Active NPI
Arun Sunil Chandnani, MD
- Hospitalist Physician
- Saint Louis, MO
National Provider Identifier
1558046375
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Hospitalist Physician
- License
- 2026021277
- 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
Registry information is reported by the provider to CMS and is not verified. About this source
Specialties & licenses 2
| Specialty (taxonomy) | Code | License | State | Primary |
|---|---|---|---|---|
| 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
| Type | Endpoint | Use | Affiliation |
|---|---|---|---|
| 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
Enrollment records 1
| Enrollment ID | State | Provider type | PAC ID | Details |
|---|---|---|---|---|
| I20230624000181 | MO | Order and Referring Only - Internal Medicine | 6204294143 |
Care Compare profile
Medicare Care Compare- Specialty
- Hospitalist
- 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
National Provider Directory
National Provider Directory- Medicare enrollment (NPD)
- Enrolled
Practice roles
| Organization | Specialty | Status | New patients |
|---|---|---|---|
| Washington University Physicians in Illinois, Inc | Past | 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.
-
- Multi-Specialty Clinic/Center
- Saint Louis, MO
- NPI 1457203135
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
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jul 6, 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.