Individual provider Active NPI

Arun Sunil Chandnani, MD

  • Hospitalist Physician
  • Saint Louis, MO
National Provider Identifier
1558046375
Registry record updated Jul 6, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Hospitalist PhysicianTaxonomy code 208M00000X
License
2026021277 Issued in MO
Practice address
1 Barnes Jewish Hospital PLZ
Div Im Hospitalist
Saint Louis, MO 63110-1003
Phone
(314) 362-1700
Fax
(314) 362-9878
NPI assigned
Jun 19, 2023
Sex
Male
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Jul 6, 2026

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

Specialties & licenses 2

Specialty (taxonomy)CodeLicenseStatePrimary
Internal Medicine Physician 207R00000X 2026021277 MO
Hospitalist Physician 208M00000X 2026021277 MO Primary

Addresses

Primary practice location

1 Barnes Jewish Hospital PLZ
Div Im Hospitalist
Saint Louis, MO 63110-1003

Mailing address

PO Box 7412011
Chicago, IL 60674-2011
Phone (314) 362-1700

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
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

Enrollment IDStateProvider typePAC IDDetails
I20230624000181 MO Order and Referring Only - Internal MedicinePractitioner - Internal Medicine 6204294143

Care Compare profile

Medicare Care Compare
Specialty
HospitalistAlso: Internal Medicine
Education
University of Colorado School of Medicine, Aurora, 2023
Medicare assignment
May accept Medicare assignment

Practice addresses (Care Compare)

1234 S Kingshighway Blvd
Suite 1100
Saint Louis, MO 63110-2106

4101 Laclede Ave
Unit 304
Saint Louis, MO 63108-2999

Hospital & facility affiliations

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

National Provider Directory

National Provider Directory
Medicare enrollment (NPD)
Enrolled

Practice roles

OrganizationSpecialtyStatusNew patients
Washington University Physicians in Illinois, Inc PastSince Jun 25, 2023 Accepting new patients

Organizations & group practices 1

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": "1687132800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1783296000000",
    "number": "1558046375",
    "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": "314-362-1700",
            "fax_number": "314-362-9878"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1 BARNES JEWISH HOSPITAL PLZ",
            "address_2": "DIV IM HOSPITALIST",
            "city": "SAINT LOUIS",
            "state": "MO",
            "postal_code": "631101003",
            "telephone_number": "314-362-1700",
            "fax_number": "314-362-9878"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "CHANDNANI",
        "first_name": "ARUN",
        "middle_name": "SUNIL",
        "name_prefix": "Dr.",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2023-06-19",
        "last_updated": "2026-07-06",
        "certification_date": "2023-06-19",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "MO",
            "license": "2026021277",
            "primary": false
        },
        {
            "code": "208M00000X",
            "taxonomy_group": "",
            "desc": "Hospitalist",
            "state": "MO",
            "license": "2026021277",
            "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": "Div IM Hospitalist",
            "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.