Active NPI
Lauren King Friend, MD
- Emergency Medicine Physician
- Chicago, IL
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Emergency Medicine Physician
- License
- D0107438
- Practice address
- 5841 S Maryland Ave
Chicago, IL 60637-1443 - Phone
- (888) 824-0200
- NPI assigned
- Mar 24, 2020
- Last updated
- Aug 5, 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 3
| Specialty (taxonomy) | Code | License | State | Primary |
|---|---|---|---|---|
| Emergency Medicine Physician | 207P00000X | 036171634 | IL | |
| Emergency Medicine Physician | 207P00000X | 01094625A | IN | |
| Emergency Medicine Physician | 207P00000X | D0107438 | MD | Primary |
Addresses
Primary practice location
5841 S Maryland Ave
Chicago, IL 60637-1443
Mailing address
6201 Greenleigh Ave
Middle River, MD 21220-2004
Phone (410) 933-2704
Other practice location 1
1800 Orleans St
Baltimore, MD 21287-0010
Phone (410) 502-2037
Other practice location 2
10855 Virginia St
Crown Point, IN 46307-0210
Phone (888) 824-0200
Other practice location 3
1740 W Taylor St
Chicago, IL 60612-7232
Phone (866) 600-2273
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
Care Compare profile
Medicare Care Compare- Specialty
- Emergency Medicine
- Education
- Virginia Commonwealth University, School of Medicine, 2020
- Medicare assignment
- Accepts the Medicare-approved amount as payment in full
- Group practices
Practice addresses (Care Compare)
5841 S Maryland Ave
Chicago, IL 60637-1443
Phone (888) 824-0200
Hospital & facility affiliations
Merit-based Incentive Payment System (MIPS)
- Final score
- 97.28 of 100
- Quality
- 89.92
- Promoting interoperability
- 100
- Improvement activities
- 40
- Cost
- 78.23
Merit-based Incentive Payment System (MIPS)
- Final score
- 100 of 100
- Quality
- 82.45
- 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 |
|---|---|---|---|
| 036171634 | IL | MD | Emergency Medicine Physician |
Practice roles
| Organization | Specialty | Status | New patients |
|---|---|---|---|
| The University of Chicago Medical Center | Current | Accepting new patients | |
| The University of Chicago Medical Center | Current | Accepting new patients | |
| Loyola University Medical Center | Current | Accepting new patients | |
| University of Chicago | Current | Accepting new patients |
Locations
150 Harvester Dr
Ste 300
Burr Ridge, IL 60527
Phone (773) 702-1061
1740 W Taylor St
Chicago, IL 60612
Phone (312) 355-4000
350 N Wall St
Kankakee, IL 60901
Phone (815) 935-7500
120 N Oak St
Oak Brook Mall, IL 60521
Phone (630) 856-6700
10855 Virginia St
Ste 1700
Crown Point, IN 46307
1500 S Lake Park Ave
Ste 109
Hobart, IN 46342
Phone (219) 942-0551
Interoperability endpoints
- lfriend140037@direct.luhs.org
- lfriend327244@uchospital.direct-ci.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.
-
- Multi-Specialty Clinic/Center
- Chicago, IL
- NPI 1821048786
-
- General Acute Care Hospital
- Chicago, IL
- NPI 1033218128
-
dba Foster G. McGaw Hospital
- General Acute Care Hospital
- Maywood, IL
- NPI 1376521575
-
dba UCMC Pharmacy Services
- Community/Retail Pharmacy
- Calumet City, IL
- NPI 1255895678
Hospital & facility affiliations 1
Hospitals and other facilities this clinician is affiliated with according to Medicare Care Compare.
-
- General Acute Care Hospital
- Chicago, IL
- NPI 1508956509
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1585008000000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1785888000000",
"number": "1942837604",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "6201 GREENLEIGH AVE",
"city": "MIDDLE RIVER",
"state": "MD",
"postal_code": "212202004",
"telephone_number": "410-933-2704",
"fax_number": "410-500-4266"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "5841 S MARYLAND AVE",
"city": "CHICAGO",
"state": "IL",
"postal_code": "606371443",
"telephone_number": "888-824-0200"
}
],
"practiceLocations": [
{
"address_1": "1800 Orleans St",
"address_purpose": "LOCATION",
"city": "Baltimore",
"state": "MD",
"postal_code": "212870010",
"country_code": "US",
"telephone_number": "410-502-2037",
"country_name": "United States",
"address_type": "DOM"
},
{
"address_1": "10855 Virginia St",
"address_purpose": "LOCATION",
"city": "Crown Point",
"state": "IN",
"postal_code": "463070210",
"country_code": "US",
"telephone_number": "888-824-0200",
"country_name": "United States",
"address_type": "DOM"
},
{
"address_1": "1740 W Taylor St",
"address_purpose": "LOCATION",
"city": "Chicago",
"state": "IL",
"postal_code": "606127232",
"country_code": "US",
"telephone_number": "866-600-2273",
"country_name": "United States",
"address_type": "DOM"
}
],
"basic": {
"last_name": "FRIEND",
"first_name": "LAUREN",
"middle_name": "KING",
"credential": "MD",
"sole_proprietor": "NO",
"sex": "F",
"enumeration_date": "2020-03-24",
"last_updated": "2026-08-05",
"certification_date": "2026-08-05",
"status": "A"
},
"taxonomies": [
{
"code": "207P00000X",
"taxonomy_group": "",
"desc": "Emergency Medicine",
"state": "IL",
"license": "036171634",
"primary": false
},
{
"code": "207P00000X",
"taxonomy_group": "",
"desc": "Emergency Medicine",
"state": "IN",
"license": "01094625A",
"primary": false
},
{
"code": "207P00000X",
"taxonomy_group": "",
"desc": "Emergency Medicine",
"state": "MD",
"license": "D0107438",
"primary": true
}
],
"identifiers": [],
"endpoints": [],
"other_names": []
}
Other providers in Chicago, IL
- Friend Family Health Center, Inc
- Friend Family Health Center, Inc
- Friend Family Health Center, Inc (Friend Health - South Shore)
- Friend of Dorothy Therapy Network
- Carolyn Joyce Friend, PSY.D.
- Tynan Harris Friend
- Friendly Family Health Center SC
- Friendly Family Medical Center
- Mercedes Frierson
- Elizabeth Fries
Sources for this page
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Aug 5, 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.