 5, 2026

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

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Acute Care Nurse Practitioner 363LA2100X 2025037502 MO Primary

Addresses

Primary practice location

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

Mailing address

PO Box 7412011
Chicago, IL 60674-2011
Phone (800) 862-9980

Electronic endpoints 1

TypeEndpointUseAffiliation
FHIR URL https://epicproxy.et0965.epichosted.com/FHIRProxy/api/FHIR/DSTU2/ Washington University

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in MO, IL2 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

Enrollment IDStateProvider typePAC IDDetails
I20251215003385 MO Practitioner - Nurse Practitioner 7517451719 Reassigns benefits to 1 organization
I20260312001427 IL Practitioner - Nurse Practitioner 7517451719 Reassigns benefits to 1 organization

Care Compare profile

Medicare Care Compare
Specialty
Nurse Practitioner
Education
Other, 2025
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices
Washington UniversityGroup PAC ID 9830008770, 2,968 clinicians

Practice addresses (Care Compare)

1 Barnes Jew Hosp PLZ
Saint Louis, MO 63110-1003
Phone (314) 747-3000

Hospital & facility affiliations

  • Barnes Jewish Hospital Hospital, Saint Louis, MO, CCN 260032

National Provider Directory

National Provider Directory
Medicare enrollment (NPD)
Enrolled
Credentials
Nurse Practitioner

State licenses

LicenseStateTypeSpecialty
2025037502MOMDAcute Care Nurse Practitioner

Practice roles

OrganizationSpecialtyStatusNew patients
Washington University CurrentSince Jan 5, 2026 Accepting new patients
Washington University Physicians in Illinois, Inc CurrentSince Jan 5, 2026 Accepting new patients
Washington University Physicians in Illinois, Inc CurrentSince Jan 5, 2026 Accepting new patients
Washington University CurrentSince Jan 5, 2026 Accepting new patients

Locations

4500 Memorial Dr
Swansea, IL 62226
Phone (618) 233-7750

1 Barnes Hsp Plz
Saint Louis, MO 63110
Phone (314) 273-4966

1 Barnes Jewish Hospital Plz
Saint Louis, MO 63110
Phone (314) 362-1700

Organizations & group practices 5

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.

Hospital & facility affiliations 1

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

NPI Registry JSON

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

{
    "created_epoch": "1759708800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1767571200000",
    "number": "1104791706",
    "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": "800-862-9980",
            "fax_number": "314-362-1185"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1 BARNES JEWISH HOSPITAL PLZ",
            "address_2": "DEPT ANESTHESIOLOGY",
            "city": "SAINT LOUIS",
            "state": "MO",
            "postal_code": "631101003",
            "telephone_number": "800-862-9980",
            "fax_number": "314-362-1185"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "PAPPAS",
        "first_name": "MARYANN",
        "middle_name": "DANIELLE",
        "name_prefix": "Ms.",
        "credential": "ACNP",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2025-10-06",
        "last_updated": "2026-01-05",
        "certification_date": "2025-12-16",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "363LA2100X",
            "taxonomy_group": "",
            "desc": "Nurse Practitioner, Acute Care",
            "state": "MO",
            "license": "2025037502",
            "primary": true
        }
    ],
    "identifiers": [],
    "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 Anesthesiology",
            "city": "Saint Louis",
            "state": "MO",
            "country_code": "US",
            "postal_code": "631101003",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "other_names": []
}

Other providers in Saint Louis, MO

Sources for this page

Verify at the official NPI Registry.