Active NPI
Jacob S Choi
- Hematology & Oncology Physician
- Chicago, IL
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Hematology & Oncology Physician
- License
- 036153310
- Practice address
- 251 E Huron St
Chicago, IL 60611-2908 - Phone
- (312) 695-6939
- NPI assigned
- Mar 25, 2016
- 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 5
| Specialty (taxonomy) | Code | License | State | Primary |
|---|---|---|---|---|
| Internal Medicine Physician | 207R00000X | 35.136075 | OH | |
| Hematology & Oncology Physician | 207RH0003X | 036153310 | IL | Primary |
| Medical Oncology Physician | 207RX0202X | 036.153310 | IL | |
| Medical Oncology Physician | 207RX0202X | 96453 | GA | |
| Student in an Organized Health Care Education/Training Program | 390200000X |
Addresses
Primary practice location
251 E Huron St
Chicago, IL 60611-2908
Mailing address
9500 Euclid Ave
Cleveland, OH 44195-0001
Phone (216) 444-2200
Other practice location 1
645 N Michigan Ave Ste 1006
Chicago, IL 60611-2814
Phone (312) 695-0990
Medicare participation
Medicare enrollment files- Medicare fee-for-service enrollment
- Enrolled in GA, IL
- Eligible to order & refer
- Part B services: Yes
- Medical equipment: Yes
- Home health: Yes
- Power mobility devices: Yes
- Hospice: Yes
Enrollment records 2
Care Compare profile
Medicare Care Compare- Specialty
- Hematology/Oncology
- Education
- University of Illinois College of Med (CHI/Peor/Rock/CHM-Urb), 2016
- Medicare assignment
- Accepts the Medicare-approved amount as payment in full
- Telehealth
- Offers telehealth services
- Group practices
Practice addresses (Care Compare)
1333 W Belmont Ave
Chicago, IL 60657-5785
1475 E Belvidere Rd
Grayslake, IL 60030-2012
233 E Superior St
Suite 1 051
Chicago, IL 60611-2913
Phone (312) 472-1234
250 E Superior
2304 Nwmff Prent WMN Hosp
Chicago, IL 60611-2914
Phone (312) 472-3660
250 E Superior St
Chicago, IL 60611-2914
251 E Huron
Chicago, IL 60611-2908
251 E Huron St
Chicago, IL 60611-2908
4445 W Irving Park Rd
Chicago, IL 60641-2808
636 Raymond Dr
Suite 107
Naperville, IL 60563-9789
Phone (630) 416-2300
660 N Westmoreland Rd
302 Lake Forest OBGYN
Lake Forest, IL 60045-1673
Phone (312) 926-6146
675 N Saint Clair St
Chicago, IL 60611-5975
675 N St Clair
Chicago, IL 60611-5975
7 Blanchard Cir
Wheaton, IL 60189-2038
Hospital & facility affiliations
- Northwestern Memorial Hospital
- Palos Community Hospital
- Northwestern Medicine Central Dupage Hospital
- Northwestern Lake Forest Hospital
Merit-based Incentive Payment System (MIPS)
- Final score
- 95.19 of 100
- Quality
- 83.05
- Promoting interoperability
- 100
- Improvement activities
- 40
Merit-based Incentive Payment System (MIPS)
- Final score
- 94.51 of 100
- Quality
- 80.61
- Promoting interoperability
- 100
- Improvement activities
- 40
National Provider Directory
National Provider Directory- Medicare enrollment (NPD)
- Enrolled
- Credentials
- Doctor of Medicine
State licenses
| License | State | Type | Specialty |
|---|---|---|---|
| 35.136075 | OH | MD | Internal Medicine Physician |
| 036153310 | IL | MD | Hematology & Oncology Physician |
| 036.153310 | IL | MD | Medical Oncology Physician |
Practice roles
| Organization | Specialty | Status | New patients |
|---|---|---|---|
| Northwestern Medical Faculty Foundation | Current | Accepting new patients | |
| Northwestern Medical Faculty Foundation | Current | Accepting new patients | |
