Active NPI
Siri Ancha, MD
- Gastroenterology Physician
- Chesterfield, MO
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Gastroenterology Physician
- License
- 2020042128
- Practice address
- 17298 N Outer 40 Rd Ste 200
Chesterfield, MO 63005-1456 - Phone
- (314) 529-4900
- Fax
- (314) 434-2679
- NPI assigned
- Jun 21, 2018
- Last updated
- Oct 21, 2026
- Sex
- Female
- 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 |
|---|---|---|---|---|
| Gastroenterology Physician | 207RG0100X | 2020042128 | MO | Primary |
Addresses
Primary practice location
17298 N Outer 40 Rd Ste 200
Chesterfield, MO 63005-1456
Mailing address
17298 N Outer 40 Rd Ste 200
Chesterfield, MO 63005-1456
Phone (314) 529-4900
Other identifiers 1
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 200060948 | Medicaid | MO |
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
Care Compare profile
Medicare Care Compare- Specialty
- Internal Medicine
- Education
- Other, 2018
- Medicare assignment
- Accepts the Medicare-approved amount as payment in full
- Group practices
Practice addresses (Care Compare)
17298 N Outer 40 Rd
Suite 200
Chesterfield, MO 63005-1456
Phone (314) 529-4900
Hospital & facility affiliations
Procedures performed for Medicare patients
| Procedure | Number of procedures |
|---|---|
| Colonoscopy | 27 |
| Upper gastrointestinal (GI) endoscopy for acid reflux | 32 |
National Provider Directory
National Provider Directory- Medicare enrollment (NPD)
- Enrolled
- Credentials
- Doctor of Medicine
State licenses
| License | State | Type | Specialty |
|---|---|---|---|
| 2020042128 | MO | MD | Internal Medicine Physician |
Practice roles
| Organization | Specialty | Status | New patients |
|---|---|---|---|
| Gateway Gastroenterology Inc | Current | Accepting new patients |
Locations
121 Saint Lukes Center Dr
Ste 406
Chesterfield, MO 63017
Phone (314) 432-5900
17298 North Outer 40 Rd
Ste 200
Chesterfield, MO 63005
Phone (314) 529-4900
621 S New Ballas Rd
Ste 228A
Saint Louis, MO 63141
Phone (314) 251-4966
Interoperability endpoints
- https://fhir4.healow.com/fhir/r4/BBJFAD
Organizations & group practices 2
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.
-
- Specialist
- Chesterfield, MO
- NPI 1043250400
-
- Multi-Specialty Clinic/Center
- Saint Louis, MO
- NPI 1992746903
Hospital & facility affiliations 3
Hospitals and other facilities this clinician is affiliated with according to Medicare Care Compare.
-
- General Acute Care Hospital
- Saint Louis, MO
- NPI 1831107895
-
- General Acute Care Hospital
- Saint Louis, MO
- NPI 1487663506
-
dba St. Luke's Hospital
- General Acute Care Hospital
- Chesterfield, MO
- NPI 1346251543
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1529539200000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1792540800000",
"number": "1700370863",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "17298 N OUTER 40 RD STE 200",
"city": "CHESTERFIELD",
"state": "MO",
"postal_code": "630051456",
"telephone_number": "314-529-4900",
"fax_number": "314-434-2679"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "17298 N OUTER 40 RD STE 200",
"city": "CHESTERFIELD",
"state": "MO",
"postal_code": "630051456",
"telephone_number": "314-529-4900",
"fax_number": "314-434-2679"
}
],
"practiceLocations": [],
"basic": {
"last_name": "ANCHA",
"first_name": "SIRI",
"name_prefix": "Dr.",
"credential": "MD",
"sole_proprietor": "NO",
"sex": "F",
"enumeration_date": "2018-06-21",
"last_updated": "2026-10-21",
"certification_date": "2026-10-21",
"status": "A"
},
"taxonomies": [
{
"code": "207RG0100X",
"taxonomy_group": "",
"desc": "Internal Medicine, Gastroenterology",
"state": "MO",
"license": "2020042128",
"primary": true
}
],
"identifiers": [
{
"code": "05",
"desc": "MEDICAID",
"issuer": null,
"identifier": "200060948",
"state": "MO"
}
],
"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 General Med",
"city": "Saint Louis",
"state": "MO",
"country_code": "US",
"postal_code": "631101003",
"country_name": "United States",
"address_type": "DOM"
}
],
"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 Oct 21, 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.