Active NPI
Samuel D Krabbenhoft, MD, PHD
- Gastroenterology Physician
- Chicago, IL
National Provider Identifier
1033979638
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Gastroenterology Physician
- License
- 125.083655
- Practice address
- 251 E Huron St
Chicago, IL 60611-2908 - Phone
- (312) 926-2000
- NPI assigned
- Mar 20, 2024
- 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 |
|---|---|---|---|---|
| Gastroenterology Physician | 207RG0100X | 125.083655 | IL | Primary |
Addresses
Primary practice location
251 E Huron St
Chicago, IL 60611-2908
Mailing address
251 E Huron St
Chicago, IL 60611-2908
Phone (312) 926-2000
Medicare participation
Medicare enrollment files- Medicare fee-for-service enrollment
- Enrolled in IL
- 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 |
|---|---|---|---|---|
| I20240617000343 | IL | Order and Referring Only - Internal Medicine | 6901349190 |
National Provider Directory
National Provider Directory- Medicare enrollment (NPD)
- Enrolled
- Credentials
- Doctor of Medicine, Doctor of Philosophy
State licenses
| License | State | Type | Specialty |
|---|---|---|---|
| 125.083655 | IL | MD | Internal Medicine Physician |
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1710892800000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1786924800000",
"number": "1033979638",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "251 E HURON ST",
"city": "CHICAGO",
"state": "IL",
"postal_code": "606112908",
"telephone_number": "312-926-2000"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "251 E HURON ST",
"city": "CHICAGO",
"state": "IL",
"postal_code": "606112908",
"telephone_number": "312-926-2000"
}
],
"practiceLocations": [],
"basic": {
"last_name": "KRABBENHOFT",
"first_name": "SAMUEL",
"middle_name": "D",
"credential": "MD, PHD",
"sole_proprietor": "NO",
"sex": "M",
"enumeration_date": "2024-03-20",
"last_updated": "2026-08-17",
"certification_date": "2026-08-17",
"status": "A"
},
"taxonomies": [
{
"code": "207RG0100X",
"taxonomy_group": "",
"desc": "Internal Medicine, Gastroenterology",
"state": "IL",
"license": "125.083655",
"primary": true
}
],
"identifiers": [],
"endpoints": [],
"other_names": []
}Other providers in Chicago, IL
Sources for this page
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Aug 17, 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.