Active NPI
Rishi Nath Sud, M.D.
- Family Medicine Physician
- Chesterfield, MO
National Provider Identifier
1598749004
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Family Medicine Physician
- License
- 2017031914
- Practice address
- 977 Tara Oaks Dr
Chesterfield, MO 63005-3656 - Phone
- (773) 636-1646
- Fax
- (314) 390-5404
- NPI assigned
- Nov 30, 2005
- Last updated
- Aug 2, 2026
- 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 1
| Specialty (taxonomy) | Code | License | State | Primary |
|---|---|---|---|---|
| Family Medicine Physician | 207Q00000X | 2017031914 | MO | Primary |
Addresses
Primary practice location
977 Tara Oaks Dr
Chesterfield, MO 63005-3656
Mailing address
977 Tara Oaks Dr
Chesterfield, MO 63005-3656
Phone (773) 636-1646
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
National Provider Directory
National Provider Directory- Medicare enrollment (NPD)
- Enrolled
- Credentials
- Doctor of Medicine
Practice roles
| Organization | Specialty | Status | New patients |
|---|---|---|---|
| English and McLaughlin, P.C. | Family Medicine | Current | Accepting new patients |
| St Anthony Medical Center | Past | Accepting new patients | |
| Concentra Primary Care of Illinois PC | Past | Accepting new patients |
Interoperability endpoints
- rishi.sud.p1@direct.essehealth.nextgenshare.com
Organizations & group practices 4
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.
-
dba Esse Health
- Internal Medicine Physician
- Shiloh, IL
- NPI 1780314781
Family Medicine
-
dba Concentra Primary Care
- Primary Care Clinic/Center
- Addison, TX
- NPI 1811267396
-
dba Franciscan Physician Network
- Multi-Specialty Clinic/Center
- Crown Point, IN
- NPI 1568402774
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1133308800000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1785628800000",
"number": "1598749004",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "977 TARA OAKS DR",
"city": "CHESTERFIELD",
"state": "MO",
"postal_code": "630053656",
"telephone_number": "773-636-1646",
"fax_number": "314-390-5404"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "977 TARA OAKS DR",
"city": "CHESTERFIELD",
"state": "MO",
"postal_code": "630053656",
"telephone_number": "773-636-1646",
"fax_number": "314-390-5404"
}
],
"practiceLocations": [],
"basic": {
"last_name": "SUD",
"first_name": "RISHI",
"middle_name": "NATH",
"name_prefix": "Dr.",
"credential": "M.D.",
"sole_proprietor": "NO",
"sex": "M",
"enumeration_date": "2005-11-30",
"last_updated": "2026-08-02",
"certification_date": "2026-08-02",
"status": "A"
},
"taxonomies": [
{
"code": "207Q00000X",
"taxonomy_group": "",
"desc": "Family Medicine",
"state": "MO",
"license": "2017031914",
"primary": true
}
],
"identifiers": [],
"endpoints": [],
"other_names": []
}Other providers in Chesterfield, MO
Sources for this page
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Aug 2, 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.
- National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.