Individual provider Active NPI

Angus McClain Harper, MD

  • Hospitalist Physician
  • Baton Rouge, LA
National Provider Identifier
1558002741
Registry record updated Aug 13, 2025
On this page

Key facts

NPPES NPI Registry
Primary specialty
Hospitalist PhysicianTaxonomy code 208M00000X
License
346941 Issued in LA
Practice address
5000 Hennessy Blvd
Baton Rouge, LA 70808-4375
Phone
(225) 765-4050
Fax
(225) 765-4046
NPI assigned
Apr 5, 2022
Last updated
Aug 13, 2025By the provider in NPPES
Sex
Male
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Aug 13, 2025

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

Specialties & licenses 3

Specialty (taxonomy)CodeLicenseStatePrimary
Student in an Organized Health Care Education/Training Program 390200000X
Internal Medicine Physician 207R00000X 346941 LA
Hospitalist Physician 208M00000X 346941 LA Primary

Addresses

Primary practice location

5000 Hennessy Blvd
Baton Rouge, LA 70808-4375

Mailing address

5959 S Sherwood Forest Blvd
Baton Rouge, LA 70816-6038
Phone (225) 765-4050

Other practice location 1

1542 Tulane Ave # T4M2
New Orleans, LA 70112-2865
Phone (504) 568-5600

Electronic endpoints 2

TypeEndpointUseAffiliation
Direct Messaging Address aharper5338974@direct.casso.us.com Direct
FHIR URL https://epicproxy.et0830.epichosted.com/FHIRProxy/api/FHIR/DSTU2/ Other

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in LA
Eligible to order & refer
  • Part B services: Yes
  • Medical equipment: Yes
  • Home health: Yes
  • Power mobility devices: No
  • Hospice: Yes
Green means eligible to order or refer.

Enrollment records 1

Enrollment IDStateProvider typePAC IDDetails
I20250627002232 LA Practitioner - Hospitalist 4082094990 Reassigns benefits to 1 organization

Care Compare profile

Medicare Care Compare
Specialty
Hospitalist
Education
University of Mississippi School of Medicine, 2022
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices

Practice addresses (Care Compare)

5000 Hennessy Blvd
Baton Rouge, LA 70808-4375
Phone (225) 765-4050

Hospital & facility affiliations

National Provider Directory

National Provider Directory
Medicare enrollment (NPD)
Enrolled
Credentials
Doctor of Medicine

State licenses

LicenseStateTypeSpecialty
346941LAMDInternal Medicine Physician

Practice roles

OrganizationSpecialtyStatusNew patients
Our Lady of the Lake Physician Group LLC Internal Medicine Current Accepting new patients
Our Lady of the Lake Physician Group LLC CurrentSince Jul 1, 2025 Accepting new patients
Our Lady of the Lake Hospital Inc. Past Accepting new patients

Locations

5000 Hennessy Blvd
Baton Rouge, LA 70808
Phone (225) 765-4050

5959 S Sherwood Forest Blvd
Baton Rouge, LA 70816
Phone (225) 526-0011

1125 W Highway 30
Gonzales, LA 70737
Phone (225) 621-2975

Interoperability endpoints

  • Direct secure messaging: aharper5338974@direct.casso.us.com
  • FHIR API: https://epicproxy.et0830.epichosted.com/FHIRProxy/api/FHIR/R4/

Organizations & group practices 3

Organizations this provider is connected to: Medicare benefit reassignments (the organization bills Medicare for this provider’s services), Care Compare group memberships, National Provider Directory roles and organizations whose NPPES authorized official is this provider.

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": "1649116800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1755043200000",
    "number": "1558002741",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "5959 S SHERWOOD FOREST BLVD",
            "city": "BATON ROUGE",
            "state": "LA",
            "postal_code": "708166038",
            "telephone_number": "225-765-4050",
            "fax_number": "225-765-9196"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "5000 HENNESSY BLVD",
            "city": "BATON ROUGE",
            "state": "LA",
            "postal_code": "708084375",
            "telephone_number": "225-765-4050",
            "fax_number": "225-765-4046"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "1542 Tulane Ave # T4M2",
            "address_purpose": "LOCATION",
            "city": "New Orleans",
            "state": "LA",
            "postal_code": "701122865",
            "country_code": "US",
            "telephone_number": "504-568-5600",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "HARPER",
        "first_name": "ANGUS",
        "middle_name": "MCCLAIN",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2022-04-05",
        "last_updated": "2025-08-13",
        "certification_date": "2025-08-13",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "390200000X",
            "taxonomy_group": "",
            "desc": "Student in an Organized Health Care Education/Training Program",
            "state": null,
            "license": null,
            "primary": false
        },
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "LA",
            "license": "346941",
            "primary": false
        },
        {
            "code": "208M00000X",
            "taxonomy_group": "",
            "desc": "Hospitalist",
            "state": "LA",
            "license": "346941",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [
        {
            "endpointType": "DIRECT",
            "endpointTypeDescription": "Direct Messaging Address",
            "endpoint": "aharper5338974@direct.casso.us.com",
            "affiliation": "N",
            "endpointDescription": "FMOLHS-Epic",
            "use": "DIRECT",
            "useDescription": "Direct",
            "contentType": "OTHER",
            "contentTypeDescription": "Other",
            "contentOtherDescription": "aharper5338974@direct.casso.us.com",
            "address_1": "5000 Hennessy Blvd",
            "city": "Baton Rouge",
            "state": "LA",
            "country_code": "US",
            "postal_code": "708084375",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "endpointType": "FHIR",
            "endpointTypeDescription": "FHIR URL",
            "endpoint": "https://epicproxy.et0830.epichosted.com/FHIRProxy/api/FHIR/DSTU2/",
            "affiliation": "N",
            "endpointDescription": "FMOLHS FHIR URL",
            "use": "OTHER",
            "useDescription": "Other",
            "useOtherDescription": "FHIR API",
            "contentType": "OTHER",
            "contentTypeDescription": "Other",
            "contentOtherDescription": "C-CDA",
            "address_1": "5000 Hennessy Blvd",
            "city": "Baton Rouge",
            "state": "LA",
            "country_code": "US",
            "postal_code": "708084375",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "other_names": []
}

Other providers in Baton Rouge, LA

Sources for this page

Verify at the official NPI Registry.