| The Emory Clinic Inc | Internal Medicine | Current | Accepting new patients |
| Central Dupage Physician Group | Internal Medicine | Past | Accepting new patients |
| Northwestern Medical Faculty Foundation | Past | Accepting new patients |
Locations
1365 Clifton Rd NE
Atlanta, GA 30322
Phone (404) 778-7525
2201 Henderson Mill Rd NE
Ste 160
Atlanta, GA 30345
Phone (404) 251-2193
Dept 5777
Carol Stream, IL 60122
Carol Stream, IL 60122
Phone (630) 933-3300
251 E Huron St
Chicago, IL 60611
675 N Saint Clair St
Ste 17-100
Chicago, IL 60611
Phone (312) 926-4444
660 N Westmoreland Rd
#302
Lake Forest, IL 60045
Organizations & group practices 5
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
- Carol Stream, IL
- NPI 1346235314
-
- Internal Medicine Physician
- Atlanta, GA
- NPI 1396798229
-
- Durable Medical Equipment & Medical Supplies
- Chicago, IL
- NPI 1417718479
-
- Family Medicine Physician
- Carol Stream, IL
- NPI 1033149844
Internal Medicine
-
- Optometrist
- Grayslake, IL
- NPI 1770992448
Hospital & facility affiliations 6
Hospitals and other facilities this clinician is affiliated with according to Medicare Care Compare.
-
- General Acute Care Hospital
- Winfield, IL
- NPI 1003864810
-
- Psychiatric Hospital Unit
- Winfield, IL
- NPI 1740230895
-
- General Acute Care Hospital
- Lake Forest, IL
- NPI 1124025176
-
- General Acute Care Hospital
- Chicago, IL
- NPI 1497859649
-
- Psychiatric Hospital Unit
- Palos Heights, IL
- NPI 1184699118
-
- General Acute Care Hospital
- Palos Heights, IL
- NPI 1851386692
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1458864000000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1770163200000",
"number": "1407218704",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "9500 EUCLID AVE",
"city": "CLEVELAND",
"state": "OH",
"postal_code": "441950001",
"telephone_number": "216-444-2200"
},
{
"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": "312-695-6939"
}
],
"practiceLocations": [
{
"address_1": "645 N Michigan Ave Ste 1006",
"address_purpose": "LOCATION",
"city": "Chicago",
"state": "IL",
"postal_code": "606112814",
"country_code": "US",
"telephone_number": "312-695-0990",
"fax_number": "312-472-0564",
"country_name": "United States",
"address_type": "DOM"
}
],
"basic": {
"last_name": "CHOI",
"first_name": "JACOB",
"middle_name": "S",
"sole_proprietor": "YES",
"sex": "M",
"enumeration_date": "2016-03-25",
"last_updated": "2026-02-04",
"certification_date": "2026-02-04",
"status": "A"
},
"taxonomies": [
{
"code": "207R00000X",
"taxonomy_group": "",
"desc": "Internal Medicine",
"state": "OH",
"license": "35.136075",
"primary": false
},
{
"code": "207RH0003X",
"taxonomy_group": "",
"desc": "Internal Medicine, Hematology & Oncology",
"state": "IL",
"license": "036153310",
"primary": true
},
{
"code": "207RX0202X",
"taxonomy_group": "",
"desc": "Internal Medicine, Medical Oncology",
"state": "IL",
"license": "036.153310",
"primary": false
},
{
"code": "207RX0202X",
"taxonomy_group": "",
"desc": "Internal Medicine, Medical Oncology",
"state": "GA",
"license": "96453",
"primary": false
},
{
"code": "390200000X",
"taxonomy_group": "",
"desc": "Student in an Organized Health Care Education/Training Program",
"state": null,
"license": null,
"primary": false
}
],
"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 Feb 4, 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.