Active NPI
Chase Rupprecht, DO
- Allergy & Immunology (Internal Medicine) Physician
- Chicago, IL
National Provider Identifier
1043738388
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Allergy & Immunology (Internal Medicine) Physician
- License
- 036175626
- Practice address
- 251 E Huron St
Chicago, IL 60611-2908 - Phone
- (312) 926-2000
- NPI assigned
- Sep 7, 2017
- Sex
- Male
- Sole proprietor
- Yes
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 |
|---|---|---|---|---|
| Allergy & Immunology (Internal Medicine) Physician | 207RA0201X | 036175626 | IL | Primary |
Addresses
Primary practice location
251 E Huron St
Chicago, IL 60611-2908
Mailing address
455 E Waterside Dr Unit 1601
Chicago, IL 60601-0017
Phone (973) 828-5833
Medicare participation
Medicare enrollment files- Medicare fee-for-service enrollment
- Not listed in the public Medicare enrollment file
National Provider Directory
National Provider Directory- Medicare enrollment (NPD)
- Enrolled
- Credentials
- Doctor of Osteopathy
State licenses
| License | State | Type | Specialty |
|---|---|---|---|
| 036175626 | IL | MD | Allergy & Immunology (Internal Medicine) Physician |
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1504742400000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1754524800000",
"number": "1043738388",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "455 E WATERSIDE DR UNIT 1601",
"city": "CHICAGO",
"state": "IL",
"postal_code": "606010017",
"telephone_number": "973-828-5833"
},
{
"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": "RUPPRECHT",
"first_name": "CHASE",
"name_prefix": "Dr.",
"credential": "DO",
"sole_proprietor": "YES",
"sex": "M",
"enumeration_date": "2017-09-07",
"last_updated": "2025-08-07",
"certification_date": "2025-08-07",
"status": "A"
},
"taxonomies": [
{
"code": "207RA0201X",
"taxonomy_group": "",
"desc": "Internal Medicine, Allergy & Immunology",
"state": "IL",
"license": "036175626",
"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 7, 2025; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
- National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.